QS Motor QS138 105H
QS138 105H Mid Drive Motor — 8000W rated IPM PMSM inrunner with 105mm stator stack height. 138mm stator diameter, inner spline shaft. 5700 RPM, 100 Nm max torque. Air cooled, IP67 waterproof. The tallest magnet variant in the QS138 family, targeting ATV, UGV, and tricycle applications.
In brief: 8000W mid-drive motor. 48–72V rated. From $367.
Specs verified May 29, 2026
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Specifications
Motor Design
- Design
- Inrunner PMSM
- Stator Diameter
- 138mm
- Stator Height
- 105mm
- Pole Pairs
- 5
- Shaft Type
- Spline
- Cooling
- Air
Performance
- Wattage
- 8000W
- Rated Voltage
- 48–72V
- Rated RPM
- 5700
- Max Torque
- 100.00Nm
Features
- PAS Sensor Type
- None
- Temp Sensor
- KTY83
- Has Encoder
- No
Physical
- Weight
- 18 kg
Ports & Connectors
| Pin | Wire color | Function |
|---|---|---|
| 1 | Yellow | Phase A |
| 2 | Green | Phase B |
| 3 | Blue | Phase C |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | 5V Power |
| 2 | No color | None |
| 3 | Black | Ground |
| 4 | Green | Hall A |
| 5 | Yellow | Hall B |
| 6 | Blue | Hall C |
