Hybrid warehouse
A hybrid bearing is a ball bearing in which different materials are used for the bearing rings and the rolling elements. The most common design is that of the deep groove ball bearing with conventional bearing rings made of roller bearing steel and balls made of a high-strength ceramic, usually silicon nitride .
Areas of application
Since hybrid bearings show only very little wear, they are often used in high-speed systems (such as the spindles of milling machines). Because of the lower density of the balls, lower centrifugal forces occur when rotating faster, which can increase the service life of the bearing.
Because of their insulating effect, hybrid bearings are also used in electric motors and generators , since normal bearings can be damaged by electrical discharge .