Bearing inner ring

A technology of bearing inner ring and overtravel groove, applied in the field of bearing inner ring, can solve the problems of hand-grinding tool danger, uneven quality of tool head, cracking, etc., so as to avoid product quality problems, prevent cracking problems, and avoid safety accidents Effect

Inactive Publication Date: 2017-05-17
新昌县明瑞关节轴承有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The outer wall of the inner ring of the bearing is often provided with an overtravel groove at the step. The overtravel groove is a groove along the circumferential direction for the convenience of withdrawing from the grinding wheel or abrasive belt during grinding. The traditional overtravel groove needs to be realized by hand sharpening. Due to the difference in the skill level of the operators, the quality of

Method used

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[0009] The present invention will be further explained below in conjunction with the drawings in the specification:

[0010] Referring to Figure 1 and Figure 2, the outer wall of the bearing inner ring 1 has ribs 2 at both ends, and an overtravel groove 3 is opened at the bottom of the rib 2. The direction of the overtravel groove 3 is at a 45° angle to the center line of the bearing inner ring 1. The bottom surface of the trough 3 and the two sides of the trough 3 are smoothly transitioned. In the anti-cracking bearing inner ring of the present invention, by designing the bottom of the overtravel groove 3 as a smooth transition, it can effectively prevent the problem of cracking caused by stress concentration. It does not interfere with the raceway and ribs 2, and the optimized design of the overtravel groove 3 can use the forming machine clamping knife instead of hand sharpening, avoiding product quality problems due to the instability of hand sharpening quality, and avoiding e...

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Abstract

The invention relates to a bearing inner ring. The bearing inner ring is characterized in that flanges are arranged at the two ends of the outer wall of the bearing inner ring, a grinding undercut is formed in the bottom of each flange, the angle between the direction of each grinding undercut and the center line of the bearing inner ring is 45 degrees, and the bottom surface of each grinding undercut is in smooth transition with the two edges of the grinding undercut. According to the anti-crack bearing inner ring, the bottoms of the grinding undercuts are designed to be in smooth transition, and thus cracking caused by stress concentration is effectively prevented.

Description

technical field [0001] The invention relates to a bearing inner ring. Background technique [0002] The outer wall of the inner ring of the bearing is often provided with an overtravel groove at the step. The overtravel groove is a groove along the circumferential direction for the convenience of withdrawing from the grinding wheel or abrasive belt during grinding. The traditional overtravel groove needs to be realized by hand sharpening. Due to the difference in the skill level of the operators, the quality of the hand-grinding knife is often uneven, which affects the processing quality of the bearing. At the same time, there is considerable danger in hand-grinding the knife. On the other hand, due to the traditional It is designed as an annular square groove. When grinding, the stress is concentrated at the junction of the surface and the surface, so deformation is easy to occur at the step, and cracking may occur in severe cases. Contents of the invention [0003] In v...

Claims

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Application Information

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IPC IPC(8): F16C33/58
CPCF16C33/58F16C2220/70
Inventor 许明超
Owner 新昌县明瑞关节轴承有限公司
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