| After-sales Service: | Yes |
|---|---|
| Warranty: | 15 Months |
| Type: | Motorcycle Engine |
| Certification: | CE |
| Material: | Alloy |
| Usage: | Car, Electric Bicycle, Electric Motorcycle |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier QS 138 90H 4KW PMSM MID DRIVE MOTOR
For 138 4000W mid drive motor , it could be used for electric light motorcycle, which could be 72V 100KPH.
What's more, we provide chain gear adapters as default.
| Motor Type | PMSM Inner Rotor Motor | Motor design | single axle |
| Brand | QS Motor, QS MOTOR | Matched wheel | 17 inch (as default) |
| Magnet Height | 90mm,5 pole pairs | Rated power | 4000w(Max continue 7500w) |
| Peak Power | 13.5kw | Rated Torque | 14.3N.m |
| Rated Voltage | 72v | Speed | 4000RPM |
| With flux weakening | 6500RPM | Max Torque | 72 N.M |
| Cooling method | Air cooling | Max Efficiency | 94% |
| Rated current | 89A | Max bus current | 200A |
| Thermic Probe | KTY83/122(as default) | Working temperature | 70-120ºC,peak 150ºC |
| Phase wire | 20mm² cross section | Waterproof grade | IP67 |
| Color | Black | N.W/G.W | 10.8kgs/11.5kgs |
| Package Dimension | 34cm*34cm*33cm | Hall sensor | Single hall plate with waterproof connectors |
2. Dimension Drawing:
Suppliers with verified business licenses
Audited Supplier 
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