Jaw Coupling Insert, Coupling Size JC10, JS10, MJC15, MJS15, Outside Diameter 19/32 in, System of Measurement Inch, Maximum Speed 8,000 RPM, Horsepower @ 100 RPM 0.0159 hp, Spider Material Polyurethane, Maximum Torque 5 in-lb, Parallel Misalignment 0.004 in, Durometer Hardness 92A, Axial Motion 0.02 in, Angular Misalignment 0.9 Degrees , Color Yellow, Compatible Hub Manufacturer Part Number JC10, JS10, MJC15, MJS15, Deform Torque 10 lb-in, Fail Safe Yes