Custom Worm Gears
Worm Gears are best angle drives providing large rate custom worm gear ratios on comparatively short center distances from 1/4” to 11”. When properly mounted and lubricated they function as the quietist and smoothest operating type of gearing. Due to the high ratios possible with worm gearing, optimum speed reduction could be accomplished in much less space than a great 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 sizable extent on the helix position of the worm. Multiple thread worms and gears with higher helix angle prove 25% to 50% more efficient than solitary thread worms. The mesh or engagement of worms with worm gears produces a sliding action causing considerable friction and higher loss of efficiency beyond other styles of gearing. The usage of hardened and ground worm swith bronze worm gears raises efficiency.
LUBRICATION can be 
an essential factor to boost performance in worm gearing. Worm gear action generates considerable high temperature, decreasing efficiency. The amount of power transmitted at confirmed temperature increases as the efficiency of the gearing increases. Proper lubrication enhances efficiency by reducing friction and temperature.
RATIOS of worm gear sets are dependant on dividing the amount of teeth in the gear by the number of threads. Thus one threads yield higher ratios than multiple threads. All Ever-power. worm gear models are available with either still left or right hands threads. Ever-Power. worm gear sets are offered with Single, Double, Triple and Qua-druple Threads.
Basic safety PROVISION: Worm gearing should not be used while a locking mechanism to hold heavy weights where reversing action can cause harm or injury. In applications where potential damage is non-existent and self-locking is preferred against backward rotation after that use of an individual thread worm with a minimal helix angle automatically locks the worm gear get against backward rotation.