Motion Control Coupling Angular Misalignment 2 Degrees Axial Motion 0.012 in Bore Diameter 1 3/8 in Bore Diameter 2 1/4 in Bore Type Round Dynamic Torque Non-Reversing 25 lb-in Hub Length 0.5 in Hub Material Aluminum Dynamic Torque Reversing 12.5 lb-in Coupling Outside Diameter 1 in Number of Discs 2 with Center Spacer Center Spacer Material Aluminum Length Through Bore 1 0.7 in Length Through Bore 2 0.7 in Maximum Bore Diameter 3/8 in Minimum Bore Diameter 3/8 in