Custom Worm Gears
Worm Gears are best angle drives providing large acceleration ratios on comparatively brief center distances from 1/4” to 11”. When correctly installed and lubricated they function as quietist and smoothest running type of gearing. Due to the high ratios feasible with worm gearing, optimum speed reduction can be accomplished in much less space than a great many other types of gearing. Worm and worm gears are powered by non-intersecting shafts at 90° angles.
EFFICIENCY of worm gear drives depends to a big degree on the helix position of the worm. Multiple thread worms and gears with higher helix position prove 25% to 50% better than solitary thread worms. The mesh or engagement of worms with worm gears generates a sliding action leading to considerable friction and greater lack of efficiency beyond other types of gearing. The utilization of hardened and ground worm swith bronze worm gears increases efficiency.
LUBRICATION is an essential factor to improve efficiency 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 gearing raises. Proper lubrication enhances efficiency by reducing friction and heat.
RATIOS of worm gear sets are dependant on dividing the amount of teeth in the apparatus by the amount of threads. Thus single threads yield higher ratios than multiple threads. All Ever-power. worm gear models can be found with custom worm gear china either still left or right hands threads. Ever-Power. worm gear sets are offered with One, Double, Triple and Qua-druple Threads.
Basic safety PROVISION: Worm gearing should not be used while a locking mechanism to carry large weights where reversing actions could cause harm or injury. In applications where potential damage is nonexistent and self-locking is preferred against backward rotation then use of an individual thread worm with a minimal helix angle immediately locks the worm gear travel against backward rotation.