The Grip Tight ball bearing is shaft-ready right out of the box and offered in a variety of housing styles for normal and medium duty operations. It accommodates commercial grade and some undersized shafting to lower costs, and all Grip Tight assemblies fit into a standard Dodge ball bearing housing. Dodge Pillow Block Adapter Ball Bearing, Medium Duty Non-Expansion Single Lip, Series: 215, 2-11/16 in Bore Dia, 8-1/2 to 9-1/2 in Bolt Center-to-Center Length, 3-1/2 in Base to Bore Centerline, 11-3/4 in Overall Length, 2.46 in Overall Width, 6-3/4 in Overall Height, Two-Bolt Base Mount, Round Bore Type, 2.88 in Base Width, Grip-Tight Adapter Mounted Locking Device, Single Lip Seal, Non-Expansion Expansion Type, 14872 lb Dynamic/11108 lb Static, 4800 rpm Maximum, Steel, Uncoated Non-metallic retainer provides added strengthGrade 10 balls for quiet operationCase-carburized inner ring ensures greater wear resistance and longer lifeLock/inner ring interface acts as bearing puller to ease disassemblyRugged housing for easy installation and alignment