Product profile
FHA-C Rotary Actuator
Harmonic Drive FHA-C is a family of low-profile hollow-shaft rotary servo actuators combining a precision harmonic gear, brushless servo motor and encoder...
Facts
- Company
- Harmonic Drive
- Product type
- component_family
- Status
- commercial
- Primary capability
- robot_joint_actuation
- Website
- https://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c
About FHA-C Rotary Actuator
Harmonic Drive FHA-C is a family of low-profile hollow-shaft rotary servo actuators combining a precision harmonic gear, brushless servo motor and encoder for robotic joints and precision machinery.
Market context
https://zlsbkmaixmmnjrgpkcyp.supabase.co/storage/v1/object/public/robotics_assets/products/korthos-product-candidates-2026-08-23-batch-35-net-new/harmonic-drive-fha-c-official-16x9.jpg, hollow_shaft_rotary_actuator, hollow_shaft_servo_actuator_family, 1600, 900, ffc1015d448a18e39da4fbd62542f8cecb6a0148840719bb443db497bd359659, reviewed_16x9_official_media, Rotary Actuator Family, robotics_assets, https://www.harmonicdrive.net/media/1913/fha-c.jpg, https://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c, official, https://zlsbkmaixmmnjrgpkcyp.supabase.co/storage/v1/object/public/robotics_assets/products/korthos-product-candidates-2026-08-23-batch-35-net-new/harmonic-drive-fha-c-official-16x9.jpg, Approved by user after strict contact-sheet review; exact 1600x900 JPEG, opaque, no added border or letterbox., generic_component, products/korthos-product-candidates-2026-08-23-batch-35-net-new/harmonic-drive-fha-c-official-16x9.jpg, 2026-08-23, rotary_actuator, false, source_photo_16x9_crop, components, source_photo_16x9_crop, Rotary Actuator Family, actuators, component_category_actuators, components, actuation, rotary_actuator, components
Summary
Type: Rotary actuator family
Core: 39–820 Nm hollow-shaft servo actuator range
Function: Provides high-torque, low-backlash rotary motion while allowing cables, tubing or lasers through the output axis
Audience: Robot OEMs, actuator engineers and motion-control integrators
Specifications
- features
- Zero backlash and large hollow through-hole
- gear_ratios
- 50:1, 80:1, 100:1, 120:1 and 160:1 depending on size
- maximum_max_speed_rpm
- Family maximum speed range up to 96 rpm rpm
- maximum_max_torque_nm
- Family peak/max torque reaches 820 Nm Nm
- minimum_max_speed_rpm
- Family maximum speed range down to 22 rpm rpm
- minimum_max_torque_nm
- Family peak/max torque starts at 39 Nm Nm
- sizes
- FHA-17C, FHA-25C, FHA-32C and FHA-40C
Operations
- Environment
- robot_joint, robotic_arm, machine_tool, industrial_machine
- Primary user
- robot_oems, actuator_engineers, robot_integrators, motion_control_engineers
- Role
- robot_joint_actuation, precision_motion, servo_motion, industrial_automation
- Interaction model
- hollow_shaft_integration, servo_control, precision_transmission, encoder_feedback
- Mobility class
- robot_joint_component, integrated_actuator, fixed_component
- Product detail
- https://zlsbkmaixmmnjrgpkcyp.supabase.co/storage/v1/object/public/robotics_assets/products/korthos-product-candidates-2026-08-23-batch-35-net-new/harmonic-drive-fha-c-official-16x9.jpg, hollow_shaft_rotary_actuator, hollow_shaft_servo_actuator_family, 1600, 900, ffc1015d448a18e39da4fbd62542f8cecb6a0148840719bb443db497bd359659, reviewed_16x9_official_media, Rotary Actuator Family, robotics_assets, https://www.harmonicdrive.net/media/1913/fha-c.jpg, https://www.harmonicdrive.net/products/rotary...