Ceramic Bearings For Electric Motors

The non conductive silicon nitride ceramic balls in our ball bearings eliminate electrical arcing through the bearing crucial in applications where an electric motor is controlled by a variable frequency drive vfd.

Ceramic bearings for electric motors. Today we do a quick comparison of two identical cars with the exception of the ceramic bearings and titanium screws. Ceramic hybrid bearing styles and sizes. Ceramic bearings ceramic bearings are comprised of ceramic rolling elements balls enclosed in a ferrous typically steel inner and outer race. Ceramic bearings are typically constructed with a ferrous inner and outer ring or race with ceramic balls in the place of steel.

The use of nonconductive ceramic bearings prevents the discharge of shaft current. These bearing operations enable fresh grease to reach the bearing and push out excess grease. Characteristic fluting caused by electric arcing. Ceramic hybrid bearings are widely used in electric motors aerospace applications performance racing vehicles laboratory equipment under water applications and more.

Any application that requires higher speeds lower friction and longer life are ideal for ceramic hybrid bearings. Since these bearings are constructed from many materials they often operate in hybrid capacities. The motor end cap supports the bearing outer race. In most cases motors with ceramic bearings must be special ordered and have long lead times.

This technology is costly. All motors go down the same assembly line and it is just easier to put the fittings on every. Ceramic balls are also nonconductive. Ceramic hybrid ball bearings last longer.

Bearings coated with a ceramic insulating material stop electric arcing inset. Ceramic hybrid ball bearings are electrically non conductive. Donepart r8 2rs bearings 1 2 x1 1 8 x5 16 inch abec3 high speed miniature ball bearing for electric motor wheels home appliances garden machinery 10 pack 4 6 out of 5 stars 39 9 49 9. Bearing and motor manufacturers have given various reasons as to why grease fittings are installed on bearings and motors that have sealed bearings such as.

Ceramic balls are suitable for applications where high loads high speeds and extreme temperatures are factors. Long life and the need for minimal lubrication make this material appropriate for extreme applications.