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Cylindrical roller bearing

A technology of cylindrical roller bearings and cylindrical rollers, applied in the field of rolling bearings, can solve problems such as high friction coefficient, large contact area, and large heat generation, and achieve the effects of reducing the contact area, reducing the friction coefficient of bearings, and small heat generation

Pending Publication Date: 2021-03-30
XIANGYANG AUTOMOBILE BEARING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bearing inner ring 1-02 or the outer ring 1-01 is in surface contact with the end face of the cylindrical roller 1-04, the contact area is large, the friction coefficient is high, the heat generation is large, and the bearing will be ablated under high-speed conditions. fail

Method used

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  • Cylindrical roller bearing
  • Cylindrical roller bearing
  • Cylindrical roller bearing

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] like Figure 3 to Figure 6 shown. An embodiment of a cylindrical roller bearing of the present invention includes an outer ring 2-01, an inner ring 2-02, a cylindrical roller 2-04 and a cage 2-46. Among them, the retainer 2-46 is the same as that in the prior art, the difference is that the ribs of the bearing outer ring 2-01 are oblique ribs with an angle α, and the ribs of the bearing inner ring 2-02 are ribs with an angle α The beveled side of the cylindrical roller 2-04 has a circular arc structure on the end face. The inner diameter of cylindrical roller bearings is 17~100mm.

[0023] There are two oblique ribs on the outer ring 2-01. The angle α formed by the inclined rib of the outer ring 2-01 is 0-2°. There can also be one inclined rib of the outer ring 2-01.

[0024] There are two inclined ribs of the inner ring 2-02. The angle α of the inclined ...

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Abstract

The invention discloses a cylindrical roller bearing, belongs to the technical field of rolling bearings, and mainly solves the problems that an existing cylindrical roller bearing is high in frictioncoefficient and cannot achieve high rotating speed. The cylindrical roller bearing is mainly characterized by being formed by an outer ring, an inner ring, a cylindrical roller and a retainer, wherein the flanges of the outer ring or / and the inner ring are inclined flanges with angles. The cylindrical roller bearing provided by the invention has the characteristics of being simple in structure, capable of reducing the contact area between the inner ring or / and the outer ring and the end face of a cylindrical roller, capable of reducing the friction coefficient of the bearing and capable of enabling the bearing to have high speed, and is mainly used for supporting a rotor shaft and an input shaft of an automobile electric drive system.

Description

technical field [0001] The invention belongs to the technical field of rolling bearings, and in particular relates to a cylindrical roller bearing with low friction and capable of handling high-speed working conditions, which is used for a rotor shaft or an input shaft in an electric drive assembly of an automobile. Background technique [0002] At present, the rotor shaft or input shaft in the electric drive assembly of automobiles requires bearings with low friction, high speed and certain load capacity. Ball bearing structures are mostly used in the market, and cylindrical roller structures are used in a small amount. Cylindrical roller bearings have N, NU, NUP, NJ, NF structures. [0003] Conventional cylindrical roller bearings in the market are composed of outer ring 1-01, inner ring 1-02, cylindrical roller 1-04 and cage 1-46. The structure is as follows: figure 1 , figure 2 shown. The ribs of the outer ring 1-01 and the inner ring 1-02 are of planar structure, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/36F16C33/58F16C33/34F16C37/00
CPCF16C19/36F16C33/34F16C33/585F16C37/007
Inventor 李旭郭平游利军
Owner XIANGYANG AUTOMOBILE BEARING CO LTD
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