Size: STD Width: 31.0 mm Wall thickness: 1.987 mm Wall thickness (max): 1.986 mm Shaft diameter (min): 64.981 mm Shaft diameter: 65.0 mm Bearing diameter (min): 69.0 mm Bearing diameter: 69.019 mm Bearing clearance (Min): 0.028 mm Bearing clearance (Max): 0.09 mm Weight: 0.11 kg