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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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 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 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 will occur in severe cases
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[0009] Below in conjunction with accompanying drawing, the present invention will be further described:
[0010] Referring to Fig. 1 and Fig. 2, there are ribs 2 at both ends of the outer wall of the bearing inner ring 1, and overrun grooves 3 are formed at the bottom of the ribs 2. The bottom surface of the stroke groove 3 and the two sides of the overstroke groove 3 are smooth transitions. The anti-cracking bearing inner ring of the present invention designs the bottom of the overtravel groove 3 as a smooth transition, which effectively prevents the cracking problem caused by stress concentration. At the same time, the orientation of the overtravel groove 3 is selected at an angle of 45°, which is convenient for the tool to extend into the designated position. It does not interfere with the raceway and rib 2, and the overrun groove 3 after the optimized design can use the clamping tool of the molding machine instead of hand grinding, avoiding product quality problems due to ...
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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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Patent Timeline
Login to View More 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