Harmonic Drive FHA-C Mini Rotary Actuators

Harmonic Drive FHA-C Mini combines a strain-wave gear, brushless servo motor and output bearing in a compact rotary actuator. This review covers the externally driven FHA-8C, FHA-11C and FHA-14C family, distinguishing encoder and hollow-shaft choices from the separate integrated-drive version.
Key Specifications
Sizes | FHA-8C, FHA-11C and FHA-14C |
Reduction ratios | 30:1, 50:1 or 100:1 |
Example maximum torque | FHA-14C: 9, 18 or 28 Nm for ratios 30, 50 or 100 respectively; maximum, not continuous torque |
Example maximum speed | 200, 120 or 60 rpm for ratios 30, 50 or 100 respectively; evaluate the actual operating curve |
Encoder selection | Incremental, single absolute or dual absolute variants |
Hollow passage | Manufacturer restricts the hollow-shaft feature to the incremental-encoder version |
Mechanical support | Integrated cross-roller output bearing; permissible load depends on size/configuration |
Drive scope | External matched servo drive required for the configuration reviewed; integrated-drive FHA Mini is a separate version |
Applications and Industries
Compact machine rotary axes and robotic mechanisms where a geared actuator's output bearing, torque-speed capability and selected feedback meet the load.
Industrial automation; robotics; precision machinery; electronics assembly
Review Summary
FHA-C Mini is a useful candidate for a compact geared rotary axis when the load fits the selected actuator's torque, bearing and speed limits. Select the full encoder, winding, ratio and drive combination. A high calculated encoder count does not replace positioning-accuracy data, and the hollow passage is configuration-dependent.
Price and Configuration
Request a quote for the selected configuration,quantity and delivery schedule. Confirm the exact model,options,integration scope and support terms.



















