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Components › A · Joint Actuation › Harmonic Drive Systems
RKF-25AAdd to cart
Series reference image, not this exact model · from harmonicdrive.netRKF-25A — RKF series picture — manufacturer series reference image1 / 1
哈默纳科（上海）商贸有限公司 · Harmonic Drive Systems

RKF-25A

A · Joint Actuation · active · sources 1 · multiple values 3
specs 17evidence [n]sources 1multiple values 3

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field · keyvaluesource sentencesourceEvidenceRetrieved · Changed
2 values for this fieldConfirm with the supplier.
Reduction ratioreduction_ratio
valuemeasured at How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 5050
source sentenceGear Ratio Gear Ratio 50 100 50 100 50 100
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
valuemeasured at How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 100100
source sentenceGear Ratio Gear Ratio 50 100 50 100 50 100
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
4 values for this fieldConfirm with the supplier.
Rated torquerated_torque
valuemeasured at Reduction ratio Gear Ratio: 50 · Row in other units Rated Torque In lb 168 310 257 522 434 867 Rated Torque Nm 19 35 29 59 49 98 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 2929 N·m
source sentenceRated Torque Nm 19 35 29 59 49 98
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Rated torquerated_torque
valuemeasured at Reduction ratio Gear Ratio: 100 · Row in other units Rated Torque In lb 168 310 257 522 434 867 Rated Torque Nm 19 35 29 59 49 98 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 5959 N·m
source sentenceRated Torque Nm 19 35 29 59 49 98
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Rated torquerated_torque
valuemeasured at Reduction ratio Gear Ratio: 50 · Row in other units Rated Torque In lb 168 310 257 522 434 867 Rated Torque Nm 19 35 29 59 49 98 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 25729.04 N·m
source sentenceRated Torque In lb 168 310 257 522 434 867
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Rated torquerated_torque
valuemeasured at Reduction ratio Gear Ratio: 100 · Row in other units Rated Torque In lb 168 310 257 522 434 867 Rated Torque Nm 19 35 29 59 49 98 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 52258.98 N·m
source sentenceRated Torque In lb 168 310 257 522 434 867
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Rated speedrated_speed
valuemeasured at Reduction ratio Gear Ratio: 50 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 6060 r/min
source sentenceRated Rotational Speed rpm 60 30 60 30 60 30
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Rated speedrated_speed
valuemeasured at Reduction ratio Gear Ratio: 100 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 3030 r/min
source sentenceRated Rotational Speed rpm 60 30 60 30 60 30
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
4 values for this fieldConfirm with the supplier.
Peak torquepeak_torque
valuemeasured at Reduction ratio Gear Ratio: 50 · Row in other units Max.Momentary Torque In lb 496 726 867 1389 1947 2921 Max.Momentary Torque Nm 56 82 98 157 220 330 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 9898 N·m
source sentenceMax.Momentary Torque Nm 56 82 98 157 220 330
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Peak torquepeak_torque
valuemeasured at Reduction ratio Gear Ratio: 100 · Row in other units Max.Momentary Torque In lb 496 726 867 1389 1947 2921 Max.Momentary Torque Nm 56 82 98 157 220 330 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 157157 N·m
source sentenceMax.Momentary Torque Nm 56 82 98 157 220 330
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Peak torquepeak_torque
valuemeasured at Reduction ratio Gear Ratio: 50 · Row in other units Max.Momentary Torque In lb 496 726 867 1389 1947 2921 Max.Momentary Torque Nm 56 82 98 157 220 330 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 86797.96 N·m
source sentenceMax.Momentary Torque In lb 496 726 867 1389 1947 2921
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Peak torquepeak_torque
valuemeasured at Reduction ratio Gear Ratio: 100 · Row in other units Max.Momentary Torque In lb 496 726 867 1389 1947 2921 Max.Momentary Torque Nm 56 82 98 157 220 330 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 1389156.9 N·m
source sentenceMax.Momentary Torque In lb 496 726 867 1389 1947 2921
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceConflicting
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 50 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
0.19
source sentenceMoment of Inertia ( GD2/4) kg.m 2 0.1 0.39 0.19 0.77 0.67 2.7
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 100 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
0.77
source sentenceMoment of Inertia ( GD2/4) kg.m 2 0.1 0.39 0.19 0.77 0.67 2.7
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 50 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
2.0
source sentenceMoment of Inertia (J) kgfcm 2 1.0 4.0 2.0 7.9 6.9 27
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Reduction ratio Gear Ratio: 100 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
7.9
source sentenceMoment of Inertia (J) kgfcm 2 1.0 4.0 2.0 7.9 6.9 27
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Weightweight
valuemeasured at Reduction ratio Gear Ratio: 50 / 100 · How it was measured RKF Actuator RKF The RKF series is compact and includes high torque AC servo actuators with high rotational accuracy, a flange output combining one of our Harmonic Drive® gears and an AC servo motor. The RKF Series is designed to operate with a wide range of third party drivers as well as Harmonic Drive LLC’s RTL Series, and REL Series.
as printed 5.05 kg
source sentenceMass kg 2.9 2.9 5.0 5.0 9.5 9.5
sourcehttps://www.harmonicdrive.net/products/rotary-actuators/actuators-without-hollow-shaft/rkf · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
specs 17, 17 shown

Source documents.

1 documents · 3 fields with several values

1 documents
DownloadSource files are not published yet: which documents may be published is undecided.
3 fields with several values
2026-09-08first collected · 1 sources
multiple values · 3Reduction ratio · Rated torque · Peak torque
Next update2026-10-01

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JOINT · RKF-25A · A · Joint Actuation
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哈默纳科（上海）商贸有限公司Harmonic Drive Systems
WRC2026-B-008Hall BBooth B110CNharmonicdrive.net · official
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