Special Features:

1/4 x 1/3 keyway, 2.375inch long; 8.25 inch wide; 7.88 inch tall; internal involute spline; 16/32 pitch; pitch diameter 1.250 ;

Properties:

A group of gear(s) and/or worm(s), of fixed ratio, specifically designed for the purpose of decreasing the speed from the driver(s) to the driven shaft or shafts; having no reversing feature except by reversing the prime mover. See also transmission (as modified) and gearcase-motor.