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Is a high‑torque 135 mm outer‑rotor frameless BLDC torque motor, operating at 48VDC. It delivers 8 Nm continuous rated torque and strong 24 Nm peak torque, with rated power of 1760 W and maximum speed up to 2100 RPM.
Housing‑free split stator‑rotor design enables direct embedding into customer‑designed mechanical assemblies. Its 42‑pole topology provides excellent torque density, low cogging torque and ultra‑smooth rotation. This compact motor weighs only 964 g with stack length of 28 mm. Custom winding, cable harness modification and full OEM/ODM service are available for robot and automation integrators.
Industrial automation and rotary positioning platforms
Portable medical automation devices
High‑speed optical inspection equipment
AGV / AMR drive and steering units
Special‑purpose high‑speed automated machinery
Customization is available upon request for this motor series, including but not limited to rated voltage, speed, torque, lead wire specifications, outlet orientation, shaft configuration, encoder/sensor integration, and more. Please provide your specific requirements, and we will offer a tailored solution for you.
Dimensions
Items
SY135BLW20
Tolerance
Rotor outer diameter D
135 mm
0/-0.1
Magnetic ring inner diameter D1
131 mm
0/+0.05
Magnetic ring length L
28 mm
±0.2
Rotor bonding dimension L1
4.5 mm
±0.3
Stator inner diameter D2
95 mm
0/+0.05
Stator length L2
20 mm
±0.2
Non‑wiring‑end height E
3.5 mm
MAX
Wiring‑end height F
7.5 mm
MAX
Electrical Specifications
Item
Unit
SY135BLW20‑48V
Number of poles
—
42
Number of phases
—
3
Rated voltage
VDC
48
Rated torque
N.m
8
Rated current
A
45.2
Rated speed
RPM
2100
Rated power
W
1760
Maximum speed
RPM
2700
Peak torque
N.m
24
Peak current
A
135
Line‑to‑line resistance
ohms@20℃
0.031
Line‑to‑line inductance
mH
0.051
Torque constant
N.m/A
0.186
Back EMF
Vrms/KRPM
12.4
Motor length
mm
28
Weight
g
964
Electrical time constant
ms
1.65
Electric Connection:
Color
Type
Functions
White (WHT)
UL1332 AWG26
NTC
White (WHT)
UL1332 AWG26
NTC
Yellow
UL1332 AWG24
Phase U
Red
UL1332 AWG24
Phase V
Black
UL1332 AWG24
Phase W
Torque Performance Curves
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2017
Total Annual:
10 million USD-15million USD
Employee Number:
100~300
Ecer Certification:
Verified Supplier
Shenzhen Seninter Precision Machinery Co., Ltd. integrates R&D, production, sales and after-sales services. We specialize in the R&D and manufacturing of AC motors, DC motors, servo motors, brushless motors, gearboxes, geared motors and harmonic reducers, as well as supporting components for... Shenzhen Seninter Precision Machinery Co., Ltd. integrates R&D, production, sales and after-sales services. We specialize in the R&D and manufacturing of AC motors, DC motors, servo motors, brushless motors, gearboxes, geared motors and harmonic reducers, as well as supporting components for...