Bearing shell for half-shell bearing, and half-shell bearing and use thereof

Abstract

The invention relates to a bearing shell (1; 1a, 1b) for a half-shell bearing (100), said bearing shell (1; 1a, 1b) having, on a first side (2), at least one raceway (2a) for rolling elements (4), wherein the bearing shell (1; 1a, 1b) is hardened in a hardening process, wherein the bearing shell (1; 1a, 1b) has a steel main body (5), and wherein the main body (5) has, on a second side (3) facing away from the first side (2), at least one coating (6) made of a coating material which is designed to form a diffusion barrier for carbon in the direction of the main body (5) in the region of the second side (3) during the hardening process. The invention also relates to a method for producing such a bearing shell (1; 1a, 1b), to a half-shell bearing (100) formed with the bearing shell (1; 1a, 1b), and to the use thereof.

Description

technical field [0001] The invention relates to a bearing shell for a half-shell bearing, which has at least one raceway for rolling bodies on a first side. The invention also relates to a method for producing such a bearing shell, a half-shell bearing and the use thereof. Background technique [0002] DE 10 2010 006 262 A1 describes a generic half-shell bearing for disc brakes in motor vehicles. at DE 10 2010 006 262 A1 figure 1 A typical loading situation for such a half-shell bearing is shown in . [0003] Bearing shells for half-shell bearings or half-shell needle roller bearings, in particular for disc brakes on commercial vehicles, usually consist of a cold-deformable strip-shaped base material, such as steel, which is usually case-hardened . Due to the high, almost static loads that occur in disc brakes, a limited high case hardening depth is usually chosen. [0004] The bearing housing is usually formed with lateral ribs, which are erected by rolling a strip-sha...

AI Technical Summary

Problems solved by technology

Thorough hardening leads to a marked reduction in the elasticity of the ribs, which can lead to rib breakage under axial loads

Furthermore, the comparatively high case-hardening depth in the region of the rib in relation to the material thickness leads to a reduction in the elasticity of the hooks and the anti-twist attachments arranged on the bearing housing, which must in part be achieved by an additional inductive tempering process to partially compensate

This aspect leads to increased costs due to the necessary additional processes

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