EP also sells equipment tooth measuring products called Equipment GAGES! Gear Gages reduce mistakes, save time and money when identifying and purchasing gears. These pitch templates are available in nine sets to identify all the regular pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, External Involute Splines, Metric Module “MOD”, Stub Tooth, Good Pitches, Coarse Pitches and Unusual Pitches. Refer to the section on Equipment GAGES for catalog amounts when ordering.
Materials recommended for worms is usually hardened steel and bronze for worm gears. However, depending on the application form unhardened metal worms operate adequately and more economically with cast iron worm gears at 50% horsepower ratings. Furthermore to steel and hardenedsteel, worms can be found in stainless, light weight aluminum, bronze and nylon; worm gears are available in steel, hardened metal, stainless, aluminum, nylon and non-metallic (phenolic).
SAFETY PROVISION: Worm gearing should not be used because a locking mechanism to carry weighty weights where reversing actions can cause harm or damage. In applications where potential damage is non-existent and self-locking is desired against backward rotation then use of an individual thread worm with a minimal helix angle immediately locks the worm gear drive against backward rotation.
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 EP inc. worm equipment sets are available with either still left or right hands threads. EP inc. worm gear sets are offered with Single, Double, Triple and Qua-druple Threads.
LUBRICATION is an essential factor to boost effectiveness in worm gearing. Worm equipment action generates considerable temperature, decreasing efficiency. The amount of power transmitted at a given temperature raises as the performance of the gearing increases. Proper lubrication enhances efficiency by reducing friction and temperature.
Worm wheel gear, the right option for you.