Low-noise deep groove ball bearing

A deep groove ball bearing, low noise technology, applied in the direction of rotating bearings, bearings, bearing components, etc., can solve problems such as cage abnormal vibration, cage noise, cage interference, etc., to avoid abnormal vibration and reduce noise , Improve the effect of sealing effect

Active Publication Date: 2016-05-04
NINGBO WANFENG BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the circumferential width of the inner groove of the bearing is large, the center position of the cage will have a large displacement, which may cause abnormal vibration of the cage during the operation of the bearing, making the cavity between the cavity of the cage and the bearing ball There is interference between them, and noise between the holder and the cage

Method used

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  • Low-noise deep groove ball bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The invention provides a low-noise deep groove ball bearing, such as figure 1 As shown, it includes a bearing outer ring 1, and a bearing inner ring 2 coaxially arranged inside the bearing outer ring, and a plurality of bearing balls 3 are arranged between the bearing outer ring 1 and the bearing inner ring 2, the bearing The ball 3 can roll in the outer raceway of the inner surface of the bearing outer ring 1 and the outer raceway of the outer surface of the bearing inner ring 2 .

[0035] The inner cavity between the bearing outer ring 1 and the bearing inner ring 2 of the deep groove ball bearing is sealed by two annular sealing rings 5 ​​arranged axially opposite to each other, and the inner cavity between the bearing outer ring 1 and the bearing inner ring 2 The cavity is filled with bearing lubricant.

[0036] Such as Figure 4 As shown, the annular section of the sealing ring 5 has a multi-layer structure, including the outermost radial sealing edge 5.4, which ...

Embodiment 2

[0045] Further preferably, the cavity between the bearing outer ring 1 and the bearing inner ring 2 of the deep groove ball bearing is distributed with a bearing cage 6 that is interlocked by two parts, so that a plurality of bearing balls 3 are arranged in the circumferential direction to Evenly spaced and maintained.

[0046] Such as Figure 5 As shown, the half of the bearing cage 6 on the side of the bearing ball 3 includes a partially spherical cavity 6.7, and the two half sides are formed as a spherical cavity that contains and holds the bearing ball. In the axial direction between 2, the two sides of the spherical cavity form two annular grooves 6.2 and 6.4. The openings of the two grooves are opened to the bearing ball raceway and the openings diverge. The two grooves can be symmetrical or asymmetrical. The annular groove can be used as an additional groove for storing lubricant. During the operation of the bearing, the lubricant is temporarily accumulated and prevent...

Embodiment 3

[0049] Further preferred, such as Image 6 As shown, the joint position of the bearing cage 6 between the bearing balls 3 is in the form of a fastening piece, preferably in the form of a tenon and a groove, so that the two halves of the bearing cage are fastened together without other connections Way.

[0050] Further preferred tenons and grooves are selected as a hollow frustoconical shape with a hole, and the hole communicates the bearing cage with the outer central annular spaces 6.5 and 6.6, so that the space between the cages is connected to the bearing outer ring and The spaces between the inner rings are in fluid communication.

[0051] The cage and the radial sealing edge can be made of plastic materials, such as polyamide 66 and polyhexamethylene amide. Such materials have good wear resistance under heavy loads, and have a small friction coefficient and good aging resistance. Of course, it can also be produced from conventional materials such as steel.

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PUM

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Abstract

The invention provides a low-noise deep groove ball bearing. A bearing retainer (6) formed by mutually buckling two parts is distributed in a cavity between a bearing inner ring and a bearing outer ring, the combination position of the bearing retainer (6) among bearing balls (3) uses a tenon and groove combination form, the bearing retainer (6) is in an axial direction between the bearing inner ring (1) and the bearing outer ring (2), two side parts of the spherical cavity form two annular slots (6.2, 6.4), and the openings of the two slots are open to a baring ball raceway and are divergent.

Description

technical field [0001] The invention relates to a deep groove ball bearing, in particular to a low noise deep groove ball bearing. Background technique [0002] Deep groove ball bearings are the most commonly used rolling bearings, are suitable for high speed operation, and are durable and maintenance-free. Generally, deep groove ball bearings are required to have small friction coefficient, high limit speed and low manufacturing cost. Various sizes and shapes, suitable for precision instruments, low-noise motors, automotive and other industries. [0003] This type of deep groove ball bearing consists of an inner bearing ring and an outer bearing ring and a plurality of bearing balls arranged between the bearing rings. The bearing balls race in groove-shaped raceways in the inner surfaces of the inner and outer bearing rings. , Because the annular raceways of the inner and outer rings of deep groove ball bearings and the balls are relatively closed, it is difficult for dee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/38F16C33/80F16C33/58
CPCF16C19/166F16C33/3806F16C33/583F16C33/7886F16C33/7893F16C33/7896
Inventor 周明海黄列郑长根陆镇桥卢利军黄玉仁徐群慧
Owner NINGBO WANFENG BEARING
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