In an electric environment, electrolytic corrosion from stray currents threatens bearing performance. NTN’s coated angular contact ball and cylindrical roller bearings (MEGAOHM™ Series) insulate the bearings from electric current.

A special ceramic coating is applied to the outer surface and side faces of the outer ring to prevent current from passing though the bearing. The unique design provides insulation resistance of at least 2000 MΩ: under normal operating temperatures, alleviating electrical arcing and early failure.

MEGAOHM™ Series bearings are available with or without seals or shields, and are fully interchangeable with standard, non-insulated bearings.