H4134C 90KV Brushless Motor | Electric Scooter Hub Motor & Power-Assist Vehicle Motor Specifications

Descriptions

The H4134C 90KV brushless hub motor integrates high-torque density and thermal management for electric scooters and power-assist vehicles. Featuring a sealed rotor-in-stator design with IP54 protection, it delivers efficient propulsion with sinusoidal control for smooth acceleration. The motor's direct-drive architecture eliminates transmission losses while its balanced rotor minimizes operational vibrations for urban mobility applications:cite[3]:cite[6].

1. Main Specifications

2. Key Features

• • Sinusoidal Control: EN 60601-1-2 compliant EMI reduction with <0.5% torque ripple for vibration-free operation:cite[9]

• • Thermal Management: Hollow axle with 8mm internal airflow channel for active coil cooling (heat dissipation: 25W/K):cite[4]

• • Rugged Construction: Double-sealed ceramic bearings + epoxy-encapsulated stator windings

• • Regenerative Braking: Energy recovery efficiency up to 15% during deceleration

• • Smart Sensing: Integrated 12-bit magnetic encoder + temperature monitoring (±1°C accuracy)

3. Performance Data

Torque/Speed Curve (48V Li-ion @25°C)

4. Recommended Applications

🛴 Electric Scooters

• • 8"-10" hub-driven urban commuter scooters

• • Foldable scooter propulsion systems

• • Dual-motor all-terrain scooters:cite[8]

🚲 Power-Assist Vehicles

• • E-bike mid-drive torque augmentation

• • Cargo trike hub motors (load ≤120kg):cite[1]

⚡ Light EV Systems

• • Self-balancing unicycles

• • Compact last-mile delivery robots

5. Thermal Characteristics

• • Continuous Duty: 55°C @25°C ambient (for 2hrs sustained operation)

• • Thermal Protection: Dual NTC sensors with throttle-back at 75°C + cutoff at 95°C

• • Storage Conditions: -40℃ ~ +85℃, <85% RH