Gear motors, or gearmotors, are electric motors connected to some type of enclosed gear reduction box. They are sold and used as a single integral unit, and they offer the ability to reduce speed while increasing torque. Gear motors come in a wide array of shapes, sizes and types of gearing. The most common types are right-angle gear motors and inline gear motors.
Gear Motor Basics
Gearmotors are basic in design, using some combination of plastic and/or metal. One of their greatest benefits is that they eliminate the need of having a separate gearbox and electric motor.
The motor powers the gearbox, turning the box and creating energy. As a packaged set, they work together to increase torque (force) while keeping RPMs (speed) low.
Gear Motor Types
- Right-angle gearmotors use worm, bevel or hypoid gearing.
- Inline gearmotors typically use spur gears or planetary gear sets.
Of these five gear sets or gearings, the most common are worm, spur and planetary.
Gear motors can be purchased with a variety of AC (alternating current) or DC (direct current) motor types. They also come in many reduction ratios to accommodate a vast number of applications such as automatic door operators, food & beverage equipment, and robotics.
To learn more about gear motors, we invite you to read our previous post, “Why are DC Motors Mostly Gear Motors?”