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Components › Unclassified › Harmonic Drive Systems
SHF-20-120-2UHAdd to cart
Series reference image, not this exact model · from harmonicdrive.netSHF-20-120-2UH — SHF-20-120-2UH — manufacturer part page image1 / 1
哈默纳科（上海）商贸有限公司 · Harmonic Drive Systems

SHF-20-120-2UH

Unclassified · active · sources 2
specs 16evidence [n]sources 2
49 N·mAllowable average load torque
87 N·mAllowable start/stop torque
45 N·mBackdriving torque
1

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field · keyvaluesource sentencesourceEvidenceRetrieved · Changed
Allowable average load torqueallowable_average_load_torque
value
as printed 4949 N·m
source sentenceLimit for Average Torque 49 Nm
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh/shf-20-120-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-06Changed —
Allowable start/stop torqueallowable_startstop_torque
value
as printed 8787 N·m
source sentenceLimit for Repeated Peak Torque 87 Nm
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh/shf-20-120-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-06Changed —
Backdriving torquebackdriving_torque
value
as printed 4545 N·m
source sentenceBackdriving Torque 45 Nm
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh/shf-20-120-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-06Changed —
Transmission accuracytransmission_accuracy
value
as printed 11 arcmin
source sentenceStandard Accuracy 1 arc min
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh/shf-20-120-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-06Changed —
Weightweight
value
as printed 1.381.38 kg
source sentenceMass 1.38 kg
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh/shf-20-120-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-06Changed —
Allowable start/stop torqueallowable_startstop_torque
valuemeasured at Reduction ratio 120
as printed 8787 N·m
source sentenceSHF-20-120-2UH 20 120 40 87 147 45 1 1.38 1.6 2.5 2.9 25.2
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Backdriving torquebackdriving_torque
valuemeasured at Reduction ratio 120
as printed 4545 N·m
source sentenceSHF-20-120-2UH 20 120 40 87 147 45 1 1.38 1.6 2.5 2.9 25.2
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Transmission accuracytransmission_accuracy
valuemeasured at Reduction ratio 120
as printed 11 arcmin
source sentenceSHF-20-120-2UH 20 120 40 87 147 45 1 1.38 1.6 2.5 2.9 25.2
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Weightweight
valuemeasured at Reduction ratio 120
as printed 1.381.38 kg
source sentenceSHF-20-120-2UH 20 120 40 87 147 45 1 1.38 1.6 2.5 2.9 25.2
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Reduction ratioreduction_ratio
value
as printed 120120
source sentenceSHF-20-120-2UH 20 120 40 87 147 45 1 1.38 1.6 2.5 2.9 25.2
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Rated torquerated_torque
valuemeasured at Reduction ratio 120 · Rated life basis Rated Torque L10
as printed 4040 N·m
source sentenceSHF-20-120-2UH 20 120 40 87 147 45 1 1.38 1.6 2.5 2.9 25.2
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Peak torquepeak_torque
valuemeasured at Reduction ratio 120
as printed 147147 N·m
source sentenceSHF-20-120-2UH 20 120 40 87 147 45 1 1.38 1.6 2.5 2.9 25.2
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Torsional stiffnesstorsional_stiffness
valuemeasured at Reduction ratio 120 · Stiffness region K1 Torsional Stiffness
as printed 1.616000 N·m/rad
source sentenceSHF-20-120-2UH 20 120 40 87 147 45 1 1.38 1.6 2.5 2.9 25.2
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Torsional stiffnesstorsional_stiffness
valuemeasured at Reduction ratio 120 · Stiffness region K2 Torsional Stiffness
as printed 2.525000 N·m/rad
source sentenceSHF-20-120-2UH 20 120 40 87 147 45 1 1.38 1.6 2.5 2.9 25.2
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Torsional stiffnesstorsional_stiffness
valuemeasured at Reduction ratio 120 · Stiffness region K3 Torsional Stiffness
as printed 2.929000 N·m/rad
source sentenceSHF-20-120-2UH 20 120 40 87 147 45 1 1.38 1.6 2.5 2.9 25.2
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
Output moment stiffnessoutput_moment_stiffness
valuemeasured at Reduction ratio 120
as printed 25.2252000 N·m/rad
source sentenceSHF-20-120-2UH 20 120 40 87 147 45 1 1.38 1.6 2.5 2.9 25.2
sourcehttps://www.harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uh · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-08Changed —
specs 16, 16 shown

Source documents.

2 sources the values were read from

2 documents
harmonicdrive.net/products/gear-units/hollow-shaft-gear-units/shf-2uhMaker's document · 11 valuesRetrieved 2026-09-08
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 · SHF-20-120-2UH · 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
This supplier's parts 1,815Supplier page

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