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
Where to Find
Prices tracked across 1 seller* Shipping estimates are for the contiguous US and may vary by location.
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Price History
Current best price $367.00. Over the past 90 days: low $319.29, high $367.00, average $358.77 — up 2% vs average.
- AliExpress - QS MOTOR LIMITED
| Date | Price | Shipping | Total | Change | Coupon | Rating | Sales | In Stock | Status |
|---|---|---|---|---|---|---|---|---|---|
AliExpress - QS MOTOR LIMITED(14 records) | |||||||||
| May 29, 202610:33 AM | $367.00 | $354.35 | $721.35 | $0.00 | — | — | — | Yes | active |
| May 28, 202609:01 AM | $367.00 | $354.35 | $721.35 | $0.00 | — | — | — | Yes | active |
| May 27, 202610:20 AM | $367.00 | $354.35 | $721.35 | $0.00 | — | — | — | Yes | active |
| May 23, 202610:17 AM | $367.00 | $354.35 | $721.35 | $47.71 | — | — | — | Yes | active |
| May 22, 202609:01 AM | $319.29 | $354.35 | $673.64 | $0.00 | USSS05−$5.00 | — | — | Yes | active |
| May 21, 202609:07 AM | $319.29 | $354.35 | $673.64 | $0.00 | USSS35−$35.00 | — | — | Yes | active |
| May 19, 202609:09 AM | $319.29 | $354.35 | $673.64 | $0.00 | USSS35−$35.00 | — | — | Yes | active |
| May 18, 202609:08 AM | $319.29 | $354.35 | $673.64 | $47.71 | USSS12−$12.00 | — | — | Yes | active |
| May 17, 202609:01 AM | $367.00 | $354.35 | $721.35 | $0.00 | — | — | — | Yes | active |
| May 16, 202609:07 AM | $367.00 | $354.35 | $721.35 | $0.00 | — | — | — | Yes | active |
| May 15, 202609:01 AM | $367.00 | $354.35 | $721.35 | $0.00 | SRUS02−$2.00 | — | — | Yes | active |
| May 14, 202609:07 AM | $367.00 | $354.35 | $721.35 | $0.00 | SRUS04−$4.00 | — | — | Yes | active |
| May 12, 202609:07 AM | $367.00 | $354.35 | $721.35 | $0.00 | SRUS38−$38.00 | — | — | Yes | active |
| May 1, 202604:40 AM | $367.00 | $354.35 | $721.35 | Initial | — | — | — | Yes | active |
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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 |
