Abstract

The present invention relates to a bearing having flange with an arc-shaped asymmetrical removal portion, including a flange in which an arc-shaped asymmetrical removal portion is formed at one side of a circular plate, in which a plurality of bolt fastening holes are formed in an edge in a spaced-apart relationship along with a circumferential direction and in which one or more axially-penetrating hole portions are formed in positions circumferentially spaced-apart from the arc-shaped asymmetrical removal portion. The bearing has an effect of suppressing generation of an eccentric centrifugal force during a machining process, preventing machining defects otherwise generated by the eccentric centrifugal force, and suppressing a loosening phenomenon of bolts fastened to the flange when in use.

IPC Classes  ?

• F16C 33/62 - Selection of substances
• F16C 33/64 - Special methods of manufacture
• 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
• B21K 1/02 - Making machine elements balls, rolls, or rollers, e.g. for bearings
• C21D 1/26 - Methods of annealing
• B23P 15/00 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Abstract

A flanged bearing made of high-carbon chromium steel includes: inner rings 110; an outer ring 130, a flange portion 170, rolling elements 150, and a retainer, wherein the inner rings 110 are annularly formed to extend in a circumferential direction and are provided on their radial outer surfaces with inner ring raceways extending in the circumferential direction, the outer ring 130 is annularly formed to extend in the circumferential direction and is provided on its radial inner surface with an outer ring raceway extending in the circumferential direction, the flange portion 170 is provided in the inner rings 110 or the outer ring 130 and is formed in a plate shape to extend in the circumferential direction, the rolling elements 150 are arranged between the inner rings 110 and the outer ring 130 and are spaced apart in the circumferential direction by the retainer, the retainer is provided between the inner rings 110 and the outer ring 130 and is provided so that the rolling elements 150 are spaced apart in the circumferential direction, and the flange portion 170 is heat treated so as to have a hardness which is in the range of HV 240 to HV 280.

IPC Classes  ?

• F16C 33/62 - Selection of substances
• F16C 33/64 - Special methods of manufacture
• 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
• B21K 11/02 - Making cutlery waresMaking garden tools or the like knives
• C21D 1/26 - Methods of annealing
• B23P 15/00 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Goods & Services

(1) Bearings (parts of machines) and their parts and accessories; bearings for ships and airplanes and their parts and accessories. (2) Bearings for land vehicles and their parts and accessories. (3) Bearings (parts of machines), bearing for ships and airplanes and bearings for land vehicles.

Goods & Services

Bearings (parts of machines), and their parts and accessories; bearings for ships and airplanes, and their parts and accessories; bearings for land vehicles, and their parts and accessories.

Goods & Services

Bearings for land vehicles, and parts and accessories thereof

Goods & Services

machine parts, namely bearings