Qianjiang Motor is a professional hub motor manufacturer with over a decade of experience. The company holds ISO 9001 and CE certifications and has developed more than 80 motor models. Our electric motorcycle motors are characterized by long service life, high energy efficiency, low heat generation, quiet operation, and a wide speed regulation range.
Categorized by structure, our electric motorcycle motors primarily include hub motors, mid-drive motors, and differential rear axle motors.
Hub Motors: The most widely used type; integrated directly into the wheel hub, these are available in spoked and integrated (cast) designs.
Mid-drive Motors: Commonly used in high-end sports electric motorcycles, mounted in the center of the frame, they drive the rear wheel via a chain or belt.
Differential Rear Axle Motors: Typically used in electric tricycles or cargo vehicles; combined with an integrated differential rear axle, they drive both rear wheels simultaneously.
1. Stator: Fixed central shaft, laminated silicon steel sheets, three-phase enameled windings, and Hall position sensors (5 Hall signal wires).
2. Rotor: Hub housing, permanent magnet steel, and sealed bearings at both ends.
3. Sealing Structure: End covers and sealing rings. Standard products achieve IP65/IP67 waterproof and dustproof protection.
4. Wiring: Three thick phase wires (U/V/W) + Hall signal wires.
Battery Power Supply → The controller receives the throttle signal + motor Hall position signals → The controller converts the power into three-phase AC to drive the motor stator windings → The magnetic field drives the rotor to rotate, causing the wheel to operate.
Matching principle for the three components: Motor power < controller current-limit power. If the controller current limit is too low, it will restrict the motor's power. If the controller capacity is too high, it can easily burn out the motor windings.
|
Parameter |
Specification |
|
Size (inch) |
6/8/10/12/13/14/17/18 |
|
Rated Voltage (DCV) |
24/36/48/60/72 |
|
Rated Power (W) |
500–3000 |
|
Rated Torque (N·m) |
5–70 |
|
Speed (RPM) |
200–1500 |
|
Compatible Tires |
Off-road Tires / Road Tires / Snow Tires |
|
Efficiency (%) |
≥80 |
|
Sensor |
Hall |
|
Protection Rating |
Standard IP56; high-end customized versions can reach IP67 |
|
Color |
Black |
|
Braking Method |
Disc Brake / Electronic Brake / Drum Brake |
|
Stator Size |
115/148/173/190/207 |
|
Certification |
CE/UL |
|
Application Scenario |
Recommended Voltage |
Recommended Power |
Motor Type |
|
Urban Commuting |
60V |
800–1000W |
Integrated Hub Motor |
|
Frequent Hill Climbing / Carrying Passengers |
72V |
1500–2000W |
High-Torque Hub Motor |
|
Recreational and High-Speed Riding |
72V and Above |
3000W+ |
High-Speed Mid-Drive Motor |
|
Cargo Three-Wheel Electric Motorcycle |
60/72V |
2000–5000W |
Differential Rear Axle Motor |
Starting with hub motor technology, Qianjiang Motor has more than 10 years of R&D and mass production experience and has developed over 80 types of motor models.
We not only serve the civilian market but also provide long-term system-level solutions of “motor + electronic control + battery” for top research institutions. Our partners include Tsinghua University, Harbin Institute of Technology, Nanjing University of Aeronautics and Astronautics, Chongqing University, Southeast University, Jilin University, and others.
Qianjiang Motor has a complete R&D team covering motor structure optimization, high-torque design, efficient heat dissipation, controller matching, and software and hardware development.
We support the complete process from concept design → 3D prototype development (Prototype) → small-batch trial production → large-scale mass production under ISO 9001 standards.
The factory fully implements the ISO 9001 quality management system.
Our products are CE certified, with dozens of independently owned intellectual property rights, and meet the strict market entry standards of Europe, North America, and Southeast Asia.
A: Qianjiang Motor has a comprehensive R&D and manufacturing system and supports in-depth customization:
Electrical Parameters: Operating voltage (24V / 36V / 48V / 60V / 72V, etc.), rated power, rated speed, and torque.
Mechanical Structure: Wheel diameter (from 6 inches to 22 inches, etc.), shaft length, dropout spacing, mounting hole positions, and tire compatibility (solid tires/pneumatic tires).
System Configuration: Matching sine wave controllers, speed control throttles, and battery systems can also be provided.
|
Item |
Electric Motorcycle Motor |
Fuel-Powered Motorcycle (Starter Motor + Magneto) |
|
Installation Position |
Inside the rear wheel hub / middle of the frame (mid-drive motor) |
Starter motor: side of the engine housing; Magneto: inside the left engine cover |
|
Size and Weight |
Large in size and weight; hub motors weigh several kilograms |
Starter motor is palm-sized; magneto is a thin coil plate with a very small size |
|
Structural Form |
Three-phase brushless DC motor with stator windings, radial magnetic steel, Hall board, and three-phase wires |
Starter motor: brushed DC series motor; Magneto: multi-pole AC generating coils |
|
Transmission Method |
Motor directly drives the wheel (hub) / chain drives the rear wheel |
Starter motor drives the crankshaft by engaging the flywheel through gears; magneto rotates coaxially with the crankshaft |
A: Compared with traditional transmission systems, hub motors require relatively little maintenance.
Daily maintenance recommendations:
① Regularly check the motor connection wires.
② Avoid washing the motor connectors with high-pressure water for long periods.
③ Keep the hub surface clean.
④ Check for abnormal noise or vibration.
Looking for a manufacturer and supplier of new energy electric motorcycle motors? Qianjiang Motor offers factory-direct pricing and customized solutions. This motor efficiently converts electrical energy from the battery into mechanical energy; featuring advanced, reliable permanent magnet synchronous and brushless technologies, it is built for performance. Contact us today to request a sample.
View DetailsSend InquiryIf you are looking for a manufacturer and supplier of electric motorcycle hub motors, consider Qianjiang Motor from China. Our products feature high power and torque, a robust integrated structure, customizable high-level ingress protection, and a combination of high performance and durability.
View DetailsSend InquiryQianjiang operates its own factory and manufactures products in strict accordance with ISO 9001 standards; our products are CE certified. Our high-speed electric motorcycle motors feature thickened silicon steel stators, high-strength magnets, and all-aluminum alloy housings, supporting a wide voltage range of 48–72V with various power specifications available.
View DetailsSend InquiryThe Disc Brake Hub Motor for Electric Motorcycle is a high-performance brushless drive motor developed for various types of electric motorcycles, offered by the professional supplier, Qianjiang. It adopts an integrated left-side disc-brake structure, compatible with mainstream disc-brake systems. Compared with traditional drum-brake motors, it offers better brake compatibility, faster heat dissipation, and greater safety during high-speed riding.
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