Data captured: · Published: · Update delayed: this release is over 8 days old.
Series reference image, not this exact model · from harmonicdrive.net
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1 / 1哈默纳科（上海）商贸有限公司 · Harmonic Drive Systems
FHA-17C-PR
B · Motors · active · sources 3 · multiple values 1specs 25evidence [n]sources 3multiple values 1
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Specs.
Check before you order.
field · keyvaluesource sentencesourceEvidenceRetrieved · Changed
Position sensor typeposition_sensor_type
value
Origin and End Limits
source sentencePosition Sensor Origin and End Limits L
sourcehttps://www.harmonicdrive.net/_hd/content/documents1/FHA-C-PR%20Brochure.pdf · p.2 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Winding resistancewinding_resistance
value
200 V
source sentenceconstant *1 200 V N·m/A
sourcehttps://www.harmonicdrive.net/_hd/content/documents1/FHA-C-PR%20Brochure.pdf · p.3 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Winding inductancewinding_inductance
value
200 V
source sentenceconstant *1 200 V N·m/A
sourcehttps://www.harmonicdrive.net/_hd/content/documents1/FHA-C-PR%20Brochure.pdf · p.3 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
10 values for this fieldConfirm with the supplier.
Reduction ratioreduction_ratio
valuemeasured at How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 5050
source sentenceGear Ratio Gear Ratio 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-pr · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
valuemeasured at How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 8080
source sentenceGear Ratio Gear Ratio 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-pr · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
valuemeasured at How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 100100
source sentenceGear Ratio Gear Ratio 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-pr · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
valuemeasured at How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 120120
source sentenceGear Ratio Gear Ratio 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-pr · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
valuemeasured at How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 160160
source sentenceGear Ratio Gear Ratio 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-pr · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 50 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
.21
source sentenceMoment of Inertia(GD 2 /4) kg.m 2 .21 .53 .83 1.2 2.1 .90 2.3 3.5 5.2 9.2 2.1 5.3 8.2 12 21 5.5 14 22 32 56
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 80 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
.53
source sentenceMoment of Inertia(GD 2 /4) kg.m 2 .21 .53 .83 1.2 2.1 .90 2.3 3.5 5.2 9.2 2.1 5.3 8.2 12 21 5.5 14 22 32 56
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 100 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
.83
source sentenceMoment of Inertia(GD 2 /4) kg.m 2 .21 .53 .83 1.2 2.1 .90 2.3 3.5 5.2 9.2 2.1 5.3 8.2 12 21 5.5 14 22 32 56
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 120 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 1.212000000 g·cm²
source sentenceMoment of Inertia(GD 2 /4) kg.m 2 .21 .53 .83 1.2 2.1 .90 2.3 3.5 5.2 9.2 2.1 5.3 8.2 12 21 5.5 14 22 32 56
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 160 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 2.121000000 g·cm²
source sentenceMoment of Inertia(GD 2 /4) kg.m 2 .21 .53 .83 1.2 2.1 .90 2.3 3.5 5.2 9.2 2.1 5.3 8.2 12 21 5.5 14 22 32 56
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Weightweight
valuemeasured at Reduction ratio Gear Ratio: 50 / 80 / 100 / 120 / 160 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 2.82.8 kg
source sentenceMass kg 2.8 2.8 2.8 2.8 2.8 4.7 4.7 4.7 4.7 4.7 7.1 7.1 7.1 7.1 7.1 13.6 13.6 13.6 13.6 13.6
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
valuemeasured at How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 5050
source sentenceGear Ratio Gear Ratio 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-pr · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
valuemeasured at How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 8080
source sentenceGear Ratio Gear Ratio 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-pr · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
valuemeasured at How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 100100
source sentenceGear Ratio Gear Ratio 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-pr · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
valuemeasured at How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 120120
source sentenceGear Ratio Gear Ratio 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-pr · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
valuemeasured at How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 160160
source sentenceGear Ratio Gear Ratio 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160 50 80 100 120 160
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-pr · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 50 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
.21
source sentenceMoment of Inertia(GD 2 /4) kg.m 2 .21 .53 .83 1.2 2.1 .90 2.3 3.5 5.2 9.2 2.1 5.3 8.2 12 21 5.5 14 22 32 56
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 80 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
.53
source sentenceMoment of Inertia(GD 2 /4) kg.m 2 .21 .53 .83 1.2 2.1 .90 2.3 3.5 5.2 9.2 2.1 5.3 8.2 12 21 5.5 14 22 32 56
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 100 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
.83
source sentenceMoment of Inertia(GD 2 /4) kg.m 2 .21 .53 .83 1.2 2.1 .90 2.3 3.5 5.2 9.2 2.1 5.3 8.2 12 21 5.5 14 22 32 56
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 120 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 1.212000000 g·cm²
source sentenceMoment of Inertia(GD 2 /4) kg.m 2 .21 .53 .83 1.2 2.1 .90 2.3 3.5 5.2 9.2 2.1 5.3 8.2 12 21 5.5 14 22 32 56
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 160 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 2.121000000 g·cm²
source sentenceMoment of Inertia(GD 2 /4) kg.m 2 .21 .53 .83 1.2 2.1 .90 2.3 3.5 5.2 9.2 2.1 5.3 8.2 12 21 5.5 14 22 32 56
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Weightweight
valuemeasured at Reduction ratio Gear Ratio: 50 / 80 / 100 / 120 / 160 · How it was measured FHA-C PR Hollow Shaft Rotary Actuators | Harmonic Drive
FHA-C PR Rotary Actuator
A large hole through these brushless actuator allows wires, tubing, laser beams or other components to pass directly through the axis of rotation.
as printed 2.82.8 kg
source sentenceMass kg 2.8 2.8 2.8 2.8 2.8 4.7 4.7 4.7 4.7 4.7 7.1 7.1 7.1 7.1 7.1 13.6 13.6 13.6 13.6 13.6
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-pr · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
specs 25, 25 shown
Source documents.
3 documents · 1 fields with several values
3 documents
harmonicdrive.net/products/rotary-actuators/actuators-hollow-shaft/fha-c-prMaker's document · 11 valuesRetrieved 2026-09-08
harmonicdrive.net/products/rotary-actuators/hollow-shaft-servo-actuators/fha-c-prMaker's document · 11 valuesRetrieved 2026-09-08
harmonicdrive.net/_hd/content/documents1/FHA-C-PR%20Brochure.pdfMaker's document · 3 valuesRetrieved 2026-09-03
DownloadSource files are not published yet: which documents may be published is undecided.
1 fields with several values
2026-09-03first collected · 3 sources
multiple values · 1Reduction ratio
Next update2026-10-01
Change history kept
Build a joint around this part.
Put a motor, a reducer and an encoder into the slots to see whether they combine.
Check joint combinationsJOINT · FHA-17C-PR · B · Motors
StatusNeeds checking
- Missing specs for the joint check
- No verdict: the specification keys it needs are not settled
To settle before a verdict
Supplier.
WRC 2026 Beijing exhibitors, and other suppliers.
This supplier's parts 1,815Supplier page
Alternatives in preparation
Keep this part in your BOM.
When the BOM opens, you can collect parts and send one enquiry.