Radial anti friction bearing, in particular single-row spherical roller bearing, and method for mounting thereof

Abstract

The invention relates to a radial anti friction bearing (1) which is configured as a single-row spherical roller bearing, which comprises an outer bearing ring (2), an inner bearing ring (3) and a plurality of spherical rollers (5) that are arranged between said bearing rings (2, 3). Said spherical rollers have respectively two side faces (6, 7) which are flattened symmetrically from a spherical base shape, are retained with uniform spacing to each other by means of a bearing cage (4) and roll with their running faces (8) in two groove-shaped raceways (11, 12) which are defined, respectively, by two axial rims (13, 14 and 15, 16). The width (bK) of the spherical rollers (5) between their side faces (6, 7) is at least 70% of the diameter (dK) of their spherical base shape and as a result, is greater than the distance (aB) between the axial rims (13, 15 and 14, 16) of the raceways (11, 12) in the bearing rings (2, 3). According to the invention, the raceways (11, 12) in both bearing rings (2, 3) is embodied with an extremely enlarged depth (tLA, tLI) and width (bLA, bLI) such that the spherical rollers (5), also with variable axial loads, is in full linear contact with their running faces (8) to the raceways (11, 12) in the bearing rings (2, 3) at an operational pressure angle (alpha) of up to 25 DEG on both sides of the bearing longitudinal axis (17). The distance (aB) between the radially opposite axial rims (13, 15 and 14, 16) of the raceways (11, 12) in the bearing rings (2, 3) is so small that the distance (aBex), even when the bearing rings (2, 3) are arranged eccentrically to each other, is smaller than the diameter (dK) of the spherical base shape of the spherical rollers (5).

Description

technical field [0001] The invention relates to a radial rolling bearing suitable for relatively high axial loads according to the features of the preamble of claim 1 and to a method for mounting such a radial rolling bearing. The invention can be implemented particularly advantageously in For example, single-row spherical ball bearings are used as fixed bearings on the driving and driven shafts of automobile transmissions. Background technique [0002] As a radial rolling bearing that can withstand higher axial forces, single-row grooved ball bearings are used first in practice because of their uniform and high radial and axial load capacity, low wear and all bearings The highest rev limit of the class. Such grooved ball bearings usually consist of an outer bearing ring and an inner bearing ring and a plurality of rolling elements arranged between these bearing rings. In this case, groove-shaped rolling tracks, each delimited by two axial edges, are formed in the inner si...

AI Technical Summary

Problems solved by technology

However, the improvement of the axial bearing capacity of the bearing is underestimated, because although the rolling track of the spherical roller is deepened, in order to allow the spherical roller to completely move in its rolling track while matching the working pressure angle through the axial overturning effect ground support, the rolling track is still too flat, so this spherical roller bearing is still unsuitable for variable axial loads at extremely high operating pressure angles

Images