Hollow Shaft Rotary Actuator

Harmonic Drive® rotary actuators are the easiest solution for your high precision motion control applications. Performance matched precision gearing, motors, and encoders are designed to provide a power dense, cost effective solution. The SHA-SG is a hollow shaft actuator with a compact outer diameter and exceptional torque/volume ratio. SHA Series AC Servo Actuators provide high torque and highly accurate rotary operation.
These servo actuators utilize Harmonic Drive® precision gears combined with a brushless servomotor and magnetic absolute encoder. The SHA Series is an advanced version of the FHA series AC Servo Actuators, featuring a larger hollow shaft with a smaller, outside diameter.
The SHA Series is designed to operate with REL Series and HA-800 drivers.

• Zero backlash
• High torque
• Compact, slim design
• Large center through hole
• Low voltage winding available for SHA25A
• Peak torque 73~3419 Nm
• Max speed 17.4~117.6

Harmonic Drive® rotary actuators deliver both high force and outstanding positional accuracy. Harmonic Drive manufactures our own cross roller bearings, harmonic and planetary gearing, state of the art brushless servo motors and encoders. By having complete control over the design of these critical elements, we have designed the performance matched components needed to develop extremely compact actuators with the highest power density while incorporating unique features such as a hollow shaft. Performance matched precision gearing, motors, and encoders are designed to provide a power dense, cost effective solution.

The availability of these complete servo actuators eliminate the need for machine designers to individually select a motor and gearhead as well as the effort needed to characterize its expected performance. Our highly reliable and performance tested servo actuators and Servo Drives are the fastest means to get your machine design up and running.