Brand: SureMotion Item: Drive coupling For Use With: LAHP-33 series actuators and NEMA 23 stepper motors Material: Aluminum alloy Outside Diameter: 19mm Bore Diameter: 5mm Attachment Style: Clamp Coupling Type: High gain Rated Torque: 2.1 N-m Maximum Angular Misalignment: 1.5 degrees Coupling Size: 19 Bore Diameter 2: 1/4in SureMotion drive coupling, high gain, aluminum alloy, clamp, size 19, 5 x 6.35mm (1/4in) bore. For use with LAHP-33 series actuators and NEMA 23 stepper motors.