Ceramic angular contact ball bearing with high bearing capacity

The double-row staggered rolling element arrangement, heat dissipation holes and oil storage cavity design, combined with high-strength ceramic materials, solves the problems of insufficient load-bearing capacity and limited heat dissipation performance of ceramic angular contact ball bearings under high load and high speed, achieves efficient lubrication and heat dissipation, and improves the overall performance of the bearing.

CN120650328APending Publication Date: 2025-09-16上海奇磐科技有限公司
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Patent Information

Application Number
CN202510901947.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-01
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

Existing ceramic angular contact ball bearings have insufficient load-bearing capacity, limited heat dissipation performance and uneven lubrication under high load and high speed conditions, which affects the service life and stability of the bearings.

Method used

It adopts a double-row staggered rolling element arrangement, heat dissipation through-hole design and oil storage cavity structure, combined with high-strength silicon nitride ceramic material and precise oil outlet micro-pore oil supply system to optimize lubrication and heat dissipation performance.

Benefits of technology

It significantly improves the bearing's load-bearing capacity and anti-overturning performance, enhances heat dissipation, reduces friction loss, and extends service life, making it suitable for high-load and high-speed environments.

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Abstract

The invention relates to the technical field of bearings, and discloses a ceramic angular contact ball bearing with high bearing capacity, the ceramic angular contact ball bearing comprises an outer ring, an inner ring, a rolling body, a retainer and an oil storage cavity, the outer ring is of a cylindrical structure, and the inner surface of the outer ring is in contact with the rolling body; the inner ring is positioned inside the outer ring, and the outer surface of the inner ring is contacted with the rolling body; and the rolling bodies are a plurality of spherical ceramic elements which are fixed and separated by the retainer. By optimizing the arrangement mode and material selection of the rolling bodies, the bearing has higher bearing capacity and anti-overturning performance under the high-load condition; the heat dissipation through holes are formed in the retainer, so that the heat dissipation performance of the bearing in the running process is remarkably improved, and the bearing failure risk caused by overheating is reduced; through the design of the oil storage cavity and the oil outlet micropores matched with the oil storage cavity, uniform supply of lubricating oil is achieved, and friction loss between the rolling body and the inner ring and the outer ring is reduced.
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