Motion Control Coupling, Angular Misalignment 3 Degrees , Bore Diameter 1 1/4 in, Bore Diameter 2 1/4 in, Coupling Material Aluminum, Coupling Outside Diameter 3/4 in, Maximum Speed 6,000 RPM, Maximum Torque 26 in-lb, Axial Motion 0.005 in, Overall Length 1 1/4 in, Parallel Misalignment 0.008 in, System of Measurement Inch, Different Bore Sizes No, Torsional Stiffness 6.58 in-lb/Deg, Bore Type Round, Shaft Locking Type Clamp On, Number of Beams 6, Length Through Bore 2 0.6 in 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. -