Data captured: · Published: · Update delayed: this release is over 8 days old.
Series reference image, not this exact model · from harmonicdrive.net
1 / 1
1 / 1specs 18evidence [n]sources 2
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1300 N·mAllowable average load torque
1900 N·mAllowable start/stop torque
51 N·mBackdriving torque
1
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field · keyvaluesource sentencesourceEvidenceRetrieved · Changed
Allowable average load torqueallowable_average_load_torque
value
as printed 1,3001300 N·m
source sentenceLimit for Average Torque 1,300 Nm
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle/65/hpg-65a-40-ra5 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-06Changed —
Allowable start/stop torqueallowable_startstop_torque
value
as printed 1,9001900 N·m
source sentenceLimit for Repeated Peak Torque 1,900 Nm
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle/65/hpg-65a-40-ra5 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-06Changed —
Backdriving torquebackdriving_torque
value
as printed 5151 N·m
source sentenceBackdriving Torque 51 Nm
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle/65/hpg-65a-40-ra5 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-06Changed —
Transmission accuracytransmission_accuracy
value
as printed 33 arcmin
source sentenceStandard Accuracy 3 arc min
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle/65/hpg-65a-40-ra5 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-06Changed —
Allowable start/stop torqueallowable_startstop_torque
valuemeasured at Reduction ratio 40
as printed 1,9001900 N·m
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Backdriving torquebackdriving_torque
valuemeasured at Reduction ratio 40
as printed 5151 N·m
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Transmission accuracytransmission_accuracy
valuemeasured at Reduction ratio 40
as printed 33 arcmin
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Weightweight
valuemeasured at Reduction ratio 40
as printed 5050 kg
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
value
as printed 4040
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Rated torquerated_torque
valuemeasured at Reduction ratio 40 · Rated life basis Rated Torque L10
as printed 640640 N·m
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Rated torquerated_torque
valuemeasured at Reduction ratio 40 · Rated life basis Rated Torque L50
as printed 1,3201320 N·m
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Peak torquepeak_torque
valuemeasured at Reduction ratio 40
as printed 4,0004000 N·m
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Max input speedmax_input_speed
valuemeasured at Reduction ratio 40
as printed 3,0003000 r/min
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Backlashbacklash
valuemeasured at Reduction ratio 40
< 3
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Torsional stiffnesstorsional_stiffness
valuemeasured at Reduction ratio 40 · Stiffness region K1 Torsional Stiffness
as printed 1201200000 N·m/rad
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Output moment stiffnessoutput_moment_stiffness
valuemeasured at Reduction ratio 40
as printed 3643640000 N·m/rad
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Radial loadradial_load
valuemeasured at Reduction ratio 40
as printed 17,60017600 N
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Axial loadaxial_load
valuemeasured at Reduction ratio 40
as printed 26,30026300 N
source sentenceHPG-65A-40-RA5 65 230 40 640 1,320 1,900 4,000 3,000 < 3 51 3 50 120 364 17,600 26,300
sourcehttps://www.harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
specs 18, 18 shown
Source documents.
2 sources the values were read from
2 documents
harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angleMaker's document · 14 valuesRetrieved 2026-09-08
harmonicdrive.net/products/servo-mount-gearheads/harmonic-planetary/hpg-ra-right-angle/65/hpg-65a-40-ra5Maker'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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Check joint combinationsJOINT · HPG-65A-40-RA5 · Unclassified
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