In an electric environment, electrolytic corrosion from stray currents threatens bearing performance. NTN’s coated angular contact ball and cylindrical roller bearings, the MEGAOHM Series, insulate the bearings from electric current. A special ceramic coating applied to the outer surface and side faces of the outer ring prevents current from passing though the bearing. The design provides an insulation resistance of at least 2,000 MΩ. Under normal operating temperatures, this alleviates electrical arcing and early failure. The bearings come with or without seals or shields, and are interchangeable with standard, non-insulated bearings. Features and benefits of the series include being OEM preferred, they come in ball and cylindrical roller bearings, and they come with extensive OEM experience and service history. The bearings are available with bores of 50 to 160-mm dia. Options include specialized quality inspections with individual bearing serial numbering. The units follow GL Guidelines.
NTN Bearings www.ntnamerica.com
Filed Under: Seals & slip rings