Novel high-speed and high-precision all-ceramic roller bearing

Abstract

The present invention provides a novel high-speed and high-precision all-ceramic roller bearing, comprising an outer ring, an inner ring, rollers and a cage; a retaining shoulder at one side of the outer ring is slotted to form a groove with the radian being 30 degrees, and the height of the groove is half of the retaining shoulder of the outer ring; the inner diameter of the inner ring is 70% ofthe outer diameter of the outer ring; channels of both the outer ring and the inner ring are coated with a layer of graphene. The novel high-speed and high-precision all-ceramic roller bearing has theadvantages and effects of optimized outer ring structure with the retaining shoulder of the roller bearing, improved installation process, reduced production costs and improved performance of the roller bearing, and the non-destructive installation of the silicon nitride all-ceramic roller bearing is achieved.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a novel high-speed and high-precision all-ceramic roller bearing. Background technique [0002] High-speed ultra-precision is a major trend in the development of the manufacturing industry at present. The development of high-speed ultra-precision bearings is inseparable from the development process. At present, metal bearings are mainly used in the bearing industry, but due to the relatively large amount of thermal deformation of metal bearings, During the application process of time, the original precision of the equipment will be affected due to thermal deformation. In some equipment with relatively high speed requirements, due to the relatively large friction coefficient of metal bearings, it is easy to cause wear and affect the life of the bearings. In some high-temperature environments, due to the relatively high thermal expansion coefficient of metal bearings, it is easy to aggrava...

AI Technical Summary

Problems solved by technology

[0002] High-speed ultra-precision is a major trend in the development of the manufacturing industry. In some of its development processes, the development of high-speed ultra-precision bearings is inseparable. At present, metal bearings are mainly used in the bearing industry, but due to the relatively large amount of thermal deformation of metal bearings, During the application process of time, the original accuracy of the equipment will be affected due to thermal deformation

In some equipment with relatively high speed requirements, due to the relatively large friction coefficient of metal bearings, it is easy to cause wear and affect the life of the bearings

In some high temperature environments, due to the relatively high thermal expansion coefficient of metal bearings, it is easy to aggravate the wear of metal bearings

In addition, in some acid-base environments, metal bearings cannot be used

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