Best choice of gearing when high drive decrease is required. Worm Tires resemble spur gears with the help of a throat cut into the O.D. of wheel. The throat permits the worm wheel to fully envelope the threads of the worm. Threads, not teeth are cut on the worm, and by adjusting the number of threads, different ratios may be accomplished without altering mounting plans. A distinctive feature of Worm and Wheel assemblies is definitely their capability to prohibit back driving
Pitch: 16 to 64 DP and 1.5 to .5 MOD
Materials: Brass for Worm Gear and Worm wheel gear 
STAINLESS for Worm
Single, Double or Quad Start