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Multi-row symmetrical rolling bearing

A technology for rolling bearings and bearings, which is applied in the direction of rolling contact bearings, rotating bearings, bearings, etc. It can solve the problems that rolling bearings are not suitable for large axial loads, complex manufacturing of rolling bearings, and high frictional torque, etc., to reduce assembly costs Effect

Inactive Publication Date: 2009-03-04
SCHAEFFLER KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In this respect, the use of balls in such double row rolling bearings is disadvantageous, since these rolling bearings are not suitable for high axial loads
The use of tapered rollers in double train wheel bearings has the disadvantage that high frictional moments result from this
[0005] Rolling bearings with more than two rows are relatively complex to manufacture and, moreover, appropriate geometric dimensions must be determined during manufacture

Method used

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  • Multi-row symmetrical rolling bearing

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Embodiment Construction

[0030] The rolling bearing shown in FIG. 1 has four rows 11 , 12 , 13 and 14 in which rolling bodies 5 are respectively arranged. Here, the rolling bodies 5 are each arranged in a ring and extend in a plane perpendicular to the drawing. The individual rolling elements 5 can extend in a bearing cage (not shown in detail). For the sake of simplicity, only one bearing half is shown in FIGS. 1 and 2 .

[0031] As shown in FIG. 1, the individual rows 11, 12, 13 and 14 have different pitch circle diameters Tk1, Tk2, Tk3 and Tk4, which, as mentioned at the beginning, range from the center of a rolling body to the center of an opposite The distance from the center of the rolling body to the rolling body is obtained.

[0032] In the embodiment shown in FIG. 1 , the pitch circle diameters Tk1 , Tk4 of the two rows 11 and 14 are larger than the pitch circle diameters of the rows 12 and 13 . The pitch circle diameters of columns 11 and 14 are equal, and the pitch circle diameters Tk2 a...

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Abstract

The invention relates to a rolling bearing (1) having a first bearing ring (2), a second bearing ring (3) and a plurality of rolling bodies (5) which are arranged between the first bearing ring (2) and the second bearing ring (3). Here, the rolling bodies (5) are arranged in at least four rows (11, 12, 13, 14), at least two rows (11, 14) have a first reference diameter (Tk1, Tk4), at least two further rows (12, 13) have a second reference diameter (Tk2, Tk3) which is different from the first reference diameter (Tk1, Tk4), and those rows which have in each case the same reference diameter are arranged symmetrically with respect to a predefined plane (ME) which is aligned perpendicular to a longitudinal direction (LR) of the bearing.

Description

technical field [0001] The invention relates to a symmetrical rolling bearing, in particular to a multi-row symmetrical rolling bearing. Background technique [0002] The invention is described with reference to a wheel bearing unit for a drive wheel or a non-drive wheel of a motor vehicle such as a pickup truck, light truck or sports utility vehicle (SUV). It is pointed out, however, that the invention can also be used in other rolling bearings. [0003] Rolling bearings are known from the prior art, which have an outer ring, an inner ring and rolling bodies arranged between the rings. It is also known from the prior art that the rolling bodies are arranged in several rows. A two-row rolling bearing is known, for example, from DE 100 60 638 A1. In this way, the load acting on the bearing can be distributed over several rows of rolling elements and thus over several rolling elements. [0004] In this regard, the use of balls in such double row rolling bearings is disadva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/18F16C19/50B60B27/00
CPCF16C19/182F16C2326/02B60B27/0005B60B27/0084B60B27/0026F16C19/505F16C19/184F16C2240/80B60B27/00F16C19/18F16C19/50F16C33/58
Inventor C·莫克P·尼布林R·海斯
Owner SCHAEFFLER KG