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Conical roller bearing

A technology of tapered roller bearings and tapered rollers, which is applied in the direction of roller bearings, bearings, rolling contact bearings, etc., can solve the problems of sintering of sliding parts and inability to reach fully, so as to inhibit sintering, improve lubricity, and reduce manufacturing cost effect

Inactive Publication Date: 2012-10-17
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the amount of oil flowing in the tapered roller bearing is limited to a very small amount in order to greatly reduce the stirring resistance of oil, which is a major factor of torque, for the purpose of greatly reducing the torque, the oil may not be able to sufficiently Reach the sliding part between the large flange part of the inner ring and the large-diameter end surface of the tapered roller, so that the above-mentioned sliding part is sintered

Method used

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  • Conical roller bearing
  • Conical roller bearing
  • Conical roller bearing

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Embodiment Construction

[0068] Hereinafter, the present invention will be described in detail based on the drawings.

[0069] figure 1 It is an axial sectional view of the tapered roller bearing according to the first embodiment of the present invention.

[0070] The tapered roller bearing rotatably supports the pinion shaft 50 of a vehicle pinion shaft support device such as a differential gear device, a transmission device, or a transaxle device on a case 60 of a vehicle pinion shaft support device.

[0071] This tapered roller bearing has an outer ring 1 , an inner ring 2 , a plurality of tapered rollers 3 as rolling elements, and a cage 5 . The outer ring 1, the inner ring 2, and the tapered rollers 3 are made of steel such as bearing steel.

[0072] The outer ring 1 is embedded and fixed on the inner peripheral surface of the housing 60 by interference fit. The outer ring 1 has a conical raceway surface 11 . On the other hand, the inner ring 2 is externally fitted and fixed to the outer peri...

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PUM

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Abstract

A parallel section (35) which radially faces a conical raceway surface (12) of an inner race (2) and extends axially from the smaller diameter portion of the conical raceway surface (12) toward a larger flange section (14), is formed in a cage (5). An axially extending groove is formed in an inner surface (40) of the parallel section (35). A gap which can hold gear oil in the groove by means of the surface tension of the gear oil when the cage (5) is stationary with respect to the inner race (2), is formed between the conical raceway surface (12) of the inner race (2) and the inner surface (40) of the parallel section (35).

Description

technical field [0001] The present invention relates to a tapered roller bearing, for example, a tapered roller bearing suitable for supporting a pinion shaft or the like of a vehicle pinion shaft support device such as a differential gear device, a transmission device, or a transaxle device. Background technique [0002] Conventionally, as a tapered roller bearing, there is a tapered roller bearing described in JP-A-11-48805 (Patent Document 1). The tapered roller bearing has an inner ring, an outer ring, and tapered rollers. The inner ring has a large flange portion on the large diameter side of the tapered raceway surface that is in contact with the large diameter end surface of the tapered roller. The inner peripheral surface of the inner ring is fixed to a pinion shaft of the differential gear unit, and the outer peripheral surface of the outer ring is fixed to an annular partition wall in the differential gear unit. [0003] In the tapered roller bearing, the oil flo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/66F16C19/36F16C33/46
CPCF16C19/364F16C33/4605F16C33/6629F16C33/6681F16C33/543F16C2361/61
Inventor 臼杵功雄上野弘中西宏怜阪口雅滨田和生平冈宽规
Owner JTEKT CORP