Axial cages for cylindrical rolling elements

Abstract

The invention relates to an axial cage (1) for cylindrical rolling elements, which consists essentially of a thin-walled annular disk (2) with a W-shaped profile cross-section, formed to an annular The inner radial edge (3) on the inner edge of the disc (2), the outer radial edge (4) formed onto the outer edge of the annular disc (2) and through the inner axial profile section and the outer axial profile section (5,6) The central U-shaped crimp (7) connected to the radial rim (3,4) and having the same radial extension as the rim (3,4) forms the axial cage contour segments of . In this case, a plurality of rectangular cage pockets (8) evenly spaced from one another result from the central bead (7) and the adjoining axial profile sections (5, 6), between which cage pockets Form the same number of pocket webs (9) connecting the edges (3, 4) to each other, which hold the cylindrical rolling elements (10) at an even distance from each other in the cage pockets (8) , and guide these cylindrical rolling elements in the direction of rotation. According to the invention, the axial cage (1) is characterized in that the outer radial edge (4) is configured with an angle of inclination (α) pointing away from the central U-shaped curl (7), and that the cage pockets (8) have an axial length greater than the minimum axial distance between the inner side (11, 12) of the inner radial edge and the outer radial edge (3, 4), so that the cage pocket (8) is at least Extends into the outer radial edge (4) of the axial cage (1) and is formed in the axial cage ( 1) is formed on the outer radial edge (4) at the height of the rolling axis of the rolling element (10) with a rounded thrust projection (14) for the outer end side (15) of the rolling element (10) ).

Description

technical field [0001] The invention relates to an axial cage for cylindrical rolling elements and can be realized particularly advantageously on an axial cage for axial needle roller bearings. Background technique [0002] Known from DE 1 174 113 B1 is an axial cage of this type for axial needle roller bearings, which consists essentially of a thin-walled annular disk with a W-shaped profile cross-section, formed by forming The inner radial edge to the inner edge of the annular disk, the outer radial edge formed on the outer edge of the annular disk and connected to the radial edge by the inner axial profile section and the outer axial profile section and with the same edge The central U-shaped turn-up of that same radial extension forms the individual contour sections of the annular disk. In this case, the central bead and the adjoining axial contour sections result in a plurality of rectangular cage pockets evenly spaced apart from one another, between which cage pockets...

AI Technical Summary

Problems solved by technology

[0007] However, this solution has also proven to have the disadvantage that the wedge-shaped sheet-metal projections are arranged on the inner and outer axial contour sections of the axial cage to be additionally shaped and, in addition to using In addition to the increased manufacturing costs of the axial cage, this additional axial profile section also requires an increase in the axial installation space of the axial cage, which in many cases cannot be provided

In addition, the central U-shaped turn-up in the pocket web, which extends radially outwards via the inner axial contour section and the outer axial contour section due to the special contour of the axial cage, also leads to technical Manufacturing problems, since after separation from the sheet metal strip, such axial cages are usually stored in collection containers for transport to their final processing location

Here, however, due to the U-shaped curls of the undeburred pocket web protruding freely outwards from the inner axial contour section and the outer axial contour section, the danger arises that the axial cage Hook together with their pocket lugs in the collection container

In order to ensure a reliable further processing of the axial cage, this risk can therefore only be avoided with an additional stacking device, which likewise increases the production costs of such an axial cage

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