Intermittent Abrasive Tool for Machining the Butt Ends of Bearing Rings

Abstract

A design of an intermittent abrasive tool has been developed for processing flat surfaces, in particular the ends of bearing rings. The presented design of the abrasive wheel allows to reduce the temperature of the surface layer and ensure its high cutting ability, which makes it possible to stabilize the quality parameters of the surface layer and avoid product defects. The use of the technology of supplying cooling fluid through the working surface of the abrasive wheel directly into the processing zone under pressure made it possible to minimize the width of the groove of the intermittent wheel and ensure its high cutting ability by preserving a large number of abrasive grains and cleaning the surface of the wheel from grinding products. The use of the presented design of the intermittent tool made it possible to improve the roughness of the ends of the bearing rings by 0.5 microns and increase the hardness of the surface layer by 1.5-2 HRC units, avoid burns, product defects and increase the efficiency of the process of flat abrasive processing.