Rolling bearing

A technology of rolling bearings and rolling elements, applied in the field of bearings, can solve problems such as shortening the service life of bearings, and achieve the effects of prolonging the service life, suppressing temperature rise, and reducing accumulation

Pending Publication Date: 2021-06-11
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the more grease in the wheel set bearings, the faster the wheel set bearings will heat up during operation and the bearing life will be reduced

Method used

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Embodiment Construction

[0031] figure 1 A half-sectional view of a rolling bearing according to a first preferred embodiment of the present invention is shown. The rolling bearing according to the first preferred embodiment is configured as a double-row tapered roller bearing. In this case, the rolling bearing can be used, for example, as a wheel set bearing in a train.

[0032] Such as figure 1 As shown, the rolling bearing includes an outer ring and an inner ring, two rows of rolling elements (not shown) in the form of tapered rollers arranged radially between the outer ring and the inner ring, and two cages for holding one row of rolling elements respectively 2.

[0033] The outer ring is arranged on the radially outer side of the two rows of tapered rollers. In this embodiment, the outer ring is constituted by a separate outer ring component 1 , wherein the radially inner side of the outer ring component 1 is configured with two inner raceways for tapered rollers spaced apart in the axial dir...

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PUM

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Abstract

The invention relates to a rolling bearing. The rolling bearing comprises two rows of rolling bodies, an outer ring, an inner ring and two holders (2). An inner rolling way used for the rolling bodies is constructed on the outer ring. An outer rolling way used for the rolling bodies is constructed on the inner ring. The two holders are arranged in the axial direction side by side between the outer ring and the inner ring and are used for the two rows of rolling bodies, axial ends (21), located on the axial inner side of the rolling bearing, of the holders (2) are coated with anti-sticking coatings (5), the anti-sticking coatings (5) are made of materials, and compared with materials of the holders (2), the materials have a lower coefficient of friction relative to a lubricant used for the rolling bearing.

Description

technical field [0001] The invention relates to the technical field of bearings. The invention relates in particular to a rolling bearing. Background technique [0002] Wheelset bearings can be used in the axleboxes of train bogies. [0003] For example, Chinese patent document CN 102951170 B discloses an axle box unit for a railway vehicle bogie. Axleboxes mentioned include rolling bearings and the axlebox housings accommodating the rolling bearings. In this solution, the rolling bearing is configured as a double-row tapered roller bearing, which specifically includes two rows of tapered rollers, an outer ring configured with an inner raceway for the tapered rollers, and an outer ring configured with an outer raceway for the tapered rollers. inner circle. Each row of tapered rollers is held stably between the outer and inner rings by means of a cage. [0004] As another example, Chinese patent document CN 105570290 B also discloses an axle box bearing unit for a train ...

Claims

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Application Information

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IPC IPC(8): F16C19/38F16C33/58F16C33/66
CPCF16C19/38F16C33/583F16C33/6659
Inventor 蔡福强吴丽娟邓刚
Owner SCHAEFFLER TECH AG & CO KG
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