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A self-aligning roller bearing with a sealed structure

A self-aligning roller bearing and sealing structure technology, applied in the direction of roller bearings, rotating bearings, bearings, etc., can solve the problems of large bearing space and grease leakage, and achieve the effect of improving the sealing effect.

Inactive Publication Date: 2017-10-03
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the inner seal ring and the outer seal ring are arranged opposite to each other at intervals, this will take up a large space for the bearing
In addition, if this double seal structure is used in spherical roller bearings, when the bearing rotates, there will be a gap between the outer seal ring and the outer ring, resulting in grease leakage

Method used

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  • A self-aligning roller bearing with a sealed structure
  • A self-aligning roller bearing with a sealed structure
  • A self-aligning roller bearing with a sealed structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Such as figure 1 and figure 2 As shown, the spherical roller bearing of the present invention includes an outer ring 1, an inner ring 5, a cage 3 located between the outer ring 1 and the inner ring 5, installed in the cage 3 and located between the outer ring 1 and the inner ring 5 Between several rollers 2, and the first seal 6 and the second seal 4.

[0019] Such as image 3 As shown, the outer ring 1 of the present invention includes an annular body portion 10 and a first installation groove 11 on one side of the body portion 10 . A first raceway 12 for rolling the rollers 2 is also formed on the inner surface of the body part 10 , and the first raceway 12 is in the shape of a continuous curved surface. Such as Figure 4 As shown, the diameter of the cage 3 of the present invention is slightly smaller than the inner diameter of the outer ring 1, and the cage 3 includes a larger outer ring 31, a smaller inner ring 32 and a connection between the outer ring 31 and...

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PUM

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Abstract

A spherical roller bearing with a sealed structure, which includes an inner ring, an outer ring, a cage located between the inner ring and the outer ring, and several rollers installed in the cage and located between the inner ring and the outer ring , and the first and second seals. The first end of the first seal is fixed on the outer ring, and the second end is against the inner ring. The second seal is located inside the first seal, the first end of the second seal is fixed on the inner ring, and the second end is against the first seal. The first seal and the second seal provide a double-layer sealing effect on the spherical roller bearing, thereby greatly improving the sealing effect of the spherical roller bearing.

Description

technical field [0001] The invention relates to a self-aligning roller bearing, in particular to a self-aligning roller bearing with a sealing structure. Background technique [0002] The inside of the bearing is usually filled with lubricating grease to ensure the normal operation of the bearing, and the bearing is usually provided with a sealing structure to prevent leakage of the lubricating grease. However, during the operation of the bearing, especially when operating in a harsh environment, such as severe vibration, high temperature, humidity, etc., the lubricating grease inside the bearing may leak, thereby polluting other surrounding devices. In addition, external foreign matter may also enter the bearing, which will also affect the normal operation of various components inside the bearing and shorten the service life of the bearing. [0003] Chinese invention patent No. 200580034457.3 discloses a spherical roller bearing with a sealed structure, which includes an i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/78F16C33/58F16C33/66F16C33/30
CPCF16C33/78F16C19/38F16C23/086
Inventor 周国刘际轩
Owner SCHAEFFLER TECH AG & CO KG