Best choice of gearing when high drive decrease is required. Worm Wheels 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 really tooth are cut on the worm, and 
by adjusting the amount of threads, different ratios can be achieved without altering mounting plans. A distinctive feature of Worm and Wheel assemblies is their capability to prohibit back driving
Pitch: 16 to 64 DP and 1.5 to .5 MOD
Material: Brass for Worm Gear and Stainless Steel for Worm
Worm wheel gear Single, Double or Quad Start