High-precision bidirectional bearing rotary table bearing

By designing high-precision bidirectional load bearings, using high-quality materials and unique double-row ball structure, the traditional bearings have been solved in terms of multi-directional load and long-term stability, and achieved excellent bidirectional load-bearing performance and long-term stability.

CN119687101APending Publication Date: 2025-03-25北京航天颐和科技有限公司
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Patent Information

Application Number
CN202411927175.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

Traditional rotary table bearings perform poorly in multi-directional loads and long-term stability, and are prone to ball deformation, wear and failure under complex load conditions, limiting the performance improvement of high-end equipment.

Method used

A high-precision bidirectional bearing is designed, with inner and outer rings made of GCr15 chrome steel, a cage made of nylon 66 material, a ball group of 440C stainless steel material, and a sealing cover made of nitrile rubber NBR, combining a unique double-row ball structure and an optimized sealing design.

Benefits of technology

It achieves excellent bidirectional load-bearing performance, ensures long-term stability and high-precision operation in harsh environments, significantly enhances the scope of application of bearings, extends service life, and reduces failure rate and maintenance costs.

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Abstract

The invention relates to the technical field of bearings, and discloses a high-precision bidirectional bearing rotary table bearing which comprises an inner ring. The outer ring is mounted on the outer side of the inner ring, the retainer is mounted between the inner ring and the outer ring, the ball group is mounted in the retainer, and the sealing cover is mounted between the inner ring and the outer ring close to the two sides of the ball group. Through cooperative use of the inner ring, the outer ring, the ball group, the retainer and the sealing cover, long-term stability and high-precision operation in various severe environments are ensured by improving the bidirectional bearing capacity of the bearing so as to adapt to wider application scenarios, and the bidirectional bearing capacity of the bearing is remarkably enhanced in the aspects of turntable requirements of products such as radars and cameras, so that the service life of the bearing is prolonged. According to the bearing provided by the utility model, the bearing can better cope with complex working conditions, the operation precision and reliability of the bearing are greatly improved by adopting high-quality materials and a precision machining process, the interior of the bearing is effectively protected from being influenced by external factors due to the optimized sealing design, and the failure rate is reduced.
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