These plastic gears are lighter and quieter than metal gears—pair them with metal worms for lubrication-free operation. Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle and module.

Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.

Acetal gears are lightweight, and resist corrosion and chemicals. They absorb less moisture than nylon gears, so they’re less prone to dimensional changes. They’re best suited for light duty applications, such as prototyping.

Nylon gears are lightweight and stronger than acetal gears.

For technical drawings and 3-D models, click on a part number.

Reduce shaft speed and increase torque while transmitting motion at a 90° angle. Speed reducers require lubrication (not included). Connect to a motor using a shaft coupling (not included).

Base mounting plates (sold separately) allow you to mount speed reducers to machinery or other surfaces where fastening into the bottom of the speed reducer is not possible.

Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.

For technical drawings and 3-D models, click on a part number.

With output shaft openings on both sides, these speed reducers adapt to fit multiple configurations. Use them to transmit motion at a 90° angle while reducing speed and increasing torque. All are permanently lubricated to save maintenance time and effort.

Plug-in shafts (sold separately) convert output drives from female to male. Shafts for two outputs are long enough to extend from both sides of the speed reducer.

For technical drawings and 3-D models, click on a part number.

Mount these speed reducers to a NEMA 56C motor to transmit motion at a 90° angle while reducing speed and increasing torque. All require lubrication (not included).

Base mounting plates (sold separately) allow you to mount speed reducers to machinery or other surfaces where fastening into the bottom of the speed reducer is not possible.

Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.

Convert output drives from female to male.

Shafts for two outputs are long enough to extend from both sides of the speed reducer

For technical drawings and 3-D models, click on a part number.

Cut shaft speed and increase torque while transmitting motion at a 90° angle in food, pharmaceutical, and other sanitary environments. Made of stainless steel, these reducers won’t corrode from frequent washdowns with harsh cleaners and sanitizers. With an IP69K rating, they’ll also withstand dust and high-pressure, high-temperature washdowns. All have a rounded design and polished surfaces, so there are no crevices where bacteria can grow, reducing the chance of a foodborne illness. Double input and output seals block out contaminants and prevent lubricant leaks.

These speed reducers have multiple gear teeth that are engaged at the same time to create more torque than other same-size reducers. They’re also more durable for a long service life. All are permanently lubricated to save maintenance time and effort. Connect them to a motor using a shaft coupling (not included).

Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to the shaft, such as pulleys and sprockets.

For technical drawings and 3-D models, click on a part number.