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Worm wheel gear

EP also sells equipment tooth measuring products called GEAR GAGES! Gear Gages decrease mistakes, save money and time when identifying and ordering gears. These pitch templates can be found in nine sets to recognize all the standard pitch sizes: Diametral Pitch “DP”, Circular Pitch “CP”, External Involute Splines, Metric Module “MOD”, Stub Tooth, Great Pitches, Coarse Pitches and Unusual Pitches. Make reference to the section on Equipment GAGES for catalog numbers when ordering.

Materials recommended for worms is hardened steel and bronze for worm gears. Nevertheless, depending on the application form unhardened steel worms operate adequately and more economically with cast iron worm gears at 50% horsepower ratings. In addition to steel and hardenedsteel, worms can be found in stainless, aluminium, bronze and nylon; worm gears can be found in steel, hardened metal, stainless, light weight aluminum, nylon and non-metallic (phenolic).

Protection PROVISION: Worm gearing should not be used since a locking mechanism to hold weighty weights where reversing actions can cause harm or damage. In applications where potential damage is nonexistent and self-locking is preferred against backward rotation then use of an individual thread worm with a low helix angle automatically locks the worm equipment drive against backward rotation.

RATIOS of worm gear sets are dependant on dividing the number of teeth in the gear by the amount of threads. Thus single threads yield higher ratios than multiple threads. All EP inc. worm equipment sets can be found with either left or right hand threads. EP inc. worm gear sets are offered with Single, Dual, Triple and Qua-druple Threads.

LUBRICATION is an essential factor to boost effectiveness in worm gearing. Worm equipment action generates considerable heat, decreasing efficiency. The quantity of power transmitted at confirmed temperature improves as the effectiveness of the gearing increases. Proper lubrication enhances effectiveness by reducing friction and warmth.

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