Data captured: · Published: · Update delayed: this release is over 8 days old.
Series reference image, not this exact model · from mosrac.cn
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1 / 1specs 34evidence [n]sources 2
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518 WRated power
1.65 N·mRated torque
13 ARated current
1
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field · keyvaluesource sentencesourceEvidenceRetrieved · Changed
Rated powerrated_power
value
as printed 518518 W
source sentence额定输出功率 (W) 380 518 848
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Rated torquerated_torque
value
as printed 1.651.65 N·m
source sentence额定转矩(N.m) 1.21 1.65 2.7
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Rated currentrated_current
value
as printed 1313 A
source sentence额定电流 (A) 10.5 13 23.5
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Rated speedrated_speed
value
as printed 30003000 r/min
source sentence额定转速 (rpm) 3000 3000 3000
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
No-load speedno_load_speed
value
as printed 45004500 r/min
source sentence空载转速 (rpm) 4500 4500 4500
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Peak torquepeak_torque
value
as printed 4.954.95 N·m
source sentence最大转矩 (N.m) 3.6 4.95 8.1
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Peak currentpeak_current
value
as printed 3939 A
source sentence最大电流(A) 30 39 40.5
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Winding resistancewinding_resistance
value
as printed 0.160.16 Ω
source sentence线电阻(ohms@20℃) 0.23 0.16 0.065
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Winding inductancewinding_inductance
value
as printed 0.170.17 mH
source sentence线电感(mH) 0.23 0.17 0.077
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Torque constanttorque_constant
value
as printed 0.1270.127 N·m/A
source sentence转矩常数(Nm/A) 0.121 0.127 0.115
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Back-EMF constantback_emf_constant
value
8.4
source sentence反电势常数 (Vrms/Krpm) 8.3 8.4 8.2
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Pole pairspole_pairs
value
as printed 1111
source sentence极对数(2P) 11 11 11
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Moment of inertiamoment_of_inertia
value
as printed 0.859859 g·cm²
source sentence转动惯量(kg.cm 2 ) 0.610 0.859 1.581
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Weightweight
value
as printed 0.3920.392 kg
source sentence重量(kg) 0.340 0.392 0.681
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Overall dimensionsoverall_dimensions
value
15
source sentence尺寸(mm) L1(铁芯高度) 10.5 15 28
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Rated voltagerated_voltage
value
as printed 4848 V
source sentence直流电压 (VDC) 直流电压 (VDC) 48 48 48
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Rated powerrated_power
valuemeasured at Rated voltage 48
as printed 518518 W
source sentence额定功率 (W) 额定功率 (W) 380 518 848
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Rated torquerated_torque
valuemeasured at Rated voltage 48
as printed 1.651.65 N·m
source sentence额定转矩 (N.m) 额定转矩 (N.m) 1.21 1.65 2.7
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Peak torquepeak_torque
valuemeasured at Rated voltage 48
as printed 4.954.95 N·m
source sentence最大扭矩 (N.m) 最大扭矩 (N.m) 3.6 4.95 8.1
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Rated currentrated_current
valuemeasured at Rated voltage 48
as printed 1313 A
source sentence额定电流 (A) 额定电流 (A) 10.5 13 23.5
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Peak currentpeak_current
valuemeasured at Rated voltage 48
as printed 3939 A
source sentence最大电流 (A) 最大电流 (A) 30 39 40.5
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Rated speedrated_speed
valuemeasured at Rated voltage 48
as printed 30003000 r/min
source sentence额定转速 (rpm) 额定转速 (rpm) 3000 3000 3000
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
No-load speedno_load_speed
valuemeasured at Rated voltage 48
as printed 45004500 r/min
source sentence空载转速 (rpm) 空载转速 (rpm) 4500 4500 4500
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Torque constanttorque_constant
valuemeasured at Rated voltage 48
as printed 0.1270.127 N·m/A
source sentence转矩常数 (Nm/A) 转矩常数 (Nm/A) 0.121 0.127 0.115
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Rated voltage 48
as printed 0.859859 g·cm²
source sentence转动惯量( kg.cm²) 转动惯量( kg.cm²) 0.61 0.859 1.581
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Back-EMF constantback_emf_constant
valuemeasured at Rated voltage 48
as printed 8.48.4 V/krpm
source sentence反电势常数 (Vrms/KRPM) 反电势常数 (Vrms/KRPM) 8.3 8.4 8.2
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Winding resistancewinding_resistance
valuemeasured at Rated voltage 48
as printed 0.160.16 Ω
source sentence线电阻 (ohms@20℃) 线电阻 (ohms@20℃) 0.23 0.16 0.065
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Winding inductancewinding_inductance
valuemeasured at Rated voltage 48
as printed 0.170.17 mH
source sentence线电感 (mH) 线电感 (mH) 0.23 0.17 0.077
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Pole pairspole_pairs
valuemeasured at Rated voltage 48
as printed 1111
source sentence极对数 (2P) 极对数 (2P) 11 11 11
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Weightweight
valuemeasured at Rated voltage 48
as printed 0.3920.392 kg
source sentence重量 (kg) 重量 (kg) 0.340 0.392 0.681
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Cogging torquecogging_torque
valuemeasured at Rated voltage 48
as printed 49.5 (参考值)49.5 mN·m
source sentence齿槽转矩(mN.m) 齿槽转矩(mN.m) 36.3(参考值) 49.5 (参考值) 81 (参考值)
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Overall dimensionsoverall_dimensions
valuemeasured at Rated voltage 48
15
source sentence尺寸(mm) L1(铁芯高度) 10.5 15 28
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Overall dimensionsoverall_dimensions
valuemeasured at Rated voltage 48
15.5
source sentence尺寸(mm) L2(转子高度) 11 15.5 28.5
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Overall dimensionsoverall_dimensions
valuemeasured at Rated voltage 48
23.9
source sentence尺寸(mm) L3(整体高度) 19.6 23.9 37.7
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u85-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
specs 34, 34 shown
Source documents.
2 sources the values were read from
2 documents
mosrac.cn/products/frameless_dd_motor/u85-series.htmlMaker's document · 19 valuesRetrieved 2026-08-25
mosrac.cn/uploads/pdf/lists/u85-torque-motor-catalog.pdfMaker's document · 15 valuesRetrieved 2026-09-03
DownloadSource files are not published yet: which documents may be published is undecided.
No change
2026-08-25first collected · 2 sources
Next update2026-10-01
Change history kept
Build a joint around this part.
Put a motor, a reducer and an encoder into the slots to see whether they combine.
Check joint combinationsJOINT · U8523 · B · Motors
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