QS138 90H 72V IPM PMSM Mid Drive Motor
This motor is perfect for medium to large size electric motorcyles. With its extra long body compared to the 70h model you will be able to achieve a higher torque and power. This model is capable of over 25kw Bursts!
Includes:
1pc X QS 138 4kW Mid drive motor (tapered shaft with key) with 14T 428 sprocket
Key Features
- Light weight and small dimension compared to other motors of similar power outputs
- V configured rotor design allows for higher RPM with flux weakening
- High Torque suitable for high performace high load situations such as climbing and racing.
- Supports regenerative braking
- Proven reliability
QS138 90H (4000w)
Motor Type: BLDC IPM
Brand: QS Motor, QSMOTOR
Motor Design: Single Axle
Matched Tire: 17 inch
Magnet Height: 90mm, 5 pole pairs
Rated Power: 7500W
Peak Power: 13.5kW
Rated Voltage: 72V
Speed: 4000RPM
With Flux Weakening(RPM): 6500RPM
Rated Torque: 14.3N.m
Max Torque: 72.N.m
Cooling Method: Air Cooling
Max Efficiency: 94%
Continuous Battery Current: 89A
Peak Battery Current: 200A
Thermic Probe: KTY83/122 (as default)
Working Temperature: 70-120C, peak 150C
Hall Sensor: Single Hall Set with Waterproof Connectors
Phase Wire: 20mm2 Cross Section (not include insulation layer)
Waterproof Grade: IP67
Color: Black
N.W./G.W.: approx 13kgs/14kgs
Package Dimensions: 34cmx34cmx33cm/piece