Ceramic Bearings For Electric Motors

Characteristic fluting caused by electric arcing.

Ceramic bearings for electric motors.

The motor end cap supports the bearing outer race. Since these bearings are constructed from many materials they often operate in hybrid capacities. Ceramic hybrid bearing styles and sizes. Any application that requires higher speeds lower friction and longer life are ideal for ceramic hybrid bearings.

Long life and the need for minimal lubrication make this material appropriate for extreme applications. Ceramic hybrid bearings are widely used in electric motors aerospace applications performance racing vehicles laboratory equipment under water applications and more. This technology is costly. Ceramic balls are also nonconductive.

Ceramic bearings ceramic bearings are comprised of ceramic rolling elements balls enclosed in a ferrous typically steel inner and outer race. These bearing operations enable fresh grease to reach the bearing and push out excess grease. The use of nonconductive ceramic bearings prevents the discharge of shaft current. Ceramic bearings offer many advantages over all steel bearings such as higher speed and acceleration capability increased stiffness lower friction and more.

Ceramic balls are suitable for applications where high loads high speeds and extreme temperatures are factors. Ceramic hybrid ball bearings last longer. 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. As with other isolation measures shaft current will seek an alternate path to ground.

Today we do a quick comparison of two identical cars with the exception of the ceramic bearings and titanium screws. 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 are typically constructed with a ferrous inner and outer ring or race with ceramic balls in the place of steel. All motors go down the same assembly line and it is just easier to put the fittings on every.

Bearings coated with a ceramic insulating material stop electric arcing inset. Ceramic hybrid electric motor quality emq bearings have steel races and ceramic balls.