Motion Control Coupling, Angular Misalignment 2 Degrees , Axial Motion 0.3 mm, Bore Diameter 1 10 mm, Bore Diameter 2 10 mm, Bore Type Round, Dynamic Torque Non-Reversing 2.8 N-m, Hub Length 11.8 mm, Hub Material Aluminum, Dynamic Torque Reversing 1.4 N-m, Coupling Outside Diameter 25.4 mm, Number of Discs 2 with Center Spacer, Center Spacer Material Aluminum, Length Through Bore 1 16.6 mm, Length Through Bore 2 16.6 mm, Maximum Bore Diameter 10 mm, Minimum Bore Diameter 10 mm This product contains a chemical that is regulated under California Proposition 65. Warning: This product contains a chemical known to the State of California to cause cancer. Warning: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. -