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The steel can be used for high strength worm gears (worm wheel) and steel may be plain carbon steel or alloy steel. The steel gears usually are heat treated in order to combine properly the toughness and tooth hardness.
The phosphor bronze is widely used for worms drive in order to reduce wear of the worms which is excessive with cast iron or steel.
Worm gear models are usually used to lessen speed and boost torque. Because the worm travel undergoes more contact pressure cycles than the worm gear, the worm travel is generally of a better material.
• Cast iron provides toughness and ease of manufacture.
• Cast steel provides a lot easier fabrication, strong doing work loads and vibration resistance.
• Carbon steels are economical and good, but are susceptible to corrosion.
• Aluminum is utilized when low equipment inertia with some resiliency is required.
• Brass is inexpensive, simple to mold and corrosion tolerant.
• Copper is easily shaped, conductive and corrosion tolerant. The gear’s power would increase if bronzed.
• Plastic is economical, corrosion resistant, quiet operationally and will overcome missing pearly whites or misalignment. Plastic material is a smaller amount robust than metal and is susceptible to temperature adjustments and chemical corrosion. Acetal, delrin, nylon, and polycarbonate plastics are normal.

This 27 tooth brass worm gear is intended to be used in combination with a worm gear to create a 27:1 reduction in speed while also changing the orientation of the rotating axis by 90 degrees. This equipment fastens to a 1/4″ shaft utilizing a specific 1/4″ D-hub to be utilized with 1/4″ D-shaft.

The manufacturing ways of worms are roughly divided among cutting, heat treated and ground after cutting and rolling. And for worm wheels, they could be roughly divided among cutting pearly whites, cutting tooth after casting, and the teeth cutting after the outdoors rim can be cast around the center of the blank.