High-Performance 5.5 Inch 138mm Diameter Brushless DC Hub Motor for 39mm Tire Width - Efficient Power for Small and Medium Equipment

Contact us today to inquire about our high-quality 5.5-inch 138mm brushless DC hub motor and enhance your equipment’s performance with reliable power solutions!
Shenzhen Jinhaixin Holdings Co., Ltd Shenzhen, China
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Product Parameters

The main parameters

Number Projects Specification Remarks
1 Motor diameter 138mm (slight deviation including tire size) Subject to actual product
2 Rated voltage 36V
3 Rated power 350W
4 Rated rotating speed 400±50rpm
5 Rated current 6±0.5A
6 Theoretical torque 8.6 N/M
7 Degree of phases 120°
8 Number of poles 10 pole pairs 20PCS
9 Out of the shaft Double-threaded shaft (mm)
10 Lead exposed 500mm
11 Size of connectors 3+6 waterproof connector
12 Brake mode Electromagnetic brake
13 Shaft material 45cr (alloy steel)
14 Waterproof rating IP55
15 Maximum load 100kg
16 Environmental requirements -20℃ to 65℃
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Product Details
Product Introduction
The 5.5 Inch 138mm Diameter Brushless DC Hub Motor from Shenzhen Jinhaixin Holdings Co., Ltd. offers outstanding performance and durability for various small and medium-sized machinery. Designed with a 39mm tire width compatibility and dual-sided threaded axle, this motor ensures easy installation and stable operation. Equipped with premium materials and advanced manufacturing, it delivers excellent resistance to wear and water, making it suitable for demanding environments. With a 68mm reduction ratio, the motor provides efficient torque transmission, enhancing overall equipment productivity. Jinhaixin, a leader in low-voltage motor systems design and manufacture, offers professional customization and comprehensive after-sales support, guaranteeing long-term product reliability and customer satisfaction, making this motor an optimal choice for your mobility and power needs.
Advantages and features
1. Precise 138mm diameter and 39mm tire width compatibility for versatile applications.2. Dual-sided threaded axle design for secure and convenient installation.3. High-quality materials ensure excellent durability and water resistance.4. 68mm reduction ratio optimizes torque output and energy efficiency.5. Developed by a trusted manufacturer specializing in low-voltage motor systems.6. Customization options and reliable after-sales service support long-term use.
Application Scenario
Ideal for integration into small and medium-sized electric vehicles, personal mobility devices, electric scooters, robotics, and other industrial and consumer equipment requiring efficient and compact hub motor solutions. Suitable for OEMs, machinery manufacturers, and technology developers seeking reliable powertrain components.
Corporate Information
Shenzhen Jinhaixin Holdings Co., Ltd
Service Guarantee
Service Information
Address
Longgang District, Shenzhen, China
Advisory Message
Pre-sales advice
1. Connect the motor to the controller and power supply according to the wiring diagram on the controller.
2. The tire is mounted on the outside of the outer rotor hub.
3. Power cords passing through metal parts should be protected with non-metallic materials.
4. Special Note: If the motor does not move, jams, or overheats rapidly when the drive powers on the motor, the power must be disconnected and the electrical angle or drive output adjusted within three seconds to avoid motor failure.
After-sales service
Please feel free to contact me if you have any questions.
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