Method for producing an inner ring for a tapered roller bearing, and tapered roller bearing having an inner ring

A technology of tapered roller bearings and tapered rollers, applied in the direction of roller bearings, rolling contact bearings, bearings, etc., can solve complex problems and achieve the effect of minimizing friction

Inactive Publication Date: 2018-02-13
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bearing ring of the tapered roller bearing is thus constructed as a complex component

Method used

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  • Method for producing an inner ring for a tapered roller bearing, and tapered roller bearing having an inner ring
  • Method for producing an inner ring for a tapered roller bearing, and tapered roller bearing having an inner ring
  • Method for producing an inner ring for a tapered roller bearing, and tapered roller bearing having an inner ring

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Embodiment Construction

[0032] figure 1 A tapered roller bearing 1 as an exemplary embodiment of the invention is shown along the main axis of rotation H in a schematic longitudinal half-section. The tapered roller bearing 1 has an inner ring 2 , an outer ring 3 and a plurality of tapered rollers 4 arranged between the inner ring 2 and the outer ring 3 in a rolling manner. The tapered roller bearing 1 is configured as a single-row tapered roller bearing. The tapered roller bearing 1 is designed in particular as a radial rolling bearing, wherein the pressure angle 5 is between 0 and 45 degrees.

[0033] The tapered roller 4 has a frustoconical shape with a conically curved running surface 6 . Furthermore, the tapered rollers 4 each have a small end side 7 and a large end side 8 . The axis of rotation 9 of the tapered roller 4 is arranged obliquely relative to the main axis H of rotation.

[0034] The outer ring 3 has a cylindrical outer surface 10 and a conical inner raceway 11 oriented radially inw...

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Abstract

Tapered roller bearings make it possible to deflect both radial loads and axial loads via a bearing. The aim of the invention is to propose a method for producing an inner ring for a tapered roller bearing which is cost-effective but at the same time leads to a sufficiently high quality of the inner ring. For this purpose, a method for producing an inner ring (2) for a tapered roller bearing (2) is proposed in which the inner ring (2) has a raceway portion (13) and a fixed edge portion (14), said method comprising the steps of: providing an inner ring blank (25), the inner ring blank (25) having an unfinished raceway portion (26) and an unfinished fixed edge portion (27), the unfinished fixed edge portion (27) having a larger outside diameter than the unfinished raceway portion (26), and the inner ring blank (25) having a through-opening (28); cold forming the inner ring blank (25) into the inner ring (2) by means of extrusion in a main forming step, wherein the unfinished fixed edge portion (27) is transformed into the fixed edge portion (14) and the unfinished raceway portion (26) is transformed into the raceway portion (13).

Description

technical field [0001] The invention relates to a method for producing an inner ring of a tapered roller bearing, wherein the inner ring has a raceway section and a fastening flange section. The invention also relates to a tapered roller bearing with an inner ring or an inner ring with the method. Background technique [0002] Tapered roller bearings make it possible to conduct radial and axial loads through the bearing. Tapered roller bearings typically have an inner ring, an outer ring, and tapered rollers arranged between the inner and outer rings. As the name implies, tapered rollers are constructed in the form of a truncated cone, wherein the sides of the cone circumference form the rolling surfaces of the rolling elements. [0003] In order to guide the tapered rollers, flanges are usually provided on the inner ring. The bearing ring of the tapered roller bearing is thus constructed as a complex component. [0004] For example, document DE 10 2011 00 47 06 A1 discl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D53/10F16C19/22F16C19/36F16C33/64
CPCB21D53/10F16C19/22F16C19/364F16C33/64B21D53/12F16C43/086F16C19/225F16C33/585F16C33/4605
Inventor 赖因哈德·基克-罗登比歇尔雷纳·艾德洛特马库斯·曼陶
Owner SCHAEFFLER TECH AG & CO KG
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