Insulated ball bearings, protection against current flow and electrical corrosion

Electrically insulated rolling bearings have integrated electrical insulation and provide reliable protection against current flow and electrical corrosion. Insulated bearings are typically used in electric motors, generators, and other electrical equipment.
Electrical voltage may arise in a rolling bearing between the outer and inner rings, causing electrical discharges to occur in the contact area between the rolling elements and the surface of the inner or outer ring.

The current flow can damage the rolling surfaces of the bearing and deteriorate the rolling parameters. The flowing current also destroys the lubricant.
The flow of electric current through the rolling bearings used in electric motors can be prevented by using bearings with an insulating layer.

Product Features:

Isolated elements
Reduced dimensions
Long durability
High reliability
Heavy duty basket

Product advantages:

Protection against electrical corrosion
Proper design of cages (deep groove ball bearings and cylindrical roller bearings)
Proper design of contact points (cylindrical roller bearings)
Traceability of product development
Check the smoothness of the treadmill
Finely machined surface of rollers and balls
Vacuum degassed steel for high purity
Dimensional stability of bearing steel
Bearings made in the ISO 6 class

The most important suppliers of insulated bearings include: NKE, a member of the FERSA Group since 2018, and the Japanese manufacturer of cows - NSK, SKF and Schaeffler.