Harmonic Drive FHA-C, PR and H Hollow-Shaft Actuators
Harmonic Drive FHA-C, PR and H Hollow-Shaft Actuators
Harmonic Drive FHA-C combines strain-wave reduction, a brushless servomotor, output support and motor feedback in a low-profile hollow-shaft actuator. The standard, PR and high-voltage H configurations have different ordering options and performance data. These versions use an external servo drive; the actuator’s hollow bore and gear ratio do not establish the drive interface or a complete safety-rated robot joint.
Review Summary
Consider FHA-C for an OEM rotary axis that benefits from a central passage and a matched motor/reducer assembly. Choose standard, PR or H by the actual winding, feedback, positioning duty and environment. Do not transfer H-series continuous torque, a PR repeatability figure or an optional IP65 rating to every FHA-C actuator.
Frame families 17 / 25 / 32 / 40; external servo drive required Standard and PR ratio menu 50 / 80 / 100 / 120 / 160 in current ordering tables; exact configuration applies H ratio menu 50 / 100 / 160 in the high-voltage ordering table Standard / PR motor feedback US250 or E250 incremental encoder options; 2500 pulses per motor revolution with different wiring arrangements H winding and feedback H denotes 680 VDC winding/bus class for a matched servo system; EnDat and HIPERFACE options depend on full code Protection choice H ordering table: standard IP44, P option IP65; H alone does not identify an IP65 unit PR size 17, ratio 100 example 57 Nm maximum torque; 48 rpm maximum output speed; 40 arcsec one-way accuracy; ±5 arcsec one-way and 30 arcsec bidirectional repeatability entries H size 17, ratio 50 example 15 Nm continuous; 39 Nm maximum; 96 rpm maximum output speed H size 40, ratio 160 example 400 Nm continuous; 823 Nm maximum; 22 rpm maximum output speed Motor-derived quadrature scale Standard/PR tables: 500000 to 1600000 output-equivalent counts/revolution across ratios 50–160; not independent output measurement Brake and cable options Full model code selects brake, feedback, cable exit and other supported options Price Request a quote for exact actuator, compatible drive, feedback, brake, cables and protection Applications and Industries
Consider FHA-C for robot mechanisms, machine-tool axes, packaging equipment and related OEM rotary motion where the selected hollow-shaft actuator and external drive fit the load and environment. Suitability depends on the exact model and complete machine integration, including any protection or holding requirements.
Industrial automation
Request a quote for the exact configuration,quantity and delivery schedule.
| Frame families | 17 / 25 / 32 / 40; external servo drive required |
| Standard and PR ratio menu | 50 / 80 / 100 / 120 / 160 in current ordering tables; exact configuration applies |
| H ratio menu | 50 / 100 / 160 in the high-voltage ordering table |
| Standard / PR motor feedback | US250 or E250 incremental encoder options; 2500 pulses per motor revolution with different wiring arrangements |
| H winding and feedback | H denotes 680 VDC winding/bus class for a matched servo system; EnDat and HIPERFACE options depend on full code |
| Protection choice | H ordering table: standard IP44, P option IP65; H alone does not identify an IP65 unit |
| PR size 17, ratio 100 example | 57 Nm maximum torque; 48 rpm maximum output speed; 40 arcsec one-way accuracy; ±5 arcsec one-way and 30 arcsec bidirectional repeatability entries |
| H size 17, ratio 50 example | 15 Nm continuous; 39 Nm maximum; 96 rpm maximum output speed |
| H size 40, ratio 160 example | 400 Nm continuous; 823 Nm maximum; 22 rpm maximum output speed |
| Motor-derived quadrature scale | Standard/PR tables: 500000 to 1600000 output-equivalent counts/revolution across ratios 50–160; not independent output measurement |
| Brake and cable options | Full model code selects brake, feedback, cable exit and other supported options |
| Price | Request a quote for exact actuator, compatible drive, feedback, brake, cables and protection |
