50mmFrameless Motor

The modular design of the stator and rotor in the 50mm frameless motor, along with optimized slot ratios, improves the motor's torque density.

The rotor has a large inner bore space, and the stator is designed for embedded installation by the customer, facilitating personalized design including mounting structures and cooling systems, offering greater flexibility for custom systems.

The optimized slot-pole combination reduces motor cogging torque, ensuring smooth motor operation.

The structure is compact and highly integrated.

50mm Frameless Motor images

Motor Characteristics

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Motor part number - 50ZWC15X-1
Stator Outer Diameter mm 50±0.031
Rotor Inner Bore mm 30+0.033
Number of Slots - 18
Number of Pole Pairs - 10
Phase Resistance Ω 0.62
Phase Inductance mH 0.43
Winding Connection Type - Star shape
Insulation Class - B
Duty Cycle - S2
Feedback Method - Hall sensor
Commutation Angle - 120°
Insulation Strength (Dielectric Strength) - 500VAC/1mA/1s
Insulation Resistance - 100 MΩ/500VDC
Stator Weight g 77.5
Rotor Weight g 38
No-Load Speed RPM 6400
No-Load Current A 0.4(REF)
Rated Voltage VDC 48
Rated Power W 163
Rated Torque N·m 0.3
Rated Speed RPM 5200
Rated Current A 3.6
Torque Constant Nm/A 0.09
Back EMF Constant (RMS) Vrms/Krpm 5.5
Peak Torque N·m 0.96
Peak Currentt A 10.7
Moment of Inertia g·cm² 100

Dimensional Drawing

Frameless Motor 50mm images
Frameless Motor Size 50mm Dimensional Drawing

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Lead-out type Lead-out color Function
UL1332 AWG20 Yellow U phase
Red V phase
Black W phase

Torque Performance Curves

Torque Performance Curves image