Data captured: 9/24/2026, 13:28:26 KST · Published: 9/24/2026, 13:29:01 KST · Update delayed: this release is over 8 days old.

Components › Unclassified › Harmonic Drive Systems

HPGP-14A-21Add to cart

Series reference image, not this exact model · from harmonicdrive.net HPGP-14A-21 — HPGP-14A-21 — manufacturer part page image

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哈默纳科（上海）商贸有限公司 · Harmonic Drive Systems

HPGP-14A-21

Name: HPGP-14A-21
Brand: Harmonic Drive Systems

Unclassified · active · sources 2

specs 19evidence [n]sources 2

No verified public price. Request a quotation from the seller.

20 N·mAllowable average load torque

39 N·mAllowable start/stop torque

1.1 N·mBackdriving torque

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field · keyvaluesource sentencesourceEvidenceRetrieved · Changed

Allowable average load torqueallowable_average_load_torque

value

as printed 2020 N·m

source sentenceLimit for Average Torque 20 Nm

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox/14/hpgp-14a-21 · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-06Changed —

Allowable start/stop torqueallowable_startstop_torque

value

as printed 3939 N·m

source sentenceLimit for Repeated Peak Torque 39 Nm

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox/14/hpgp-14a-21 · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-06Changed —

Backdriving torquebackdriving_torque

value

as printed 1.11.1 N·m

source sentenceBackdriving Torque 1.1 Nm

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox/14/hpgp-14a-21 · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-06Changed —

Transmission accuracytransmission_accuracy

value

as printed 44 arcmin

source sentenceStandard Accuracy 4 arc min

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox/14/hpgp-14a-21 · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-06Changed —

Allowable start/stop torqueallowable_startstop_torque

valuemeasured at Reduction ratio 21

as printed 3939 N·m

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Backdriving torquebackdriving_torque

valuemeasured at Reduction ratio 21

as printed 1.11.1 N·m

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Transmission accuracytransmission_accuracy

valuemeasured at Reduction ratio 21

as printed 44 arcmin

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Weightweight

valuemeasured at Reduction ratio 21

as printed 0.510.51 kg

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Reduction ratioreduction_ratio

value

as printed 2121

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Rated torquerated_torque

valuemeasured at Reduction ratio 21 · Rated life basis Rated Torque L10

as printed 1212 N·m

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Rated torquerated_torque

valuemeasured at Reduction ratio 21 · Rated life basis Rated Torque L50

as printed 2323 N·m

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Peak torquepeak_torque

valuemeasured at Reduction ratio 21

as printed 6363 N·m

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Max input speedmax_input_speed

valuemeasured at Reduction ratio 21

as printed 6,0006000 r/min

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Backlashbacklash

valuemeasured at Backlash grade Gear Backlash · Reduction ratio 21

< 3

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Backlashbacklash

valuemeasured at Backlash grade Gear Backlash Reduced · Reduction ratio 21

< 1

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Torsional stiffnesstorsional_stiffness

valuemeasured at Reduction ratio 21 · Stiffness region K1 Torsional Stiffness

as printed 0.474700 N·m/rad

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Output moment stiffnessoutput_moment_stiffness

valuemeasured at Reduction ratio 21

as printed 330000 N·m/rad

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Radial loadradial_load

valuemeasured at Reduction ratio 21

as printed 720720 N

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

Axial loadaxial_load

valuemeasured at Reduction ratio 21

as printed 1,0801080 N

source sentenceHPGP-14A-21 14 60 21 12 23 39 63 6,000 < 3 < 1 1.1 4 0.51 0.47 3 720 1,080

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-08Changed —

specs 19, 19 shown

Source documents.

2 sources the values were read from

2 documents

harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearboxMaker's document · 15 valuesRetrieved 2026-09-08

harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox/14/hpgp-14a-21Maker's document · 4 valuesRetrieved 2026-09-06

DownloadSource files are not published yet: which documents may be published is undecided.

No change

2026-09-06first collected · 2 sources

Next update2026-10-01

Change history kept

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JOINT · HPGP-14A-21 · Unclassified

StatusNot applicable

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WRC 2026 Beijing exhibitors, and other suppliers.

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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