Most suitable choice of gearing when high drive decrease is required. Worm Wheels resemble spur gears with the addition of a Worm wheel gear throat cut into the O.D. of wheel. The throat permits the worm wheel to totally envelope the threads of the worm. Threads, not teeth are cut on the worm, and by adjusting the number of threads, different ratios can be achieved without altering mounting arrangements. A unique feature of Worm and Wheel assemblies is certainly their capability to prohibit back driving
Pitch: 16 to 64 DP and 1.5 to .5 MOD
Material: Brass for Worm Gear and 
STAINLESS for Worm
Single, Dual or Quad Start