Electric Bike Motors from a Leading Manufacturer for Global Buyers

If you are looking for a reliable manufacturer and supplier of electric bike motors, consider Qianjiang Motor from China. Products in this series feature high energy efficiency, low noise levels, and a wide speed regulation range; compatible with various electric vehicles, they convert battery energy into the mechanical energy required to drive the wheels. Working in conjunction with a controller, they facilitate functions such as starting, speed control, hill climbing, and regenerative braking, serving as a core component of the vehicle.

Product Structure

1. Stator: Fixed shaft, silicon steel laminations, three-phase enameled windings, Hall position sensors (5 Hall signal wires).

2. Rotor: Hub housing, permanent magnets, sealed bearings at both ends.

3. Sealing Structure: End caps and sealing rings; standard products achieve IP65/IP67 water and dust resistance.

4. Wiring: Three-phase power cables (U/V/W) + Hall signal wires.

Operating Principle

Battery DC power → Controller receives signals from the throttle/brake and Hall position sensors → Controller converts DC into three-phase AC → Stator coils generate a rotating magnetic field → Rotor and wheels are driven to rotate and move.

During braking or coasting, the motor acts as a generator, feeding current back into the battery (energy recovery).

Product Specifications

Use Cases and Selection Recommendations

Key Considerations When Purchasing Electric Vehicle Motors

When purchasing motors or developing a vehicle, in addition to rated power, the following information should be confirmed with Qianjiang Motor:

● Battery voltage: Ensure compatibility between the motor and the vehicle's electrical system.

● Rated power and peak power: These correspond to continuous operation and short-term high-load demands, respectively.

● Output torque: Particularly important for vehicles involving heavy loads, hill climbing, and frequent stop-and-go driving.

● Rated speed and maximum speed: These must be determined based on wheel diameter and target vehicle speed.

● Mounting dimensions: Includes shaft diameter, mounting width, mounting hole positions, or bottom bracket dimensions.

● Motor type: Select a hub motor, mid-drive motor, or other drive configuration based on the vehicle's structure.

● Controller compatibility: Ensure the controller's voltage, current, and control method match the motor.

● Operating environment: Conditions such as outdoor use, rain, dust, and temperature fluctuations affect motor selection requirements.

● Duty cycle and load: Operating conditions such as continuous operation, intermittent operation, or frequent stop-and-go call for different motor specifications.

FAQ

Q: What types of vehicles and applications are your electric bike systems suitable for?

A: They are suitable for a wide range of vehicles, including two-, three-, and four-wheeled electric bikes, go-karts, folding e-bikes, fat-tire e-bikes, and more.

Q: Is higher motor power always better?

A: Not necessarily. Motor power must be matched to the vehicle's weight, battery system, controller, target speed, and actual load; the specific configuration requires analysis and validation.

Insufficient power fails to meet the vehicle's performance needs, while blindly choosing an oversized motor can increase system costs and weight, as well as raise the specifications required for the battery and controller.

Q: Can you provide a complete solution?

A: Yes. Qianjiang offers end-to-end services, from product design to mass production, including prototype development, small-batch and large-scale production, custom motor manufacturing, and solutions tailored to specific application scenarios.