Output Shaft Insert Product Type Output Shaft Insert Overall Length 7.37 in Compatible Gearmotor Grainger Part Number 46E526 46E527 46E528 46E529 46E530 46E531 46E532 46E533 46E534 46E535 46E536 46E537 46E538 46E539 46E540 46E541 46E542 46E543 46E544 46E545 46E546 46E547 46E548 46E549 46E550 Shaft Diameter 1 1/4 in For Shaft Diameter 1 1/4 in Includes Retaining Rings Overall Diameter 1.2485 in