Custom Worm 
Gears
Worm Gears are best angle drives providing huge acceleration ratios on comparatively short center distances from 1/4” to 11”. When correctly mounted and lubricated they function as the quietist and smoothest running type of gearing. Due to the high ratios feasible with worm gearing, optimum speed reduction could be accomplished in less space than many other types of gearing. Worm and worm gears operate on nonintersecting shafts at 90° angles.
EFFICIENCY of worm gear drives depends to a large extent on the helix position of the worm. Multiple thread worms and gears with higher helix angle prove 25% to 50% more efficient than single thread worms. The mesh or engagement of worms with worm gears generates a sliding action causing considerable friction and greater lack of efficiency beyond other types of gearing. The usage of hardened and floor worm swith bronze worm gears raises efficiency.
LUBRICATION is an essential factor to improve effectiveness in worm gearing. Worm equipment action generates considerable high temperature, decreasing efficiency. The amount of power transmitted at a given temperature increases as the performance of the custom worm gear gearing raises. Proper lubrication enhances efficiency by reducing friction and temperature.
RATIOS of worm gear sets are dependant on dividing the amount of teeth in the apparatus by the number of threads. Thus solitary threads yield higher ratios than multiple threads. All Ever-power. worm gear models can be found with either left or right hand threads. Ever-Power. worm equipment sets are offered with One, Double, Triple and Qua-druple Threads.
Protection PROVISION: Worm gearing shouldn’t be used while a locking mechanism to hold large weights where reversing action can cause harm or injury. In applications where potential damage is nonexistent and self-locking is preferred against backward rotation after that use of a single thread worm with a low helix angle automatically locks the worm equipment travel against backward rotation.