Precision Sealed Ball
Colson - Precision Sealed Ball Bearing

Recommended for maximum rolling ease with no maintenance lubrication required, this quiet operating bearing is for medium duty to heavy duty loads. This bearing is available on all Endura Solid Elastomer and 2″ tread width non conductive Performa Rubber wheels  and is standard on all Triumph, Conquest and Commander HD wheels. Now available for Performa hand truck wheels!