Rotary Actuators

The Rotary Actuator consists of a small-angle permanent magnet stepper motor coupled with a Harmonic Drive Speed reducer, with a large rotating output flange member. The family of Rotary Actuators is based on heritage design with a wide range of step sizes available. The options include Stepper or Brushless DC Motors, Direct Drive and Gear Transmissions, as well as several options for position feedback such as optical encoders, resolvers, potentiometers, and hall effect sensors.

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Featured Products

High Gear Ratio M8 Rotary Incremental Actuator

The High Torque M8 rotary incremental actuator is compact, closely integrated design made up of two key elements: a motor and a multi-stage speed reducer. The motor is a small angle permanent magnet stepper with relatively high holding torque.

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Micro3 Rotary Incremental Actuator

The Micro3 rotary incremental actuator is a compact, closely integrated design made up of two key elements: a rotary actuator and a standard Type 3 speed reducer and output flange. The motor is a small angle permanent magnet stepper with relatively high holding torque. 

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High Torque/Small Angle Rotary Incremental Actuator

The High Torque Type 5 rotary incremental actuator is a compact, closely integrated design made up of two key elements: a motor and a multi-stage speed reducer. The motor is the heritage 1.5 degree permanent magnet stepper with relatively high un-powered holding torque.

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Model HT1 Rotary Incremental Actuator

The Moog Type HT-1 Rotary Incremental Actuator is a new addition to the rotary actuator product line. It is a compact, closely integrated coaxial design composed of a small size permanent magnet stepper motor driving the output stage through a gear transmission consisting of a larger size harmonic drive.

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Type M8 Rotary Incremental Actuator

The M8 Rotary Incremental Actuator is a compact, closely integrated design made up of two key elements: a motor and a harmonic drive speed reducer. The motor is a small angle permanent magnet stepper with relatively high holding torque.

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Ultra-Performance Type 3 Actuator and Gimbal

The UPT3 is a closely-integrated package that utilizes all available space to significantly increase performance and reliability. While design and performance margins are elevated with the introduction of this actuator, key interface envelope dimensions of the Moog heritage Type 3 are preserved in order to facilitate interchangeability.

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Type 3 Rotary Incremental Actuator

The Type 3 actuator is one of our more popular designs, with hundreds of units delivered and successfully operating on-orbit. The standard design is based on the heritage actuator concept, a compact coaxially-nested motor and harmonic drive gear system.

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Model Type 1 Rotary Incremental Actuator

The Moog Type 1 rotary incremental actuator is a compact, closely integrated design made up of two key elements, a motor and a harmonic drive speed reducer. The motor is a small angle permanent magnet stepper with high holding torque. 

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