The present invention comprises: a rotary shaft, to the tip end of which an object to be mounted can be mounted; a housing which rotatably supports the rotary shaft via a bearing; a bearing case which is provided inside the housing and which accommodates a rear end side bearing; a preloading means which preloads the rear end side bearing; a guide member which is provided with a ball and a retainer and which is provided between an outer peripheral part of the bearing case and an inner peripheral part of the housing; and a driving motor which is provided inside the housing between a front end side bearing and the rear end side bearing. The bearing case can be moved by the preloading means in the axial direction of the rotary shaft via the guide member. Motor wiring of the driving motor is led to the outside via the outer diameter side of the bearing case. Open parts that are discontinuous in the circumferential direction are provided to the retainer of the guide member. Cutouts are provided to the outer peripheral part of the bearing case at the same phase positions as the open parts. The open parts and the cutouts form wiring spaces for the motor wiring.
A bearing device is provided which includes a first bearing, spacers, and a second bearing disposed on the outer periphery of a spindle so as to be axially located side by side. The first bearing and the second bearing each include an inner ring, an outer ring, and a plurality of rolling elements. The spacers are an inner ring spacer disposed between the inner rings of the first and second bearings, and an outer ring spacer disposed between the outer rings of the first and second bearings. One of the inner ring spacer and the outer ring spacer is a fixed spacer divided into a first member and a second member, and a circuit board is disposed in a space between the first member and the second member.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16C 33/66 - Special parts or details in view of lubrication
Provided is an angular contact ball bearing with which grease tends not to be entrained during initial rotation, and durability during high-speed rotation can be improved. This angular contact ball bearing (1) comprises an inner race (2), an outer race (3), balls (4) that are a plurality of rolling elements interposed between the inner race (2) and the outer race (3), and an annular retainer (5) that retains the plurality of balls (4) and guides the rolling elements. The angular contact ball bearing (1) is lubricated with grease. (a)/(b) = 0.68‒0.73, where (a) denotes the radial dimension between the inner peripheral surface (6b) of the retainer (5) and the outer peripheral surface (2c) of the inner ring (2) on the bearing front surface side, and (b) denotes the radial dimension between the inner peripheral surface (3b) of the outer race (3) and the outer peripheral surface (6a) of the retainer (5) on the front surface side of the bearing. The retainer (5) has an axially asymmetrical structure, including a large-diameter-side annular part (6) provided on the front surface side of the bearing, a small-diameter-side annular part (7) provided on the back surface side of the bearing, and a plurality of column parts (8) connecting the large-diameter-side annular part (6) and the small-diameter-side annular part (7).
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
Provided is a tapered roller bearing that prevents an inner ring assembly from coming apart. A cage for the tapered roller bearing includes a plurality of cage segments arranged in the circumferential direction. An inner ring assembly (As) can be assembled by integrating an inner ring (11), a plurality of tapered rollers (15), and the cage. The tapered roller bearing satisfies the following formulae (1) and (2). Formula (1): D ≤ 0.008E; Formula (2): (φF - φG)/2 ≥ 0.1H. In formula (1), "D" is the distance between a small end surface (15b) of each tapered roller (15) and a small flange portion (18) of the inner ring (11) in a state in which a large end surface (15a) of the tapered roller (15) is in contact with a large flange portion (19) of the inner ring (11), and "E" is the roller length of the tapered roller (15). In formula (2), "F" is the small flange outer diameter of the inner ring (11), "G" is the raceway surface small end diameter of the inner ring (11), and "H" is the small end diameter of the tapered roller (15).
F16C 19/36 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
This rolling member has a surface that serves as a contact surface with respect to another rolling member, and is made of a steel that has been quenched and tempered. The rolling member has a nitrided layer on the surface. The average nitrogen concentration in the surface of the rolling member is 0.10 mass% or more. The average carbon concentration in the surface is 0.60-1.5 mass%. The hardness of the surface is 800-1000 Hv. The retained austenite content in the surface is 20 vol% or less. In a cross-sectional view perpendicular to the surface, the area ratio of undissolved carbides having a particle size of 5.0 μm or less in the nitrided layer is 17% or less.
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ringsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for bearing races
C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
Provided is a rolling bearing with stable sealing properties. This rolling bearing comprises inner and outer rings (2, 3), a plurality of rolling elements, and a contact-type seal member (6) that closes a bearing space between the inner and outer rings (2, 3). The seal member (6) is provided with a seal collapse suppression means (St), a grease flow suppression means (GS), and a radial change amount reduction means (Rcr). The seal collapse suppression means (St) keeps an inner peripheral side portion (13) of the seal member (6) from collapsing inward in the axial direction. The grease flow suppression means (GS) suppresses the flow of grease from the inner peripheral surface of an auxiliary lip (16) to the inner-diameter-side tip of a main lip (15), and brings the main lip (15) into a desired contact state with a seal groove (7). The radial direction change amount reduction means (Rcr) reduces the radial direction change amount of the main lip (15) to a predetermined value or less within the range of an interference fit.
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10M 169/02 - Mixtures of base-materials and thickeners
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
C10N 50/10 - Form in which the lubricant is applied to the material being lubricated semi-solidForm in which the lubricant is applied to the material being lubricated greasy
Provided is a rolling device in which heat generation during rolling is suppressed and peeling resistance is improved. A rolling bearing 1 is a rolling device including: an inner ring 2 having a raceway surface 2a in contact with a ball 4; and a grease composition 7 for lubricating a contact part between the ball 4 and the inner ring 2. The inner ring 2 has a nitrided layer formed on the raceway surface 2a. The average nitrogen concentration at the surface is 0.10 mass% or more. The hardness at the surface is 800 Hv to 1,000 Hv. The residual austenite amount at the surface is 20 vol.% or less. The grease composition 7 contains base oil and a thickener. The kinematic viscosity of the base oil at 40°C is 12 mm2/s to 26 mm2/s. The maximum value of the storage modulus of the grease composition 7 is within a range of 50,000 Pa or less under viscoelasticity measurement conditions in which the temperature of the grease composition 7 is 25°C, the amount of strain is 1×10-5to 5×10-3, and the frequency is 1 Hz.
F16C 33/66 - Special parts or details in view of lubrication
C10M 115/00 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10M 169/02 - Mixtures of base-materials and thickeners
C21D 1/18 - HardeningQuenching with or without subsequent tempering
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ringsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for bearing races
C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
Provided is a rolling bearing capable of suppressing ridge marks caused by electrolytic corrosion. Rolling bearings 6, 7 are incorporated in an inverter-controlled motor 1, have an inner ring, an outer ring, and a plurality of rolling elements interposed between the inner ring and the outer ring, and are lubricated by a lubricant. The lubricant contains a base oil having a relative dielectric constant higher than 2.5 and a phosphorus-based additive. The base oil is an ester oil, the phosphorus-based additive is an aliphatic phosphoric acid ester having a linear or branched alkyl group, the aliphatic phosphoric acid ester has three alkyl groups, and each of the alkyl groups has 2‒8 carbon atoms.
C10M 169/02 - Mixtures of base-materials and thickeners
C10M 169/04 - Mixtures of base-materials and additives
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
C10N 50/10 - Form in which the lubricant is applied to the material being lubricated semi-solidForm in which the lubricant is applied to the material being lubricated greasy
9.
METHOD FOR ASSEMBLING WHEEL BEARING DEVICE, AND WHEEL BEARING DEVICE
In assembling a wheel bearing device 10 having an axial bearing gap as a negative gap, in an assembly (primary assembly) 1A obtained by combining an outer ring 11 and balls 14 (14A, 14B) to be interposed in each of first and second ball tracks, the axial-direction distance Y from a planned contact point of the ball 14A in contact with a first outer raceway surface 15A with respect to a first inner raceway surface 16A to a planned contact point of the ball 14B in contact with a second outer raceway surface 15B with respect to a second inner raceway surface 16B is measured, and an inner ring 13 and a hub ring 12 to be combined with the primary assembly 1A are selected on the basis of the measured value.
F16C 43/06 - Placing rolling bodies in cages or bearings
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
According to the present invention, a sheet obtained by thinly spreading, on a film, a support part for supporting a sample to be collected is provided on the film. The sheet is punctured with a needle having a hollow-shaped section, and thereby a sheet portion, which is a part of the sheet, is cut out and collected in the hollow-shaped section. The sheet portion in the hollow-shaped section is discharged from the inside of the hollow-shaped section, and the sheet portion is placed in a container (9A). The container (9A) and part of a gel plate (6) serving as a sheet are installed on the same stage (102).
This estimation device identifies, for each of eight ranges, an operation time during which the bearing temperature and the rotation speed are within the range, and estimates the occurrence of peeling or the like on the basis of the operation time for each of the eight ranges and a corrected rated life for each of the eight ranges.
First, in this method for producing a wheel bearing device, the dimensions of an outer ring 11, a hub ring 13, and an inner ring 14 are measured. Then, with respect to the hub ring 13 and the inner ring 14, a plurality of components for which dimensional measurement has been completed are retained. Thereafter, combinations of the outer ring 11, the hub ring 13, and the inner ring 14 in which each of the plurality of retained components is used are created, and the axial clearance of a wheel bearing device 10 in all of the combinations is calculated. On the basis of the calculated value of the axial clearance, one combination is selected from among all of the combinations, and the wheel bearing device 10 is assembled by using the outer ring 11, the hub ring 13, and the inner ring 14 of the selected combination.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
Provided are a parallel link mechanism and a link operation device that can be increased in rigidity without sacrificing a movable range. A parallel link mechanism (9) is provided with one bearing, a central housing (25) including the other bearing, and a connecting member (26). The one bearing rotatably supports one end of a rotary shaft (27) in a target connection part (Rk) for at least one connection part (Rk) among a connection part (Rk) between an end link member (15) on a proximal side and a center link member and a connection part (Rk) between an end link member (16) on a distal side and a center link member (17), and is fitted to the end link member (15, 16) on either the proximal side or the distal side or the center link member (17). The other bearing rotatably supports the other end of the rotary shaft (27) in the target connection part (Rk). A connecting member (26) connects a member to which the one bearing is fitted and a central housing (25) to each other.
F16H 21/50 - Gearings comprising primarily only links or levers, with or without slides with movements in three dimensions for interconverting rotary motion and reciprocating motion
B25J 11/00 - Manipulators not otherwise provided for
When the pitch circle diameter of balls (3) is D (mm) and the diameter of the balls (3) is d (mm), (D/d) ≥ 5 is satisfied. A resin cage (4) is formed of a resin composition having a Young's modulus of 4700 MPa or more at 120 °C, and the number Z of the balls (3) satisfies (d×Z)/πD ≤ 0.33 with respect to the diameter d (mm) of the balls (3) and the pitch circle diameter D (mm) of the balls (3).
F16C 19/04 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
15.
STATE MONITORING APPARATUS AND STATE MONITORING METHOD
This state monitoring apparatus (100) comprises: a storage device (150) that stores vibration data obtained from a sensor (20) that detects a physical quantity caused by vibration; and an arithmetic device (160) that receives the vibration data from the storage device (150) and performs abnormality determination. The arithmetic device (160) is configured to execute: a process for obtaining an envelope spectrum of a diagnosis target from vibration data of a bearing (12) to be diagnosed; a process for extracting diagnosis target data having an amplitude exceeding a first threshold value in the envelope spectrum of the diagnosis target; a process for calculating a comparison value of the diagnosis target from the amplitude of the extracted diagnosis target data; and a process for setting a value obtained by dividing the comparison value of the diagnosis target by a reference comparison value as a ratio of the comparison value, and determining that there is an abnormality if the ratio of the comparison value is equal to or greater than a preset second threshold value.
This automatic ball incorporation method comprises an assembly installation step S1, a tilting step S3, and an insertion step S4. In the tilting step S3, a pocket 5a of a cage 5 is exposed to an opening end part of an outer joint member 2 by tilting a tilting member 14 toward a spherical surface part 6 formed between two track grooves 7 adjacent to each other in a circumferential direction in the outer joint member 2.
F16D 3/20 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
F16D 3/2245 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a sphere where the groove centres are offset from the joint centre
The purpose of the present invention is to suppress increases in the torque of a sealing device with respect to a hub ring. In a bearing device 1 for a wheel, the volume Vp1a of a space surrounded by a side lip 92d, an intermediate lip 92c, and a sliding contact surface 34 and the volume Vp1b of a space surrounded by the intermediate lip 92c, a grease lip 92b, and the sliding contact surface 34 when the axial position of an outer side seal member 9 with respect to a hub ring 3 is a first intermediate position and the volume VS1a of a space surrounded by the side lip 92d, the intermediate lip 92c, and the sliding contact surface 34 and the volume VS1b of a space surrounded by the intermediate lip 92c, the grease lip 92b, and the sliding contact surface 34 when the axial position of the outer side seal member 9 with respect to the hub ring 3 is a first use position satisfy the relationship 0.1 ≤ (VP1a-VS1a)/Vp1a+(Vp1b-VS1b)/Vp1b ≤ 0.6.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16J 15/3232 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
F16J 15/3252 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
Provided is a moved object displaying system configured to efficiently detect an object that has moved. A moved object displaying system (1) includes: a camera (3); a control unit (11) ; and a display unit (5). The camera (3) is configured to take a before image comprising a plurality of objects, and an after image taken after the before image, from the same direction. The control unit (11) is configured to display, on the display unit (5), a difference between the before image and the after image by a heat map.
This plummer block comprises a bearing that rotatably supports a shaft, a bearing box that houses the bearing, and a sealing device sealing the space between the inner circumferential surface of an axial end opening of the bearing box and the outer circumferential surface of the shaft. The sealing device comprises: a seal member receiving body that is removably attached to the inner circumferential surface of the axial end opening of the bearing box; and a seal member that is fitted into a circumferential recess formed in an inner-diameter surface of the seal member receiving body. The seal member is in close contact with the outer circumferential surface of the shaft.
An oil seal 54 that seals a rolling bearing 1 for a rolling stock axle is provided with: a core 541; a lip part 542 which is integrated with the core 541 and comprises an elastic material; and an elastic member 543. The lip part 542 is provided with: a base part 542a covering the inner diameter end of the core 541; a main lip 542b extending from the base part 542a toward the bearing inner side; and a dust lip 542c that is, compared to the main lip 542b, located closer to the bearing outer side. The elastic member 543 applies tension to the main lip 542b. The total tension of the oil seal 54 is set to be 12 N or less.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
F16J 15/3212 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings with metal springs
F16J 15/3232 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
22.
SEALING DEVICE AND WHEEL BEARING DEVICE PROVIDED WITH SEALING DEVICE
Provided are: a sealing device capable of maintaining sealability between an end face on one side in an axial direction of an outer ring and a standing plate part even when a core metal falls to one side in the axial direction which is a direction of separation from the end face on the one side in the axial direction of the outer ring; and a wheel bearing device provided with the sealing device. The present invention includes a core metal 11 fitted to an inner periphery of an outer ring 2, and a seal member 12 joined to the core metal 11. The core metal 11 has an inner fitting part 11a fitted to the inner periphery of the outer ring 2, and a standing plate part 11b extending from one end part in an axial direction of the inner fitting part 11a to an outer diameter side. The seal member 12 has a projection part 12f protruding from the standing plate part 11b toward an inner side, and the standing plate part 11b falls to the other side in the axial direction in a direction orthogonal to a rotation axis center X.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
The purpose of the present invention is to improve workability in assembling an outer joint member of a constant-velocity universal joint to a hub ring in a bearing device for a wheel. A bearing device 1 for a wheel is configured such that an inner end surface of a crimped part 3f of a hub ring 3 and an outer end surface of a shoulder part 26 of an outer joint member 21 are spline-fitted together, and comprises a cylindrical cover member 32 that covers the outer periphery of the spline fitting of the inner end surface of the crimped part 3f of the hub ring 3 and the outer end surface of the shoulder part 26 of the outer joint member 21, the cover member 32 being configured from a heat-shrinkable material that shrinks when heated.
B60B 35/14 - Torque-transmitting axles composite or split, e.g. half-axlesCouplings between axle parts or sections
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
Provided are a grease composition capable of preventing grease leakage and suppressing heat generation inside a bearing, even under high-speed rotation conditions, and a grease-filled bearing in which the grease composition is enclosed. A grease composition 7 is enclosed in a rolling bearing 1 and comprises a base oil and a thickener. The kinematic viscosity of the base oil at 40℃ is 12-26 mm2/s, and the maximum value of the storage modulus is within a range of 6,000-50,000 Pa at a temperature of 25℃, a strain amplitude of 1 × 10-5 - 5 × 10-3, and a frequency of 1 Hz.
C10M 171/02 - Specified values of viscosity or viscosity index
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
F16C 33/66 - Special parts or details in view of lubrication
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10M 117/00 - Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof
C10N 50/10 - Form in which the lubricant is applied to the material being lubricated semi-solidForm in which the lubricant is applied to the material being lubricated greasy
A bearing including an inner ring, an outer ring, and a plurality of rolling elements arranged between the inner ring and the outer ring, the inner ring including an annular portion and an extension portion protruding in an axial direction from an end surface of the annular portion on a radially inner side and having a slit formed in the axial direction; and a clamping member that is externally fitted to the extension portion, and is configured to clamp and fix the extension portion to a shaft. A radially inner end portion of the clamping member on a bearing side is provided with a stepped portion to which a radially outer end portion of the annular portion is allowed to be fitted.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A sensor-equipped bearing is provided which includes a rolling bearing and a magnetic rotation sensor, and which further includes a hook member formed into an annular shape using a resin. The magnetic rotation sensor includes a magnetic ring coupled to an outer peripheral portion of an inner ring; and a magnetic sensor unit coupled to an outer ring. The magnetic ring includes a magnetic rubber member fixed to an annular metal core. The outer peripheral portion of the inner ring is formed with an outer peripheral groove circumferentially extending. The hook member includes a protrusion engaged in the outer peripheral groove of the inner ring. A metal core is held by the hook member.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A fixed-type constant-velocity universal joint 1 comprises: an outer joint member 2 and an inner joint member 3 in which a plurality of track grooves 7 each having a circular arc-shaped portion extending substantially in the axial direction are formed; a plurality of balls 4 disposed between the track grooves 7, 9 of both of the joint members 2, 3; and a retainer 5 having a pocket 5a for storing the balls 4, and having a spherical outer peripheral surface 12 and a spherical inner peripheral surface 13 respectively slidably contacting a spherical inner peripheral surface 6 of the outer joint member 2 and a spherical outer peripheral surface 8 of the inner joint member 3. The fixed-type constant-velocity universal joint 1 is characterized in that: a ball raceway center line Y of the track groove 9 of the inner joint member 3 is formed in mirror-image symmetry with a ball raceway center line X of the corresponding track groove 7 of the outer joint member 2 with reference to a plane P that includes a joint center O and is perpendicular to a joint axis N-N in a state where the operating angle is 0°; and the track groove 7 of the outer joint member 2 has a relief portion Tr which is formed in a back-side area required for ball insertion and starting from an axial ball 4 position at the maximum operating angel θ1, the area of the track groove 7 being located between a radial position Sr leaving a ball 4 contact point C and the spherical inner peripheral surface 6, wherein the track groove 7 has a portion in which the radial dimension E of the relief portion Tr is larger than the radial dimension F of a chamfered portion Tc having a substantially constant width and provided in a substantially whole area in the axial direction between the spherical inner peripheral surface 6 of the outer joint member 2 and the track groove 7.
F16D 3/2245 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a sphere where the groove centres are offset from the joint centre
F16D 3/20 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
An outboard side end portion of a cylindrical portion 31 of an outside joint member 21 is brought into contact with an inner race 14 from an inboard side, and contacting portions P for said contact are provided on the inner periphery of the inner race 14. As a result, since at least a part of the cylindrical portion 31 is disposed on the inner periphery of the inner race 14, the axial dimension of the wheel bearing device 1 can be reduced, thereby reducing weight.
B60B 35/14 - Torque-transmitting axles composite or split, e.g. half-axlesCouplings between axle parts or sections
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
This rolling bearing device is provided with: an angular contact ball bearing (10) in which a grease composition (15) is sealed; and a lubricant oil supply mechanism (20), wherein a detection unit (26) detects the temperature, vibration, and the like of the bearing (10), a control unit (22) determines the amount of oil supply and the timing of oil supply, and an oil is supplied from a tank (25) to the bearing (10) by a pump (24). A porous elastic body (50) having lubricant permeability is loaded in a casing (48) of a positive displacement pump (46), and a required amount of a lubricant is discharged into a bearing space by pressing the porous elastic body (50).
B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements
F04B 9/00 - Piston machines or pumps characterised by the driving or driven means to or from their working members
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
F16C 19/52 - Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
F16C 33/66 - Special parts or details in view of lubrication
F16N 7/38 - Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pumpCentral lubrication systems
F16N 13/02 - Lubricating-pumps with reciprocating piston
F16N 29/00 - Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditionsUse of devices responsive to conditions in lubricating arrangements or systems
The purpose of the present invention is to make it possible to easily confirm spline fitting during assembly of a vehicle, and to improve workability and assemblability without using additional components. A wheel bearing device 1, wherein: a hub ring 3 has a protrusion H1 that protrudes from the inner peripheral surface of a through-hole 3e toward the inside-diameter side, and a protrusion H2 that protrudes from the inner peripheral surface of the through-hole 3e toward the inside-diameter side on the other axial-direction side from the protrusion H1; a shaft part 27 has a protrusion C2 that protrudes from the outer peripheral surface of the shaft part 27 toward the outside-diameter side; the inside diameter h2 of the protrusion H2 and the outside diameter c3 of the protrusion C2 have the relationship (inside diameter h2 of protrusion H2) < (outside diameter c3 of protrusion C2); the protrusion H2 and the protrusion C2 can be elastically deformed, by axial-direction pressing force, so that the inside diameter h2 becomes large enough for the protrusion C2 to pass through; and in a state where a joint-side spline 262a and a hub-ring-side spline 31a are spline-fitted together, the protrusion C2 is positioned between the protrusion H1 and the protrusion H2 in the axial direction.
B60B 35/14 - Torque-transmitting axles composite or split, e.g. half-axlesCouplings between axle parts or sections
B60B 35/16 - Torque-transmitting axles characterised by the axle housings for the torque transmitting elements, e.g. for shafts
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
If a first dimension of each of N first application solutions is represented as r1n (n is a natural number of 1≤n≤N), a second dimension of each of M second application solutions is represented as r2m (m is a natural number of 1≤m≤M), and the distance between the center of any first application solution, a first dimension of which is r1n, selected out of the N first application solutions and the center of any second application solution, a second dimension of which is r2m, selected out of the M second application solutions is represented as Dn, m, the any first application solution and the any second application solution are supplied such that one of
If a first dimension of each of N first application solutions is represented as r1n (n is a natural number of 1≤n≤N), a second dimension of each of M second application solutions is represented as r2m (m is a natural number of 1≤m≤M), and the distance between the center of any first application solution, a first dimension of which is r1n, selected out of the N first application solutions and the center of any second application solution, a second dimension of which is r2m, selected out of the M second application solutions is represented as Dn, m, the any first application solution and the any second application solution are supplied such that one of
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holds between the any first application solution and the any second application solution.
A rolling bearing including an inner ring, an outer ring, and a plurality of rolling elements disposed at a predetermined distance from each other along a circumference of a pitch circle, wherein a relational expression of log10t=A·log10+C holds, where p denotes the predetermined distance, d denotes a diameter of each of the rolling elements, and t denotes a thickness between an outer ring raceway surface and an outer circumferential surface of the outer ring, and relations of 0.4≤A≤0.6 and −2≤C≤0 are satisfied.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A locking mechanism 12 of this clutch unit comprises a first lock element 27 provided to an output member 22 and a second lock element 28 that engages with the first lock element 27. Together with rotation of an input member, the second lock element 28 of the locking mechanism 12 rotates about a second rotational axis RA2, thereby disengaging from the first lock element 27.
F16D 41/08 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
B60N 2/16 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
F16D 41/10 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing
F16D 41/18 - Freewheels or freewheel clutches with non-hinged detent
The present invention is a tripod-type constant-velocity joint 1 in which three arc-shaped large diameter portions 22 and three arc-shaped small diameter portions 23 are alternately provided in the joint circumferential direction Z on the inner-diameter surface 21 of an outer joint member 2, a track groove 5 is formed inside of each large diameter portion 22, the large diameter portions 22 and the small diameter portions 23 are connected via roller guide surfaces 6, and rollers are retained by means of a clip 10 mounted in a cup part 20. The clip 10 protrudes from the roller guide surfaces 6 at both joint-circumferential direction-Z ends of each clip mounting groove 25, retaining portions 10c capable of coming into contact with the outer-diameter surfaces of the rollers are provided at portions of the clip 10 located outside of the clip mounting grooves 25, and each retaining portion 10c extends in parallel with the axis of a leg shaft 32 and is disposed to follow a roller guide surface 6.
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
A tripod-type constant-velocity universal joint comprises: an outer joint member provided with three circumferentially spaced, axially extending track grooves, each of the track grooves having a pair of roller guide surfaces that are arranged opposite each other in the circumferential direction; a tripod member provided with three leg shafts that protrude in a radial direction; and rollers inserted into the track grooves, the rollers being configured to be capable of moving in the axial direction of the outer joint member along the roller guide surfaces. In the outer peripheral surface of each roller, cylindrical parts having cylindrical surface shapes are provided on both sides sandwiching the widthwise center of the roller, and a recess that is recessed relative to the outer peripheral surfaces of the cylindrical parts is provided between the cylindrical parts. In each roller guide surface, flat surface parts having flat surface shapes are provided on both sides sandwiching the widthwise center of the roller, and a protrusion that protrudes relative to the end surfaces of the flat surface parts and engages with the recesses of the rollers is provided between the flat-surface parts.
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
36.
SPINDLE DEVICE, GRINDING DEVICE, AND CUTTING MACHINING DEVICE
In the present invention, while a rotary shaft is stationary or rotating at a low speed, a lip part is brought into pressure contact with a contact surface provided on a housing to seal between the rotary shaft on the leading end side of a device and the housing, and the lip part is separated from the contact surface to release the sealing when the rotary shaft rotates at a prescribed rotation speed exceeding the low-speed rotation or higher. The present invention comprises a deformation reduction member that limits deformation of the lip part while the rotary shaft is rotating. The housing is provided with an outer-diameter-side flow path through which air sucked into the device from the outside flows in the device, and the outer-diameter-side flow path is provided with an outer-diameter-side spiral passage. An air discharge path for discharging air from the leading end side of the device is in communication with the outer-diameter-side flow path, and a sealing device is disposed in the air discharge path. In addition to the centrifugal force of the rotary shaft in rotation, the air flowing through the outer-diameter-side flow path acts at the time when the lip part of the sealing device is separated from the contact surface.
B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements
B23B 25/00 - Accessories or auxiliary equipment for turning-machines
B23Q 1/70 - Stationary or movable members for carrying working-spindles for attachment of tools or work
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B23Q 11/08 - Protective coverings for parts of machine toolsSplash guards
F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
37.
SPINDLE DEVICE, GRINDING DEVICE, AND CUTTING DEVICE
According to the present invention, while a rotating shaft is stationary or rotating at a low speed, a lip portion is in pressure contact with a contact surface provided on a housing, forming a seal between the rotating shaft on a device tip side and the housing, and when the rotating shaft is at or above a predetermined rotational speed exceeding the low-speed rotation, the lip portion separates from the contact surface as a result of a centrifugal force associated with the rotating shaft, thereby releasing the seal. A deformation suppressing member is provided to limit deformation of the lip portion during the rotation of the rotating shaft. A lid member is provided with a blade for sucking in external air and feeding the air into the housing under pressure, and the housing is provided with an outer diameter-side passage path through which the air sucked into the device from the outside by the rotation of the lid member flows through the device. An air discharge path for discharging air at least from the tip end side of the device communicates with the outer diameter-side passage path, and a sealing device is disposed in the air discharge path. When the lip portion of the sealing device separates from the contact surface, the air pressure of the air flowing through the outer diameter-side passage path acts in addition to the centrifugal force during the rotation of the rotating shaft.
B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements
B23B 25/00 - Accessories or auxiliary equipment for turning-machines
B23Q 1/70 - Stationary or movable members for carrying working-spindles for attachment of tools or work
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B23Q 11/08 - Protective coverings for parts of machine toolsSplash guards
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 35/12 - Rigid support of bearing unitsHousings, e.g. caps, covers for spindles with ball or roller bearings
F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
A shell-type needle roller bearing is provided which includes an outer ring in which a material excellent in corrosion resistance is used, and which can be easily press-fitted and can be manufactured at a low cost. A shell-type needle roller bearing is manufactured that includes a shell-type outer ring made of an austenitic stainless steel material, and having a radially outer surface including a non-heat-treated surface.
F16C 19/26 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
39.
SPINDLE DEVICE, GRINDING DEVICE, AND CUTTING MACHINING DEVICE
While a rotary shaft is stationary or rotating at a low speed, a lip part is brought into pressure contact with a contact surface provided to a housing to seal between the housing and the rotary shaft on the device-distal-end side, and while the rotary shaft is rotating at least at a prescribed rotation speed exceeding the low speed, the lip part is separated from the contact surface by centrifugal force associated with the rotary shaft to release the sealing. The present invention comprises a deformation suppression member that limits deformation of a lip part during rotation of a rotary shaft. The rotary shaft is provided with an impeller that suctions external air and force-feeds the air into a housing. The housing is provided with an outside-diameter-side passage path through which the air suctioned into the device from the outside by the rotation of the impeller flows within the device. An air discharge path via which air is discharged at least from the device-distal-end side communicates with the outside-diameter-side passage path, and a sealing device is disposed in the air discharge path. When the lip part of the sealing device is separated from the contact surface, the air pressure of the air flowing through the outside-diameter-side passage path acts in addition to the centrifugal force during the rotation of the rotary shaft.
B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements
B23Q 1/70 - Stationary or movable members for carrying working-spindles for attachment of tools or work
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 35/12 - Rigid support of bearing unitsHousings, e.g. caps, covers for spindles with ball or roller bearings
F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
Provided is a sealing device capable of ensuring sealing performance of the sealing device by suppressing movement of a slinger to the inner side without increasing man-hours when press-fitting the slinger into a hub ring and without increasing press-fit force for the slinger. An outer-side seal member 10 comprises: a slinger 13 having a cylindrical part 13a provided on a base part 3d of a wheel attachment flange 3b and fitted to an outer circumferential surface 31 of a hub ring 3, a disk part 13b facing a flange-side surface 32, and a connection part 13c connecting the cylindrical part 13a and the disk part 13b; a core metal 11 fitted to an outer-side end part of an outer ring 2; and a first elastic member 12 having seal lips 12b-12d. The connection part 13c of the slinger 13 has a small disk part 131 and a small cylindrical part 132. The direction in which the small disk part 131 extends intersects the direction in which the small cylindrical part 132 extends. A connection portion between the cylindrical part 13a and the small disk part 131 and a connection portion between the disk part 13b and the small cylindrical part 132 are bent.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16J 15/3256 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
Provided is a wheel bearing device that can make it easier to fit a hub ring and an outer joint member together without using additional components, and that can minimize the incidence with which the hub ring and the outer joint member are not properly fitted together. In a wheel bearing device 1, a hub ring 3 has a circumferentially extending protruding part 32 protruding from the inner peripheral surface of a through hole 3e to the inner diameter side, and a cutaway part 32a formed by cutting away a circumferential-direction part of the protruding part 32. An outer joint member 21 has a locking projection 27b that protrudes from the outer peripheral surface of a shaft part 27 to the outer diameter side and that can pass through the cutaway part 32a. In a state where the shaft part 27 has been inserted into the through hole 3e and the locking projection 27b has passed through the cutaway part 32a from the inner side, the shaft part 27 rotates relative to the hub ring 3, whereby the locking projection 27b and the protruding part 32 can be locked.
B60B 35/14 - Torque-transmitting axles composite or split, e.g. half-axlesCouplings between axle parts or sections
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
A constant-velocity universal joint according to the present invention comprises: an outer joint member 2 having an inner peripheral surface 2a in which a plurality of track grooves 2b are formed; an inner joint member 3 which is disposed inside the outer joint member 2 and has a female spline 34 formed on an inner periphery; and a torque transmission member 4 which transmits torque between the outer joint member 2 and the inner joint member 3. At both ends of the female spline 34 in the axial direction of the joint, relief parts 36, 37 having tooth tip surfaces larger in diameter than tooth tip surfaces at other places are provided.
F16D 3/20 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
F16D 3/227 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
Pillars of a cage of a roller bearing are shaped to come into contact with rollers guiding the cage, on their anti-separation portions. In an imaginary plane orthogonal to the center axis of each roller, a contact angle defined by a first imaginary straight line connecting together a contact point between the roller and the pillar and the center axis, and a second imaginary straight line orthogonal to the radial direction and passing through the center axis is set to 20 to 24 degrees.
F16C 19/26 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
This hub assembly 41 includes a bearing device 1 for wheel and a constant velocity universal joint 21 which are mutually joined through a screw member 44 having external thread parts 42, 43 at both ends. When being inserted into a through-hole 16 axially penetrating an inner member 12, the screw member 44 has the external thread part 42 on one end that is screwed into an internal thread hole 46 at a bottom part 27 of an outer joint member 22, and the external thread part 43 on the other end, to which a nut 45 is attached so as to clamp the inner member 12 by the nut 45 and the outer joint member 22.
This hub assembly 41 includes a bearing device 1 for wheel and a constant-velocity universal joint 21 that are joined in a power transmittable manner. An inner ring 4 is press-fitted to an outer periphery of a hub ring 3 from an inboard side, and an annular connection member 14 is fitted to the outer periphery of the hub ring 3 in a state of abutting on the inner ring 4 in an axial direction on the inboard side. The inner ring 4 and the connection member 14 are held and fixed to the hub ring 3 by plastic deformation to the outside in a radial direction of an inboard-side end part of the hub ring 3, and an outside joint member 22 of the constant-velocity universal joint 21 and the connection member 14 are connected to each other by serration fitting.
F16D 1/06 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
B60B 35/14 - Torque-transmitting axles composite or split, e.g. half-axlesCouplings between axle parts or sections
B60B 35/18 - Torque-transmitting axles characterised by the arrangement of the bearings for the torque transmitting elements in the axle housings
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16D 3/22 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
A fixed constant velocity universal joint 1 is of a track groove intersection type in which forces acting on a cage 5 are balanced, and the fixed constant velocity universal joint 1 has second track groove sections 7b, 9b corresponding to a high operating angle. The setting angle η2 of balls 4 positioned in the second track groove sections 7b, 9b and the setting angle η1 of balls positioned in first track groove sections 7a, 9a are set to be equal to each other in an operating angle region where a plurality of the balls 4 enter the second track groove sections 7b, 9b.
F16D 3/2233 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts where the track is made up of two curves with a point of inflexion in between, i.e. S-track joints
In a fixed constant-velocity universal joint 1 of the cross track groove type, track grooves 7, 9 of an outer joint member 2 and an inner joint member 3 have first track groove parts 7a, 9a provided in an axial region that includes a joint center O, and second track groove parts 7b, 9b for coping with high articulation angles. Ball raceway centerlines Xa, Ya of the first track groove parts 7a, 9a form circular arc shapes having centers of curvature Oo1, Oi1 with no axial offset relative to the joint center O. The centers of curvature Oo1, Oi1 are offset radially by Fy to the side approaching the ball raceway centerlines Xa, Ya relative to a joint axis N–N.
F16D 3/2245 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a sphere where the groove centres are offset from the joint centre
F16D 3/224 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a sphere
F16D 3/2233 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts where the track is made up of two curves with a point of inflexion in between, i.e. S-track joints
48.
INSULATED ROLLING BEARING AND METHOD FOR MANUFACTURING INSULATED ROLLING BEARING
An insulating cover (5) includes: a cylindrical outer peripheral cover section (5a) that covers an outer peripheral surface (1a) of an outer ring (1); a pair of chamfer cover sections (5b) that have an arc-shaped cross section and cover a pair of chamfer sections (1b) of the outer ring (1); and a pair of end surface cover sections (5c) that cover a pair of axial end surfaces (1c) of the outer ring (1). Thick sections (8) that circumferentially extend in an annular shape and have a thickness greater than the thickness of the outer peripheral cover section (5a) at an axially central position are formed at both axial ends of the outer peripheral cover section (5a).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 35/077 - Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
49.
INSULATED ROLLING BEARING AND MANUFACTURING METHOD FOR INSULATED ROLLING BEARING
Provided is an insulated rolling bearing that is manufactured at low cost and can prevent insufficient strength or deformation in a high-temperature environment such as a motor for an electric vehicle. An insulating coating (5) is obtained by heating and deforming a heat-shrinkable tube (10) in which the glass transition temperature of a resin is 120 °C or higher.
F16C 35/077 - Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 35/077 - Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
A wheel bearing device 1 comprises: an outer wheel 2 (external member); a hub wheel 3 and an inner wheel 4 (internal member); a ball 8 (rolling body); and an outer-side seal member 10 (seal member). The outer-side seal member 10 has a cored bar 11 and a seal section 12. The seal section 12 has: a projection 12e that protrudes toward the inner side and contacts an outer-side end surface 2g of the outer wheel 2; and a protrusion 12f that is disposed radially outward of the projection 12e, that protrudes toward the inner side, and that contacts a chamfered section 2h of the outer wheel 2.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
In a double offset constant-velocity universal joint 1 having a normal angle of 5° or less, a grease with a coefficient of friction greater than 0.08 is used as a grease to be sealed inside an outer joint member 2. This arrangement allows for a reduction of the torque loss ratio in the operating angle range near the normal angle that is frequently used.
F16D 3/227 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
A radial-direction clearance between a cylindrical inner circumferential surface 6 of an outer joint member 2 of a double offset-type constant velocity universal joint 1 and an outer circumferential surface of a cage 5 is set to 0.160-0.200 mm. As a result, an operation angle at which generation of an induced thrust starts is shifted to a high angle side, making it possible to reduce the induced thrust in a low operation angle region.
F16D 3/227 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
The present invention makes it possible to realize a bearing that can be applied under high-speed rotation conditions. In this ball bearing, when Da represents the ball diameter, D represents the bearing outer diameter, d represents the bearing inner diameter, and PCD represents the pitch circle diameter of a ball (5), the minimum wall thickness t in the axial direction of an annular part (11) at the bottom of a pocket (12) is 15-30% of the ball diameter Da, the bearing inner diameter d is 25-55 mm, the bearing outer diameter D is 50-90 mm, the bearing width H is 10-20 mm, the ball diameter Da is 7/32 inches or less, and the ratio of the value that is specified by 1/2 of the difference between the pitch circle diameter PCD and the bearing inner diameter d with respect to the bearing inner diameter d is 10-20%.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
A parts feeding system includes: a conveyance carrier having an arc shape including a circular shape or an elliptic arc shape including an elliptic shape for conveying a workpiece; a parts feeder feeding the workpiece to the conveyance carrier; and a robot fixed at a base end thereof and picking up the workpiece on the conveyance carrier at a tip end thereof. The robot has a plurality of arm members rotating around rotational axes, and a first rotational axis at the most basal end side is located inside a virtual circle or a virtual ellipse of the conveyance carrier.
B65G 47/14 - Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding
56.
VIBRATION ANALYSIS DEVICE AND ABNORMAL PORTION IDENTIFICATION SYSTEM INCLUDING SAME
A vibration analysis device disclosed herein comprises a control device (31) and a display device (34). The control device (31) determines candidate portions corresponding to each of the peaks of a frequency spectrum on the basis of a feature frequency generated due to an abnormality in a portion of a rotating body. The control device (31) excludes a specific portion from the candidate portions and determines the remaining candidate portions as abnormal portions when a second peak of a lower corresponding order than a first peak corresponding to the feature frequency of the specific portion is not present in the frequency spectrum. The control device (31) causes the display device (34) to display an abnormal portion for each peak of the frequency spectrum.
BALLBALLBALL of a plurality of balls 4 is 0.05 or more and less than 0.07. As a result, the operation angle at which the induced thrust starts to be generated is shifted to the high angle side, and the induced thrust in the low operation angle region can be reduced.
F16D 3/227 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
The gripping device (2) according to the present invention is provided with: a pair of gripping claws (4) that grip or release a workpiece (W) by performing an opening/closing operation; an opening/closing mechanism (6) that moves the gripping claws (4) in an opening/closing direction; and a rotation mechanism (14) that rotates the gripping claws (4) about an axis (AX1) of an oscillating rotation shaft (8) parallel to the opening/closing direction. The opening/closing mechanism (6) has a linear motion element (10) to which the gripping claws (4) are connected and which moves in the opening/closing direction. The rotation mechanism (14) has: an oscillating rotation drive source (16) that rotationally drives the gripping claws (4) about the axis (AX1) of the oscillating rotation shaft (8); and a link part (18) that is connected to at least one gripping claw (4) and transmits the power of the oscillating rotation drive source (16) to the gripping claw (4).
Provided is a rolling bearing with stable sealing properties. The rolling bearing includes an inner ring (2), an outer ring (3), a plurality of rolling bodies interposed between the inner ring (2) and the outer ring (3), and a sealing member (6) that seals a bearing space between the inner ring (2) and the outer ring (3). An outer peripheral side portion (8) of the sealing member (6) is fixed to a seal groove (9) of the outer ring (3), and an inner peripheral side portion (13) of the sealing member (6) is provided with a lip (15) that contacts an outer surface (7c) of the seal groove (7) of the inner ring (2). The sealing member (6) is provided with a seal collapse prevention means (St) for preventing the inner peripheral side portion (13) from collapsing axially inward. The seal collapse prevention means (St) has an inner surface (8a) of the outer peripheral side portion (8) of the sealing member (6) that comes into contact with the seal groove (9) of the outer ring (3) and has an inclined surface (8aa) that is inclined toward the inner diameter side while extending axially inward.
This rolling bearing comprises an inner ring (2), an outer ring, a plurality of rolling elements interposed between the inner ring (2) and the outer ring, and a seal member (6) sealing a bearing space between the inner ring (2) and the outer ring. The seal member (6) includes a metal core (10) and a contact-type main lip (15) positioned radially inward of the metal core (10). The main lip (15) has a contact portion (15c) that comes into contact with a seal groove (7) of the inner ring (2) with an interference. The seal member (6) is provided with a radial change reducing means (Rcr) for reducing an amount of radial change of the contact portion (15c) to a predetermined value or less within the range of the interference. The radial change reducing means (Rcr) is constructed such that, at the time of maximum interference, a maximum protruding position (Pk) on an axially outer side of a bent portion (Be) is located axially outside a bottom (Ks) of an axially outer portion of a constricted portion (14), and is located at the same axial position as or axially inside an axial position (Tm) of an end surface of the inner ring (2) or the outer ring.
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
F16C 19/04 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
An energization unit (1) is configured to have: a conductive annular case body part (2) in which a gap that opens radially inward is formed; a conductive energization member (3) that is provided within the gap and protrudes radially inward from the case body part (2); and an energization assistance member (4) that is provided between the case body part (2) and the energization member (3) and assists energization between the case body part (2) and the energization member (3). A bearing unit (A) is configured to have: the energization unit (1); and a bearing (7) that has an outer ring (14), an inner ring (15), a rolling element (16), and a holder (17), the outer ring (14) being disposed so as to abut the energization unit (1).
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
A rotation braking device includes a cage disposed so as to be movable between an engagement position at which engagement elements are engaged with an inner member and an outer member, and a disengagement position at which the engagement elements are disengaged from the inner member and the outer member; a centering spring rotationally fixed to the cage; an axially movable friction member rotationally fixed to the cage; a separation spring for biasing the friction member in the direction away from an electromagnet via an armature; and a friction surface portion configured to axially receive the biased friction member and to apply a circumferential force to the friction member. The friction member is attracted to the armature when the electromagnet is energized. A surface treatment for reducing friction resistance is applied to at least one of opposed contact surfaces of the friction member and the armature.
A hollow circular cylindrical blank (16) formed from a resin composition in which the alignment direction of a fibrous reinforcement material (14) corresponds to the axial direction of the blank (16) is produced by using a mold (15) having a circular cylindrical cavity (17) and a gate (18) that opens to one axial end of the circular cylindrical cavity (17), so as to inject, into the circular cylindrical cavity (17), the resin composition in a melted state from the gate (18). A resin retainer (1) is formed by performing cutting machining on the circular cylindrical blank (16).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
This current-carrying unit (1) comprises a conductive annular case body part (2) having a gap (10) formed so as to open radially inward, a conductive current-carrying member (3) provided in the gap (10) and protruding radially inward from the case body part (2) to be in slidable contact with a rotating shaft body (5), and an elastic member (4) that biases the current-carrying member (3) radially inward, wherein the current-carrying member (3) has an inner peripheral edge formed such that the axial length thereof decreases toward the radially inner side. This bearing unit (A) comprises the current-carrying unit (1), and a bearing (7) having an outer ring (13), an inner ring (14), rolling elements (15), and a cage (16), the outer ring (13) being disposed so as to abut the current-carrying unit (1).
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A bearing device includes a bearing and a sensor unit. The sensor unit is fixed to a stationary ring of the bearing, and retains a sensor that monitors a state of the bearing. The sensor unit includes a cage member including a side plate portion and a circumferential portion. The circumferential portion of the cage member fits in the stationary ring. A part of a first fit surface of the circumferential portion to fit in the stationary ring and a part of a second fit surface of the stationary ring to fit on the circumferential portion are in contact with each other and another part of the first fit surface and another part of the second fit surface are spaced from each other.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
A monitoring device includes an acquisition unit that acquires a measured value of a sensor, a detection unit that detects a rubbing noise of a bearing based on the measured value, and a diagnosis unit that diagnoses a state of the bearing based on the measured value, wherein the diagnosis unit diagnoses the bearing using the measured value that does not include the rubbing noise detected by the detection unit.
A lock mechanism 12 of this clutch unit includes a first lock element 27 provided on an output member 22, and a second lock element 28 that engages with the first lock element 27. An output-side clutch part 11 of the clutch unit includes a side plate 25 fixed to a fixed object. The first lock element 27 and the second lock element 28 in the lock mechanism 12 are provided on an outer surface 25a side of the side plate 25 opposite the fixed object.
F16D 41/10 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing
F16D 41/06 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
F16D 41/08 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
F16D 41/067 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical and the members being distributed by a separate cage encircling the axis of rotation
F16D 63/00 - Brakes not otherwise provided forBrakes combining more than one of the types of groups
The present invention addresses the problem of providing a wheel bearing device with a reduced outer diameter of an outer member and reliably having a non-heat-treatment hardened layer even in the reduced portion. An outer ring 2 has an outer-side thermohardening layer 20 along an outer raceway surface 2c/2d. A ball 7 makes contact with the outer raceway surface 2d at a contact angle α. The outer-side thermohardening layer 20 has a hardened layer depth C in the contact angle α direction from a shoulder portion 2f of the outer raceway surface 2c/2d, and has a hardened layer depth A in a radial direction from an intersection P2 between the outer raceway surface 2d and a virtual line passing through the ball center and extending in a direction orthogonal to the axial direction. The hardened layer depth A is between 0.5 mm and 4.0 mm. The outer ring 2 has a thickness Ta equal to or less than 6 mm in the radial direction of the portion passed through by the virtual line passing through the ball 7 center and extending in a direction orthogonal to the axial direction. The outer ring 2 has a thickness Tc equal to or greater than the hardened layer depth C + 1.0 mm in the contact angle α direction between the shoulder portion 2f of the outer raceway surface 2d and the outer peripheral surface of the outer ring 2.
B60B 35/14 - Torque-transmitting axles composite or split, e.g. half-axlesCouplings between axle parts or sections
B60B 35/16 - Torque-transmitting axles characterised by the axle housings for the torque transmitting elements, e.g. for shafts
B60B 35/18 - Torque-transmitting axles characterised by the arrangement of the bearings for the torque transmitting elements in the axle housings
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
A parameter adjustment device comprises a coordinate data acquisition unit that acquires coordinate data of an industrial machine; a parameter generation unit that generates an operation parameter; a parameter storage unit that stores the operation parameter; a state data acquisition unit that acquires state data of the industrial machine; an index data calculation unit that calculates index data based on the state data; a sample storage unit that stores sample data in which the operation parameter is associated with the index data; a parameter search unit that uses the sample data to search for an operation parameter estimated to be appropriate; and a model training unit that uses training data in which an operation parameter estimated to be appropriate is associated with the coordinate data to generate a trained model for estimating an appropriate parameter from the coordinate data.
In a wheel bearing device (1): a ratio of an axial direction length C of a recessed portion (3h) formed in a through-hole (3e) of a hub ring (3) to a pitch circle diameter A of the recessed portion formed in an inner circumferential surface of the hub ring is 0.7≤(C/A)≤1.07; a ratio of an axial direction distance E between a flange surface (3j) of a wheel attachment flange (3b) and an inner end surface (4b) of an inner race (4) to an inter-ball pitch F between an inner ball row (5) and an outer ball row (6) is 2.85≤(E/F); and a ratio of the axial direction distance E to a pitch circle diameter D of balls (8) is 0.8≤(E/D) ≤0.94. The wheel bearing device makes it possible to suppress an increase in weight while suppressing generation of abnormal sounds.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16D 3/223 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
The present invention addresses the problem of reducing stress concentration in a hub ring while ensuring the sealing properties of a sealing device in a wheel bearing device. The present invention is configured to satisfy at least one of the following relationships: 0.04 ≤ (r − h) / PCDh ≤ 0.80 where r is a radius of curvature of a stepped section (3i), h is an axial-direction length at a first boundary P1 of a boundary portion between a radial-direction inner end of the stepped section (3i) and a radial-direction outer end of a seal land section (3g) and at a second boundary P2 of a boundary portion between a radial-direction outer end of the stepped section (3i) and a radial-direction inner end of a flange side surface of an axle attachment flange (3b), and PCDh is a pitch circle diameter of a hub bolt (3f); and 0.04 ≤ (d1 − d2) / (2 × PCDh × tanθ) ≤ 0.80 where d1 is a diameter of the first boundary P1, d2 is a diameter of the second boundary P2, PCDh is a pitch circle diameter of the hub bolt (3f), and θ is an angle of a tangent with respect to the radial direction at the first boundary of the stepped section (3i).
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
Provided is a rolling bearing that can prevent wear of a pocket wall portion even at medium and high rotational speeds at a low cost and realize a reduction in wear of a retainer, by an improvement of the pocket shape of the retainer. This deep groove ball bearing (1) as a rolling bearing, comprises: an inner ring (2); an outer ring (3); a plurality of ball-shaped rolling elements (4) interposed between the inner and outer rings; and a retainer (5) retaining the rolling elements. The retainer has two annular bodies (5a, 5a) stacked on each other in an axial direction. Each annular body (5a) has a plurality of pocket wall portions (10) arranged in a circumferential direction, and each of which forms a pocket (8) for retaining the rolling element. Each pocket wall portion (10) is formed of a first spherical portion (11), a second spherical portion (12) having a smaller radius of curvature than the first spherical portion, and a third spherical portion (13) smoothly connecting between the first spherical portion and the second spherical portion.
F16C 33/42 - Ball cages made from wire or sheet-metal strips
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
The present invention is such that a magnetic ring-side peripheral surface portion and a rotor-side peripheral surface portion of a fitting structure between a magnetic ring and a rotor are fitted in an integrally rotatable manner via an interference fit, and deformation of a fitting member undergoing said fitting is suppressed by means of a simple structure. The present invention has: a plurality of interference-fit regions (FA1, FA2) where rotor-side peripheral surface portions (21d-21g) and a magnetic ring-side peripheral surface portion (12a) make contact in the radial direction along the entire periphery thereof; and a gap region (GA) where the two kinds of peripheral surface portions (21d-21g and 12a) radially face each other, without making contact, between the interference-fit regions (FA1, FA2). At least one of the two kinds of peripheral surface portions has a peripheral groove (21f) that forms the gap region (GA), and the two kinds of peripheral surface portions are fitted together with the peripheral groove (21f) remaining empty.
Provided is an economical bearing device in which the state of a rolling bearing can be detected by a wireless sensor unit. A bracket (3) is fixed to a first bearing race (6) of a rolling bearing (1). The bracket (3) is joined to one of two side surfaces (6c) that define the width of the first bearing race (6). The wireless sensor unit (2) has: a substrate (12) with a sensor and a wireless communication circuit (14); and a power source (15). The wireless sensor unit (2) is detachably fastened to the bracket (3) through a screw member (4).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
F16C 19/52 - Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
Provided is a wheel bearing device that can further reduce weight while increasing rigidity. A wheel bearing device 1 comprises: an outer ring 2 having a double row of outer raceway surfaces 23, 24; an inner member (hub ring 3 and inner ring 4) having a double row of inner raceway surfaces 33, 41 opposing the double row of outer raceway surfaces 23, 24; and double ball rows 5, 6 accommodated between both raceway surfaces of the inner member and the outer ring 2 in a manner allowing rolling. The pitch diameter b of balls 7 in the ball rows 5, 6, and the pitch a between an outer side ball 7 and an inner side ball 7 in the ball rows 5, 6 satisfy the relationship b/a≥2.0.
F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
F16C 33/78 - Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
A bearing device 1 for a vehicle wheel comprises an outer ring 2 having a double row of outer raceway surfaces 2c, 2d on the inner circumference, a hub ring 3 and an inner ring 4, having a double row of inner raceway surfaces 3d, 4a, and a plurality of tapered rollers 51, the inner raceway surfaces 3d, 4a being integrally formed with large flange sections 3e, 4b that come into sliding contact with large-diameter-side end surfaces 51a of the tapered rollers 51, wherein the large flange sections 3e, 4b have an arithmetic mean roughness Ra of 0.08 μm or less, and a base oil of grease to be filled in the space surrounding the tapered rollers 51 has a kinematic viscosity at 40° C. of 40 to 80 mm2/s.
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
The depth, relative to a surface, of an application surface of a first substrate for cell tissue formation is measured. Prior to the supply of a cell tissue to the first substrate, at least one application section, which is a section of the application surface of the first substrate, is subjected to first trial application (S3) with a first application liquid. In the step (S3) for the first trial application, the first application liquid is applied (S3-1) to the one application section using a first pressing amount of an application needle, said first pressing amount corresponding to the depth. A first measurement step (S3-3) for measuring the diameter of the first application liquid is performed.
B05D 3/00 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
The present invention provides a grease composition for a constant-velocity joint, the composition containing (a) a base oil, (b) a diurea thickener represented by formula (1), R1642644-p-NH-CO-NHR10(1) (in the formula, R1and r10 independently are octyl, decyl dodecyl, tetradecyl, hexadecyl, octadecyl, oleyl, or cyclohexyl.), (c) a molybdenum dialkyldithiocarbamate, (d) a zinc dialkyldithiophosphate, and (e) a zinc sulfonate.
C10M 169/06 - Mixtures of thickeners and additives
C10M 115/08 - Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof containing nitrogen
C10M 135/10 - Sulfonic acids or derivatives thereof
C10M 135/18 - Thio-acidsThiocyanatesDerivatives thereof having a carbon-to-sulfur double bond thiocarbamic type, e.g. containing the groups
C10N 50/10 - Form in which the lubricant is applied to the material being lubricated semi-solidForm in which the lubricant is applied to the material being lubricated greasy
79.
MAGNETIZATION DEVICE FOR MAGNETIC ENCODER, MAGNETIZATION METHOD, AND MAGNETIC ENCODER
Provided are: a magnetization device for a magnetic encoder with which the structure of a magnetization yoke can be simplified and a magnetic encoder having a double-row magnetic track can be magnetized with high accuracy; a magnetization method; and a magnetic encoder. A magnetization device of a magnetic encoder (1) magnetizes a double row of adjacent non-magnetized magnetic tracks (4) by using a magnetization yoke (11) which opposes the magnetic tracks with a gap δ therebetween. A distal end portion (18) of the magnetization yoke (11) is offset in the Z direction, which is the direction in which the rows of the double-row magnetic tracks (4) are aligned, with respect to a boundary portion (BL) of the adjacent magnetic tracks (4), and the distal end portion (18) of the magnetization yoke (11) is relatively moved in a circumferential direction with respect to the magnetic tracks (4) opposing the magnetization yoke (11), and the magnetic tracks (4) are thus magnetized in each row.
H01F 13/00 - Apparatus or processes for magnetising or demagnetising
G01D 5/245 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
80.
BALL BEARING WITH AN OUTER RING-GUIDED CAGE AND AN ECCENTRIC ROTATION DEVICE
A ball bearing with an outer ring-guided cage is provided. The outer ring-guided cage is a crown-shaped resin cage including a circular annular portion disposed radially inward of one of outer ring groove shoulders so as to be opposed to the one outer ring groove shoulders; and a plurality of pillars having a cantilevered structure, and axially extending from the circular annular portion. The circular annular portion has, on its outer periphery, an outer ring guiding surface that comes into sliding contact with the one outer ring groove shoulder. Each pillar includes an outer ring guiding protrusion that comes into sliding contact with the other outer ring groove shoulder.
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
81.
SEALING DEVICE, SPINDLE DEVICE, GRINDING DEVICE, AND CUTTING DEVICE
Provided is a sealing device for sealing a fluid passage for fluid ejection provided at an axial end portion of a housing for rotatably supporting a rotary shaft. A sealing member having a lip part that closes the fluid passage when the rotary shaft is in a stationary state and that opens the fluid passage when the rotary shaft is rotating is included. Due to at least one of the centrifugal force from rotation of the rotary shaft and the pressing force of a fluid, the lip part is separated from a pressure contact part where the lip part is brought into pressure contact with the housing, thereby opening the fluid passage and allowing the fluid to be ejected from both axial end portions of the housing. The sealing member includes a body part composed of a ring member, and the ring-shaped lip part continuously provided from the body part via a circumferential recessed groove. The lip part is received in the circumferential recessed groove of the sealing member, and a deformation suppression ring for preventing excessive deformation from the pressure contact part when the rotary shaft is rotated is fitted with the sealing member.
B24B 55/06 - Dust extraction equipment on grinding or polishing machines
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
F16C 35/12 - Rigid support of bearing unitsHousings, e.g. caps, covers for spindles with ball or roller bearings
F16J 15/3204 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
82.
SINTERED OIL-IMPREGNATED BEARING AND FLUID DYNAMIC PRESSURE BEARING DEVICE
The present invention comprises a radial dynamic pressure generation part in which a step surface having axial-direction grooves which have rectangular cross sections and are disposed at predetermined intervals along the circumferential direction is formed on the inner diameter surface of a bearing hole. The rectangularity of the axial-direction grooves calculated from a shape obtained by linearly expanding the roundness of the step surface measured by least squares centering is at most 0.025, and the flatness of hill parts between the axial-direction grooves adjacent to each other in the circumferential direction is at least 0.80. Rectangularity is an index that approaches 0 as the similarity of a shape to a rectangle increases, and flatness is an index that approaches 1 as the number of flat parts increases.
Provided is an angular ball bearing configured to have an increased number of balls and capable of preventing a decrease in the strength of the entire retainer including a column part. An angular ball bearing (1) is provided with an inner race (2), an outer race (3), a plurality of balls (4) interposed between the inner race (2) and the outer race (3), and an annular retainer (5) having pockets (Pt) for retaining the balls (4). In the retainer (5), each of the pockets (Pt) includes annular parts (7, 8) and a column part (6). The retainer (5) is configured so that the inside diameter or the outside diameter of the column part is in the range of 8% to 50% inclusive of the ball diameter (φDa) from the pitch circle center (P4) of the balls (4). Further, T/dp × 100 is in the range of 0.40 to 1.50 inclusive, where dp denotes the pitch circle diameter of the balls (4), and T denotes the dimension of a part having the narrowest column width in the circumferential direction of the column part (6).
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
This rolling bearing (1) comprises an inner ring (2), an outer ring (3), a plurality of balls (5), and a retainer (6) in which pockets (12) for holding the balls (5) are formed. The retainer (6) includes: a plurality of pocket wall parts (13) arranged at regular intervals in the circumferential direction; and a plurality of connecting parts (14) that connect the pocket wall parts (13, 13) adjacent to each other in the circumferential direction. Each of the pocket wall parts (13) is provided with an evacuation part (EP) that loses contact with the ball (5) when the retainer (6) moves relative to the balls (5) in the axial direction. A contact surface (Cf) of the pocket wall part (13) in contact with the ball (5) is asymmetric with respect to a plane passing through a pocket center (PO) of each of the pockets (12) and the rotation axis of the retainer (6).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
An energization unit (1) has an annular case body (7) that has conductivity, an energization member (8) that has conductivity and that protrudes inward, in the radial direction, from the case body (7), and an elastic member (9) that biases the energization member (8) inward in the radial direction. A guide part (14) for guiding the slide of the energization member (8) in the radial direction is formed in the case body (7), and the bearing unit (A) has the energization unit (1) and the bearing (2).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
H01R 39/12 - Slip-rings using bearing or shaft surface as contact surface
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
H02K 11/40 - Structural association with grounding devices
Provided is a rotary machine in which the shaft and the housing are electrically connected by a first conductive path provided at one end of the shaft and a second conductive path provided in the housing, wherein the first conductive path (40) has a planar electrode portion (43) extending in the radial direction from the rotational center (on a line CA1) of the shaft (10) in order to, even when the position of the contact point between the first conductive path and the second conductive path is deviated from the rotational center of the shaft, suppress wear and torque loss of the contact point. The second conductive path (50) has: an attachment portion (51) that is fixed to the housing (20); a spring portion (52) that protrudes in the axial direction from the attachment portion (51) to the planar electrode portion (43); and a curved surface electrode portion (53) that is supported by the spring portion (52) in a state of being in contact with the planar electrode portion (43) at one point and being movable in the radial direction on the planar electrode portion (43).
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
87.
ROLLING BEARING AND ROLLING ELEMENT FOR ROLLING BEARING
In the present invention, a rolling element for a rolling bearing and a rolling bearing comprising the same are provided. A rolling element (3) has a surface micro-Vickers hardness of 820 Hv0.1 to 930 Hv0.1, a surface roughness (Ra) of 0.01 µm to 0.05 µm, a skewness (Rsk) of -4.0 µm to 0.0 µm, a maximum profile height (Rt) of 0.7 µm or less, and an absolute value of the ratio (Ra/Rsk) of the surface roughness (Ra) to the skewness (Rsk) of 5.0 or less.
C22C 38/40 - Ferrous alloys, e.g. steel alloys containing chromium with nickel
F16C 19/26 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
88.
INSULATED ROLLING BEARING AND PRODUCTION METHOD FOR INSULATED ROLLING BEARING
An insulated rolling bearing (1) has an inner ring (2), an outer ring (3) that is coaxially provided on the outside in the radial direction of the inner ring (2), a plurality of rolling bodies (4) that are provided between the inner ring (2) and the outer ring (3), and an insulation layer (6) that comprises a heat-shrinkable resin and is adhered to an outer radial surface of the outer ring (3). A production method for the insulated roller bearing (1) includes a heat-shrinkable tube provision step for inserting a rolling bearing that has an inner ring (2), an outer ring (3) that is coaxially provided on the outside in the radial direction of the inner ring (2), and a plurality of rolling bodies (4) that are provided between the inner ring (2) and the outer ring (3) into a tube of a heat-shrinkable resin that has not yet been heat-shrunk and a heat-shrinkable tube heating step for heating the tube of the heat-shrinkable resin to heat-shrink the heat-shrinkable resin and form an insulation layer (6) that comprises the heat-shrinkable resin and is adhered to an outer radial surface of the outer ring (3).
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
An inner ring 12 has a cylindrical surface-shaped inner circumferential surface 18. In each of a longitudinal cross section including an axial line of a leg shaft 32 and a transverse cross section orthogonal to the axial line of the leg shaft 32, an outer circumferential surface 33 of the leg shaft 32 has a convex curve that is bulged to both sides in the torque transmission direction. The convex curve in the transverse cross section of the outer circumferential surface 33 of the leg shaft 32 increasingly separates from the cylindrical surface-shaped inner circumferential surface 18 of the inner ring 12 moving from a torque transmission part toward both sides in the joint axial direction. Of the convex curve in the longitudinal cross section of the leg shaft 32, a curvature radius R of the torque transmission part is made larger than a curvature radius r of the torque transmission part in the convex curve in the transverse cross section of the leg shaft. If a journal diameter of the leg shaft 32 is defined as DJ, of the convex curve in the longitudinal cross section of the leg shaft 32, the curvature radius R of the torque transmission part is defined as R ≥ DJ×0.62, and of the convex curve in the transverse cross section of the leg shaft 32, the curvature radius r of the torque transmission part is defined as r ≥ DJ×0.42.
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
In a double roller-type tripod constant velocity universal joint 1, an outer ring 11 serving as a roller has a cylindrical outer circumferential surface 15, and a pair of roller guide surfaces 16 of individual track grooves 5 are formed as flat surfaces parallel to each other. A pair of guide surfaces 7 are provided to both sides in the width direction of the roller guide surfaces 16. The guide surfaces 7 are formed as tapered surfaces inclined with respect to a transverse plane orthogonal to the axis of a leg shaft 32, and a guided surface 17 of the outer ring 11 guided by the guide surfaces 7 is formed as a convex arc surface capable of point contact with the guide surfaces 7. An inner ring 12 has a cylindrical inner circumferential surface 18, and the outer circumferential surface of the leg shaft 32 has a convex curve that curves outward on both sides in a torque transmission direction X in a longitudinal plane and a transverse plane. The convex curve of the outer circumferential surface of the leg shaft 32 in the transverse plane separates from the inner circumferential surface 18 of the inner ring 12 from an end section in the torque transmission direction X toward both sides in a joint axial direction Z, and the curvature radius r at both ends in the torque transmission direction X in the convex curve of the outer circumferential surface of the leg shaft 32 in the longitudinal plane is larger than the curvature radius R at both ends in the torque transmission direction X in the convex curve of the outer circumferential surface of the leg shaft 32 in the transverse plane.
F16D 3/205 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
A slide bearing (1) comprises an inner ring (2) that is an annular body that is continuous in the circumferential direction and an outer ring (3) that is an annular body that is continuous in the circumferential direction. An inner circumferential surface of the outer ring (3) has an annular protruding curved surface (3a) that protrudes inward in the radial direction. An outer circumferential surface of the inner ring (2) has an annular recessed curved surface (2a) that is recessed inward in the radial direction. The recessed curved surface (2a) of the inner ring (2) engages the protruding curved surface (3a) of the outer ring (3) and can slide relative to the protruding curved surface (3a) of the outer ring (3) in the circumferential direction.
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B22F 10/12 - Formation of a green body by photopolymerisation, e.g. stereolithography [SLA] or digital light processing [DLP]
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 80/00 - Products made by additive manufacturing
A roller bearing (1) is provided with a plurality of rollers (3) and a retainer (2) for holding the rollers (3). The retainer (2) has a pair of annular parts (4, 4) facing both axial-direction ends of each roller (3), and a plurality of column parts (5) installed across the outer diameter parts of the pair of annular parts (4, 4) and provided at regular intervals in the circumferential direction. The retainer (2) has a welded part (We) in which one location in the circumferential direction in each annular portion (4) is connected by welding. The inner-diameter part of each annular part (4) is provided with a roller-retaining claw (6) that prevents the roller from slipping out to the inner-diameter side of the retainer. The roller-retaining claws (6) are bent piece-shaped roller-retaining claws provided in the portions between adjacent rollers (3, 3) in the inner-diameter parts of the annular parts (4).
F16C 19/26 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
122 offset 110°–160° and 290°–340° to the one side in the circumferential direction with respect to the straight line SL are defined as pockets that belong to a second group, the minimum value δmin of the circumferential clearance Gb1 between the balls 4 and the pocket formation surfaces 7 that form the pockets 6 that belong to the first group is at least 0.1 mm greater than the maximum value δmax of the circumferential clearance Gb2 between the balls 4 and the pocket formation surfaces 7 that form the pockets 6 that belong to the second group.
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
This reverse input blocking clutch has an input member to which torque is input, an output member from which torque is output, a first brake member and second brake member which are capable of reciprocating motion in the radial direction, and a stationary member which is disposed radially outward from the first brake member and second brake member. The present invention comprises a separating movement mechanism for moving the first brake member and second brake member in a direction separating from the stationary member using the input of torque to the input member, and a transmission mechanism for transmitting the torque input to the input member to the output member in a state in which the first brake member and second brake member are separated from the stationary member. Reverse input of torque to the output member causes the first brake member and second brake member to move in directions separating from one another in the radial direction, and the transmission of the torque from the output member to the input member is blocked.
F16D 41/10 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing
A lubricating-oil composition for a fluid-dynamic bearing, which is to be used for a fluid-dynamic bearing (8) including radial dynamic pressure generating portions (A1, A2) provided on an inner peripheral surface (Sa) of a porous body, has the following makeup. That is, a base oil having a kinematic viscosity of more than 30 mm2/s and 80 mm2/s or less at a temperature of 40° C. is used as a base oil of the lubricating-oil composition, and the makeup of the lubricating-oil composition is adjusted so that the lubricating-oil composition has a kinematic viscosity of 90 mm2/s or more and 140 mm2/s or less at a temperature of 40° C.
F16C 32/06 - Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
97.
SPINDLE DEVICE, GRINDING DEVICE, AND CUTTING MACHINING DEVICE
This spindle device is provided to a rotary shaft that can have a load mounted on the tip end thereof, a housing that supports the rotary shaft with a bearing therebetween, and the rotary shaft. The spindle device comprises: an impeller that draws outside air into the device from the rear end side of the device as the impeller rotates around the axial center of the rotary shaft and that discharges the drawn-in air from the device tip end side; and a seal device that is arranged between the housing and the rotary shaft on the device tip end side. The seal device seals a space between the housing and the rotary shaft on the device tip end side when the rotary shaft is stationary or in low-speed rotation, and allows discharge of the air from the device tip end side at at least a prescribed rotational speed at which the speed of the rotary shaft exceeds the speed during the low-speed rotation.
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B23B 19/02 - Working-spindlesFeatures relating thereto, e.g. supporting arrangements
B24B 55/06 - Dust extraction equipment on grinding or polishing machines
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
A rolling component which comprises a planetary gear (1) corresponding to the outer ring of a rolling bearing, a shaft (2) corresponding to the inner ring, and rolling elements (3) is configured such that: the micro-Vickers hardness from the surface to a depth of 25 μm is 800-930 Hv0.1; the absolute value of a compressive residual stress on the surface is 850 MPa or more; and the full width at half maximum of the surface X-ray diffraction is 6.0-6.7°. This rolling bearing is configured to use said rolling component.
This gripping device (1) comprises: a gripping claw unit (3); a gripping mechanism (4) that supports the gripping claw unit (3) so the gripping claw unit can operate in an opening/closing direction (C1), and that rotates about a rotation axis (C) parallel to the opening/closing direction (C1); an opening/closing driving source (5) that opens/closes the gripping claw unit (3); and a rotation driving source that rotates the gripping claw unit (3) around the rotation axis (C). The gripping claw unit (3) has a pair of gripping claws (8, 8) and a gripping claw coupling mechanism (25) for coupling portions of the gripping claws (8, 8). The gripping mechanism (4) includes: a swinging rotation shaft (17) that supports one of the gripping claws (8) and rotatably supports the entire gripping claw unit so that the gripping claw unit can swing about the rotation axis (C); and an opening/closing mechanism (9) including linear movement elements (11, 11) that allow the pair of gripping claws (8, 8) to move freely in the opening/closing direction (C1). The linear movement elements (11, 11) and the swinging rotation shaft (17) cooperate to open and close the pair of gripping claws (8, 8) by means of the opening/closing driving source (5).
To provide a sealing resin composition and a seal that are capable of being used, in particular, in high temperature and high pressure gas, in particular hydrogen gas. A sealing resin composition is used in a piston ring 1 for sealing gas. When a molded body of the sealing resin composition is exposed to gas with a pressure of 82 MPa and a temperature of 200° C. for 192 hours, a dimensional change rate of the molded body relative to the molded body before the exposure is +1.0% or less, a retention rate of the tensile strength of the molded body after the exposure is 80% or more as the tensile strength of the molded body before the exposure is defined as 100%. The tensile strength of the molded body of the sealing resin composition is 100 MPa or more by a measuring method based on ASTM D638.
