Self-adaption high-precision bearing end surface fixed part

Abstract

The invention discloses a self-adaption high-precision bearing end surface fixed part. The part comprises a bearing inner ring spherical surface retainer ring, a bearing inner ring locking nut, a bearing outer ring spherical surface retainer ring and a bearing outer ring locking nut. The flat end surface of the bearing inner ring spherical surface retainer ring leans against the end surface of an angular contact spherical bearing inner ring; a convex spherical surface is bonded with a spherical surface of the bearing inner ring locking nut; and the bearing inner ring locking nut is connected with a shaft to realize fixation of the angular contact spherical bearing inner ring. The flat end surface of the bearing outer ring spherical surface retainer ring leans against the end surface of an angular contact spherical bearing outer ring; a convex spherical surface is bonded with a spherical surface of the bearing outer ring locking nut; and the bearing outer ring locking nut is connected with a bearing base to realize fixation of the angular contact spherical bearing outer ring. The part has the advantages of simple structure, good adaptability and high precision; and for a space remote sensing movable part with high precision requirement, in particular for an angular contact bearing with separated inner and outer rings, the bearing installation precision can be guaranteed, and the part manufacturability and economy are better.

Description

technical field [0001] The invention relates to a bearing element, in particular to an adaptive high-precision bearing end surface fixing part. Background technique [0002] In the high-precision space motion mechanism, it mainly relies on high-precision bearings to achieve accurate rotation orientation. However, due to the machining errors of the shaft, bearing seat and end face fixing nut, especially the perpendicularity between the end face of the end face fixing nut and the thread is difficult to ensure, the traditional nut fixing method will easily lead to a decrease in the runout accuracy of the bearing after installation, thereby affecting the rotation accuracy of the shaft system. Even reduce the service life of the bearing. The invention designs a fixing part, optimizes the fixing method of the end surface of the bearing, and ensures the runout accuracy after installation. Contents of the invention [0003] In order to solve the above-mentioned problems in the p...

AI Technical Summary

Problems solved by technology

However, due to the machining errors of the shaft, bearing seat and end face fixing nut, especially the perpendicularity between the end face of the end face fixing nut and the thread is difficult to ensure, the traditional nut fixing method will easily lead to a decrease in the runout accuracy of the bearing after installation, thereby affecting the rotation accuracy of the shaft system. Even reduce the service life of the bearing

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