Ball roller bearing

Abstract

The invention relates to a ball roller bearing (1) comprising a plurality of ball rollers (4) arranged between an outer bearing ring (2) and an inner bearing ring (3) and each of which comprises two parallel lateral surfaces (5, 6) and rolls, with their running surfaces (7) extending between said lateral surfaces (5, 6), in two groove-shaped raceways (10, 11) worked into the inner side (8) of the outer bearing ring (2) and the outer side (9) of the inner bearing ring (3), and which are held within individual cage pockets (12) of a bearing cage (13). The bearing cage (13) comprises two interconnected lateral rings (15, 16) and two cage ribs which are connected thereto and in guiding contact with said lateral surfaces (5, 6) for the purpose of axially guiding the ball rollers (4). According to the invention, the bearing cage (13) comprises a cylindrical main part (17) consisting of the lateral rings (15, 16) and pocket webs (14) and made of a cold-formable deep drawn steel, said cage ribs being formed from two separate rib rings (18, 19) which consist of a thermally-treated carbon steel and are force and / or form-fittingly connected to the main part (17).

Description

technical field [0001] The invention relates to a single-row ball roller bearing according to claim 1 forming the features of the preamble, which can be used particularly advantageously, for example, as a stationary bearing for an input shaft or an output shaft of a motor vehicle transmission. Background technique [0002] Ball roller bearings are rolling bearings with special rolling elements designed as ball rollers, which, proceeding from a spherical basic shape, have in each case two side faces that are flattened from this spherical basic shape and are arranged parallel to each other, at which The working surfaces of the ball rollers are respectively arranged between the two side surfaces. Ball roller bearings of this type are generally known in very different embodiments as single-, double-, triple- or quadruple-row radial or angular contact ball roller bearings, and due to the special rolling element shape A special cage embodiment is required in order on the one hand...

AI Technical Summary

Problems solved by technology

In addition, during the operation of the bearing, at the point of contact between the sides of the ball rollers and the ribs of the cage, there is increased wear on the ribs of the cage due to material extrusion and material stripping. Due to this wear, The ball rollers are no longer guided correctly in the axial direction on both sides and thus tend to lead to increased pivoting and to-and-fro movements

This oscillating and to-and-fro movement of the ball rollers then increases the friction and thus the bearing temperature, which is accompanied by increased bearing wear and ultimately leads to failure of the ball roller bearings

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