Custom Worm Gears
Worm Gears are ideal angle drives providing large acceleration ratios on comparatively short center custom worm gear distances from 1/4” to 11”. When properly installed and lubricated they function as quietist and smoothest operating type of gearing. Because of the high ratios possible with worm gearing, optimum speed reduction can be accomplished in much less space than many other types of gearing. Worm and worm gears operate on non-intersecting shafts at 90° angles.
EFFICIENCY of worm gear drives depends to a large level on the helix angle 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 creates a sliding action leading to considerable friction and higher lack of efficiency beyond other styles of gearing. The use of hardened and surface worm swith bronze worm gears increases efficiency.
LUBRICATION can be an essential factor to boost efficiency in worm gearing. Worm gear action generates considerable high temperature, decreasing efficiency. The amount of power transmitted at confirmed temperature raises as the efficiency of the gearing increases. Proper lubrication enhances effectiveness by reducing friction and heat.
RATIOS of worm equipment 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 units can be found with either left or right hand threads. Ever-Power. worm equipment sets are offered with Single, Double, Triple and Qua-druple Threads.
Security PROVISION: Worm gearing should not 
be used while a locking mechanism to hold heavy weights where reversing actions could cause harm or injury. In applications where potential harm is non-existent and self-locking is preferred against backward rotation then use of an individual thread worm with a low helix angle instantly locks the worm gear travel against backward rotation.