Thrust bearing

Abstract

A thrust bearing, wherein a cage (2) and inner and outer rings (3, 4) in non-quenched state are assembled with each other in the bearing formed integrally with rollers (1), and a carburizing and quenching, and tempering treatments are applied to the assembled bearing, whereby since the individual heat treatment for the cage (2) and the inner and outer rings (3, 4) can be eliminated, the heat treatment steps for the integral thrust bearing can be reduced.

Description

technical field [0001] The invention relates to a one-piece thrust bearing in which a track wheel and a retaining ring holding a roller form a non-separated structure. Background technique [0002] Among the thrust bearings, there is an integral type thrust bearing in which the rail wheel and the retainer for accommodating the rollers constitute a non-separable structure for easy assembly on the bearing chamber and the shaft. [0003] Figure 10 (a) and (b) show examples of such integral thrust bearings. This thrust bearing is a three-in-one type bearing having a retainer 2 accommodating a plurality of rollers 1 radially, an inner ring 3 having a flange 3 a on the inner diameter side, and an outer ring 4 having a flange 4 a on the outer diameter side. The outwardly protruding claws 5 and inwardly protruding claws 6 formed on the front ends of the flanges 3a and 4a respectively lock the inner and outer peripheral edges of the retainer 2, thus forming the inner and outer ring...

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned conventional integrated thrust bearing needs to heat-treat these components before assembling the track wheel, retainer, and roller into the bearing, so there is a problem that the number of heat-treatment steps increases, and the heat-treatment cost increases. , and in order to adjust the heat treatment process of each component, the manufacturing period is extended

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