RC081208 One Way Needle Bearing/Clutch 1/2x3/4x1/2 inchRC081208 Needle Roller Bearing Clutch One WayShell Type RC081208 Needle Roller Bearing Clutch Shell Type, this is a popular size that could be used in many application that uses this size 1 2" x 3 4" x 1 2" inch. Item: RC081208 Needle Roller Bearing Clutch One Way Shell Type Type: Needle Roller Bearing Clutch Size: 1 2" x 3 4" x 1 2" inch Inner Diameter: 1 2" inch Outer Diameter: 3 4" inch Width: 1 2" inch Quantity: One Bearing