115mmFrameless Motor

The modular design of the stator and rotor in the 115mm 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.

115mm Frameless Motor images

Motor Characteristics

In a mobile environment, you can move left and right to see the contents (tables).

Motor part number - 115ZWC37X-1
Stator outer diameter mm 115±0.027
Rotor inner diameter mm 74+0.03
Number of slots - 27
Pole pairs - 15
Phase-to-phase resistance Ω
Phase-to-phase inductance mH
Winding connection method - Star connection
Insulation class - F
Duty type - S2
Feedback method - Hall sensor
Commutation angle - 120°
Insulation strength (Withstand voltage) - 1200VAC/3mA/1s
Insulation resistance - 50MΩ/500VDC
Stator weight g 815
Rotor weight g 245
No-load speed RPM 1750
No-load current A 1.8(REF)
Rated voltage VDC 48
Rated power W 570
Rated torque N·m 3.9
Rated speed RPM 1400
Rated current A 14.1
Torque constant Nm/A 0.281
Back-EMF constant (effective value) Vrms/Krpm 20.8
Peak torque N·m 12.7
Peak current A 47
Inertia moment g·cm² 3930

Dimensional Drawings

Frameless Motor 115mm images
Frameless Motor Size 115mm Dimensional Drawing

In a mobile environment, you can move left and right to see the contents (tables).

Lead-out type Lead-out color Function
UL1332 AWG14 Yellow U phase
Red V phase
Black W phase

Torque Performance Curves

Torque Performance Curves image