Discontinued Series

CHA Servo actuator with hollow shaft

Large hollow shaft and precision output bearing

CHA Series Hollow Shaft Servo Actuators combine a synchronous servo motor, Unit from the CPU-H Series, feedback sensor and a high capacity precision output bearing. Available in eight sizes with gear ratios between 30 and 160:1, the actuators can provide maximum torques from 9 to 1840 Nm. The output bearing with high tilting capacity often allows direct attachment of heavy payloads without the need for further support, thereby providing simple and space saving design installations.

Hollow shaft diameter

12 - 45

Maximum speed

19 - 283

Maximum torque

9 - 1840


30 - 160

Number of sizes


Many possible combinations 

To adapt to your specific application, the CHA Series offers many possible combinations when selecting the motor winding, motor feedback, brake, various sensors and cable as well as connector options. The integrated hollow shaft can be used to feed through supply lines or services for additional axes, enabling space saving designs with minimal installation dimensions required. With a reinforced output bearing offering maximum tilting rigidity, the actuators can easily absorb and accurately guide heavy payloads. The accurate positioning of the actuator ensures stable machine characteristics, increased operating reliability and consistent quality. With high protection ratings and corrosion resistance, the series is perfectly suited for use in harsh and demanding environmental conditions.

Integrated hollow shaft and high capacity precision output bearing

By combining the CHA Actuators with the specially adapted YukonDrive® Servo Controllers, it is possible to provide a single source supply for a pre-configured drive system tailored to suit your application. Alternatively, the flexible configuration of the actuator ensures compatibility with almost any servo controller on the market.


  • Industrial robot, automation and handling
  • Special environments
  • Communications engineering
  • Machine tools
  • Optical equipment


  • Robots for simulation
  • Surveillance systems
  • Camera positioning
  • Spark erosion machines
  • Ophthalmic optics



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