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Method for producing a tapered roller assembly, tapered roller assembly and tapered roller bearing

A tapered roller bearing, tapered roller technology, applied in the direction of roller bearings, shafts and bearings, rolling contact bearings, etc., can solve problems such as cracks and weakening of small flanges

Inactive Publication Date: 2018-03-27
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And there can also be additional defects in the material of the inner ring, such as cracks or folds, which lead to further weakening of the turned-over small flange

Method used

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  • Method for producing a tapered roller assembly, tapered roller assembly and tapered roller bearing
  • Method for producing a tapered roller assembly, tapered roller assembly and tapered roller bearing
  • Method for producing a tapered roller assembly, tapered roller assembly and tapered roller bearing

Examples

Experimental program
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Embodiment Construction

[0039] figure 1 On the right is shown a flow chart with a number of steps for producing the tapered roller component set 1 . On the left, a half-sectional view of an initial or intermediate product for producing the tapered roller component assembly 1 is schematically shown.

[0040] By way of example, the method can start from a ring disk 2 produced from a preferably hardenable steel. The annular disk 2 is designed as a flat disk body and can be separated, for example, from a disk blank. In step 100, which is designed as a reforming phase, the annular disc 2 is reformed by cold extrusion into an inner ring 3, wherein the inner ring 3 has a fixed edge 4, a conically extending raceway 5 and an axially extending Border area 6. The edge region 6 is formed as a hollow cylindrical end section of the inner ring 3 .

[0041] For example, the inner ring 3 can be produced in the reforming device 7 in the state after step 100, as it was in figure 2 shown schematically in half-sect...

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Abstract

Tapered roller bearings have in many design forms an inner ring, an outer ring and a plurality of tapered rollers which are arranged to roll between the inner ring and outer ring. It is the object ofthe present invention to propose a method for producing a tapered roller assembly which can be mounted in a particularly simple manner. For this purpose, a method for producing a tapered roller assembly (1) having an inner ring (3) and a roller ring (12) is proposed, wherein the method comprises the following steps: a) providing the inner ring (3), wherein the inner ring (3) has a flanged mountingrim (10) which is produced within a preliminary flanging stage by flanging over an edge region (6) of the inner ring (3); b) mounting the roller ring (12) on the inner ring (3), wherein the roller ring (12) is pushed over the flanged mounting rim (10) onto the inner ring (3); c) flanging over the flanged mounting rim (10) into a flanged rim (15), wherein the flanged rim (15), as a retaining rim,captively retains the roller ring (12); and d) heat-treating the flanged mounting rim (10) before step b) or step c), wherein a hardness of the flanged mounting rim (10) is reduced by comparison witha hardness of a raceway (5) of the inner ring (3). Also proposed is a tapered roller bearing (20) formed with such a tapered roller assembly (1).

Description

technical field [0001] The invention relates to a method for manufacturing a tapered roller assembly, wherein the method comprises the steps of: providing an inner ring, wherein the inner ring has a beaded fit edge; fitting a roller and cage assembly to the inner ring , wherein the roller and cage assembly is fitted onto the inner ring through the hemming assembly edge; and the hemming assembly edge is turned into a hemming edge, wherein the hemming edge is used as a retaining edge to hold the roller and retain shelf components. In addition, the present invention also relates to a tapered roller assembly manufactured by the method, and to a tapered roller bearing formed using the tapered roller assembly. Background technique [0002] Tapered roller bearings in many configurations have an inner ring, an outer ring and a plurality of tapered rollers arranged rolling between the inner ring and the outer ring. These tapered rollers are often guided in cages. The production of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/36F16C33/64F16C43/08F16C19/22
CPCF16C43/086F16C19/225F16C19/364F16C33/64F16C33/585B21K1/04B21D53/10B23P15/003F16C2223/10F16C33/586F16C43/04
Inventor 马库斯·曼陶赖因哈德·基克-罗登比歇尔安德烈·沙德
Owner SCHAEFFLER TECH AG & CO KG
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