J&T 8x16x5mm Ceramic Bearing are rubber sealed and ...
grease filled, and will stand up to abusive applications that other ceramics will not. Featuring Si3N4 ceramic balls, "J" or "W" Type retainer cages, a true ABEC 5 rating, and rubber seals, these bearings ...
Nova Engines 14.5x26x6 .21 Ceramic Rear Ball Bearing. ...
This replacement bearing is intended for the type R .21 Nova Engines. However, this can also be used as an upgrade to the Nova Engines B3, B5, G5, G9, and R9 engines. ...