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