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Components › B · Motors › Mosrac
U3815Add to cart
Series reference image, not this exact model · from mosrac.cnU3815 — 外径38mm小型无框力矩电机 电机外径 ( OD ) : 38mm — manufacturer series reference image1 / 1
深圳市强和电机有限公司 · Mosrac

U3815

B · Motors · active · sources 2
specs 29evidence [n]sources 2

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

31.4 WRated power
0.1 N·mRated torque
1.8 ARated current
1

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Specs.

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field · keyvaluesource sentencesourceEvidenceRetrieved · Changed
Rated powerrated_power
value
as printed 31.431.4 W
source sentence额定输出功率 (W) 31.4 62.8 128
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u38-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Rated torquerated_torque
value
as printed 0.10.1 N·m
source sentence额定转矩(N.m) 0.1 0.2 0.35
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u38-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Rated currentrated_current
value
as printed 1.81.8 A
source sentence额定电流 (A) 1.8 3.5 4.4
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u38-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 3500
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u38-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/u38-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Peak torquepeak_torque
value
as printed 0.30.3 N·m
source sentence最大转矩 (N.m) 0.3 0.6 1.05
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u38-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Peak currentpeak_current
value
as printed 5.45.4 A
source sentence最大电流(A) 5.4 10.5 13.2
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u38-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Winding resistancewinding_resistance
value
as printed 1.481.48 Ω
source sentence线电阻(ohms@20℃) 1.48 1.29 1.68
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u38-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Winding inductancewinding_inductance
value
as printed 0.640.64 mH
source sentence线电感(mH) 0.64 0.6 0.77
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u38-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Back-EMF constantback_emf_constant
value
as printed 44 V/krpm
source sentence反电势常数 (Vrms/KRPM) 4 5.7 7.5
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u38-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Pole pairspole_pairs
value
as printed 77
source sentence极对数(2P) 7 7 7
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u38-torque-motor-catalog.pdf · p.1 · Maker's document
EvidenceSourced
Retrieved · Changed2026-09-03Changed —
Moment of inertiamoment_of_inertia
value
as printed 0.01818 g·cm²
source sentence转动惯量(kg.cm 2 ) 0.018 0.32 0.053
sourcehttps://www.mosrac.cn/uploads/pdf/lists/u38-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/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Rated powerrated_power
valuemeasured at Rated voltage 48
as printed 31.431.4 W
source sentence额定功率 (W) 额定功率 (W) 31.4 62.8 128
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Rated torquerated_torque
valuemeasured at Rated voltage 48
as printed 0.10.1 N·m
source sentence额定转矩 (Nm) 额定转矩 (Nm) 0.1 0.2 0.35
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Peak torquepeak_torque
valuemeasured at Rated voltage 48
as printed 0.30.3 N·m
source sentence最大转矩 (Nm) 最大转矩 (Nm) 0.3 0.6 1.05
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Rated currentrated_current
valuemeasured at Rated voltage 48
as printed 1.81.8 A
source sentence额定电流 (A) 额定电流 (A) 1.8 3.5 4.4
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Peak currentpeak_current
valuemeasured at Rated voltage 48
as printed 5.45.4 A
source sentence最大电流 (A) 最大电流 (A) 5.4 10.5 13.2
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-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 3500
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-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/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Moment of inertiamoment_of_inertia
valuemeasured at Rated voltage 48
as printed 0.01818 g·cm²
source sentence转动惯量( kg.cm²) 转动惯量( kg.cm²) 0.018 0.032 0.053
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Back-EMF constantback_emf_constant
valuemeasured at Rated voltage 48
as printed 44 V/krpm
source sentence反电势常数 (V/KRPM) 反电势常数 (V/KRPM) 4 5.7 7.5
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Winding resistancewinding_resistance
valuemeasured at Rated voltage 48
as printed 1.481.48 Ω
source sentence线电阻(ohms@20℃) 线电阻(ohms@20℃) 1.48 1.29 1.68
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Winding inductancewinding_inductance
valuemeasured at Rated voltage 48
as printed 0.640.64 mH
source sentence线电感 (mH) 线电感 (mH) 0.64 0.6 0.77
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Pole pairspole_pairs
valuemeasured at Rated voltage 48
as printed 77
source sentence极对数 (2P) 极对数 (2P) 7 7 7
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Cogging torquecogging_torque
valuemeasured at Rated voltage 48
as printed 8(参考值)8 mN·m
source sentence齿槽转矩(mN.m) 齿槽转矩(mN.m) 8(参考值) 15 (参考值) 16 (参考值)
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Overall dimensionsoverall_dimensions
valuemeasured at Rated voltage 48
9
source sentence尺寸(mm) L1(铁芯高度) 9 16 27
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Overall dimensionsoverall_dimensions
valuemeasured at Rated voltage 48
10
source sentence尺寸(mm) L2(转子高度) 10 17 28
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
Overall dimensionsoverall_dimensions
valuemeasured at Rated voltage 48
15.8
source sentence尺寸(mm) L3(整体高度) 15.8 22.8 34.5
sourcehttps://www.mosrac.cn/products/frameless_dd_motor/u38-series.html · Maker's document
EvidenceSourced
Retrieved · Changed2026-08-25Changed —
specs 29, 29 shown

Source documents.

2 sources the values were read from

2 documents
mosrac.cn/products/frameless_dd_motor/u38-series.htmlMaker's document · 17 valuesRetrieved 2026-08-25
mosrac.cn/uploads/pdf/lists/u38-torque-motor-catalog.pdfMaker's document · 12 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

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JOINT · U3815 · B · Motors
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深圳市强和电机有限公司Mosrac
WRC2026-D-038Hall DBooth D406CNmosrac.cn · official
This supplier's parts 159Supplier page

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