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-20A-15Add to cart

Series reference image, not this exact model · from harmonicdrive.net HPGP-20A-15 — HPGP-20A-15 — manufacturer part page image

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

HPGP-20A-15

Name: HPGP-20A-15
Brand: Harmonic Drive Systems

Unclassified · active · sources 2

specs 19evidence [n]sources 2

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

70 N·mAllowable average load torque

142 N·mAllowable start/stop torque

1.8 N·mBackdriving torque

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Specs.

Check before you order.

field · keyvaluesource sentencesourceEvidenceRetrieved · Changed

Allowable average load torqueallowable_average_load_torque

value

as printed 7070 N·m

source sentenceLimit for Average Torque 70 Nm

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox/20/hpgp-20a-15 · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-06Changed —

Allowable start/stop torqueallowable_startstop_torque

value

as printed 142142 N·m

source sentenceLimit for Repeated Peak Torque 142 Nm

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox/20/hpgp-20a-15 · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-06Changed —

Backdriving torquebackdriving_torque

value

as printed 1.81.8 N·m

source sentenceBackdriving Torque 1.8 Nm

sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpgp-planetary-gearbox/20/hpgp-20a-15 · 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/20/hpgp-20a-15 · Maker's document

EvidenceSourced

Retrieved · Changed2026-09-06Changed —

Allowable start/stop torqueallowable_startstop_torque

valuemeasured at Reduction ratio 15

as printed 142142 N·m

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15

as printed 1.81.8 N·m

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15

as printed 44 arcmin

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15

as printed 1.51.5 kg

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 1515

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15 · Rated life basis Rated Torque L10

as printed 3232 N·m

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15 · Rated life basis Rated Torque L50

as printed 7070 N·m

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15

as printed 217217 N·m

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15

as printed 6,0006000 r/min

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15

< 3

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15

< 1

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15 · Stiffness region K1 Torsional Stiffness

as printed 1.818000 N·m/rad

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15

as printed 16.8168000 N·m/rad

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15

as printed 1,3601360 N

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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 15

as printed 2,0302030 N

source sentenceHPGP-20A-15 20 90 15 32 70 142 217 6,000 < 3 < 1 1.8 4 1.5 1.8 16.8 1,360 2,030

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/20/hpgp-20a-15Maker'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-20A-15 · Unclassified

StatusNot applicable

Family not yet set

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Supplier.

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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