Rolling bearing inner ring raceway and rolling bearing

Abstract

The present invention provides a rolling bearing inner ring raceway and a rolling bearing, wherein a dynamic lubricating texture is provided in the central area of ​​the rolling surface of the rolling bearing inner ring, and the dynamic lubricating texture is used to separate the raceway surface from the rolling body surface , to avoid dry friction; the side area of ​​the raceway surface is provided with an oil storage texture, and the side area of ​​the raceway surface is a symmetrical area on both sides of the center area of ​​the raceway surface, which is used to form a continuous Oil film; the surface of the raceway is provided with an oil distribution texture, and the oil distribution texture partially overlaps with the dynamic lubrication texture and the oil storage texture, and is used to move the lubricating oil along the moving direction of the rolling elements. The invention can jointly improve the running stability and lubricating condition through the dynamic lubricating texture, the oil storage texture and the oil distribution texture.

Description

technical field [0001] The invention relates to the field of bearings, in particular to an inner raceway of a rolling bearing and a rolling bearing. Background technique [0002] Rolling bearings are important mechanical basic parts, and their technological performance often represents or restricts the development level of a country's machinery industry and other related industries. Abrasion or seizure of raceway contact surfaces due to insufficient lubrication of raceway surfaces and lack of abrasive particle capture mechanism is one of the main failure modes of rolling bearings. [0003] The Chinese patent discloses a high-life rolling bearing with a specific texture sequence on the surface of the raceway. A single uniform texture array is processed on the surface of the raceway, which effectively reduces the friction coefficient of the raceway surface and prolongs the life of the bearing. However, it does not take into account that different areas of the raceway face dif...

AI Technical Summary

Problems solved by technology

When impacted by alternating loads, its stable running track may jump, which increases the instability of rolling bearings

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