Brand: SureMotion Item: Drive coupling hub Material: Aluminum alloy Requires: DC-DDS50 torque disc Outside Diameter: 50mm Bore Diameter: 14mm Attachment Style: Clamp Overall Length: 59.7mm Coupling Type: Oldham Rated Torque: 29.9 N-m Maximum Angular Misalignment: 3.0 degrees Coupling Size: 50 Maximum RPM: 3000 Maximum Parallel Misalignment: 0.51mm SureMotion drive coupling hub, Oldham, aluminum alloy, clamp, size 50, 14mm bore. Requires DC-DDS50 torque disc.