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2000W 70H QS120 4600RPM PMSM Mid Drive Motor with Belt 428 Sprocket for Electric Mopeds Motorcycle ATV
2000W 70H QS120 4600RPM PMSM Mid Drive Motor with Belt 428 Sprocket for Electric Mopeds Motorcycle ATV
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QS Motor 2000W Mid Drive PMSM Motor - Professional E-bike Conversion Kit
Transform your bicycle into a powerful electric bike with this high-performance QS Motor 2000W mid-drive system. Featuring advanced PMSM (Permanent Magnet Synchronous Motor) technology with internal gear reduction for optimal torque delivery.
Key Specifications:
- Motor Type: PMSM Motor with Hall Sensor
- Rated Power: 2000W
- Rated Voltage: 72V
- Max Torque: 216.7N.m (with 1:4.77 reduction ratio)
- Max Efficiency: ~93%
- No-Load Speed: 3200RPM (4600RPM peak with flux weakening)
- Waterproof Grade: IP67
- Weight: 8.35kg
Advanced Features:
- Single Hall Set with waterproof connectors
- 5 pole pairs, 70mm magnet height
- Peak Battery Current: 80A (72V)
- Peak Phase Current: 250A (72V)
- Working Temperature: 70-130℃ (peak 150℃)
- Air cooling system
- 8mm² phase wire
Perfect For:
- High-performance e-bike conversions
- Mountain bike upgrades
- Professional e-bike manufacturing
- Heavy-duty cycling applications
Experience unmatched power and efficiency with this premium motor system that delivers smooth, reliable performance for the most demanding rides.
1. Motor Spec:
Motor Type: PMSM Motor With Hall Sensor
Single Hall Set with waterproof connectors
Rated Power: 2000W 
Rated Voltage: 72V
No-Load Speed: 3200RPM, 4600RPM peak with flux weakening
Magnet Height: 70mm, 5 pole pairs
Max Torque: approx 45.4N.m without Reduction ratio, approx 216.7N.m with 1:4.77 Reduction ratio
Max Efficiency: approx 93%
Peak Battery Current:  80A (72V)
Peak Phase Current: 250A (72V)
Working Temperature: 70-130℃ , peak 150 ℃
Motor Phase Angel: 60°
Waterproof Grade: IP67
Cooling: Air cooling
Phase wire: 8mm²
Color: Black
N.W./G.W.: approx 8.35kg/10.5kg
Package Dimension: 31cm*31cm*31cm
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