The electric insulation bearing adopts the special spraying process, and the high-quality coating is sprayed on the outer surface of the bearing. The bonding force of the coating and the substrate is strong, and the insulation performance is good, which can avoid the electro-erosion effect of the induced current on the bearing and prevent the current from acting on the grease and the rolling element. Damage caused by the raceway to improve the service life of the bearing. Electrically insulated bearings can avoid damage caused by electrical corrosion, so they can be used in motors to ensure more reliable operation than ordinary bearings. It is more cost effective and reliable than other insulation methods such as shaft or housing insulation. Insulated bearings have the same dimensions and basic technical features as non-insulated bearings and are therefore 100% interchangeable.