Bearing industry

Some large-sized bearing outer rings and rollers are machined using a plunge-cut or oscillating external grinding mill. The grinding process is divided into coarse grinding, semi-finishing, fine grinding and non-sparking grinding because of the different application parameters. The outer channel grinding of the inner ring is also a kind of outer circle processing.

Both the inner ring inner bore machining of the bearing and the inner raceway machining of the outer ring can be machined by the inner circular mill through a plunge or oscillating type. The grinding process is divided into coarse grinding, semi-finishing, fine grinding and non-sparking grinding because of the different application parameters. Inner ring machining is called inner hole grinding. The outer ring machining is called the outer ring inner race grinding. Since the inner race of the outer ring is in direct contact with the rolling elements, the machining accuracy is usually higher than that of the inner ring.

For small and medium-sized bearing ring end faces, it is usually machined by double-end grinding. The thickness tolerances, flatness and parallelism of the bearing rings are guaranteed by this grinding method. For large-size bearing rings, the end face grinding of the sand tiles is usually used for machining.