The vitrified CBN internal grinding wheel is used not only for the inner diameter of the bearing inner wheel and the groove of the outer wheel,

but also for the grinding of the inner surface of the compressor and the parts of the pump body.

It is also used for the inner surface grinding of automobile parts, gear, nozzle, valve body, cross joint cover, connecting rod,inner diameter of the CVJ outer ball 

seat and the groove bed, the CVJ ball frame window and the grinding of the inner sphere.

There are many kinds of materials, such as carburized steel, carbon steel, bearing steel, sintered alloy and more is suitable to be grinded.