How to Evaluate Hub Motor Manufacturers in China for Robot and Medical Mobility Projects

A hub motor integrates the drive motor into the wheel area, reducing the need for a separate transmission between motor and wheel. For robots, AGVs and medical delivery platforms, that compact architecture can simplify chassis packaging, but it also makes motor, wheel, encoder, driver and control compatibility part of one system decision.

When comparing hub motor manufacturers in China, buyers should therefore evaluate the complete motion solution rather than only rated power or wheel diameter. SECURE's current wheel hub motor range includes 5.5-inch, 6.5-inch and 8-inch models together with a dual-channel driver specification.

What Should Buyers Verify Before Comparing Hub Motor Suppliers?

Start with the mechanical requirements: total platform weight, payload, wheel count, wheel diameter, mounting space, desired speed and required torque. Then add the electrical and control requirements: supply voltage, peak current, encoder feedback, communication interface, braking method and control mode.

This matters because two suppliers can offer a similar-looking wheel but a very different hub motor design. One may integrate the motor and encoder around a direct-drive architecture, while another may use a different internal structure or require a separate controller. The system-level fit determines whether the motor can be integrated cleanly into the chassis.

For technical background on direct-drive in-wheel architectures, see the open-access review Critical Review of Direct-Drive In-Wheel Motors in Electric Vehicles and SAE's paper on Structural Integrity of In-Wheel Motors.

Which Hub Motor Specifications Matter Most for Integration?

Use these values only for the current SECURE models shown on the product page. A buyer should not generalize one model's torque, current or load capacity to another hub motor type.

How Should Engineering and Factory Support Be Evaluated?

A capable hub motor factory should be able to review more than a motor datasheet. For an OEM project, the supplier should confirm wheel loading, shaft and mounting details, driver compatibility, cable routing, encoder feedback, communication protocol, braking logic and thermal or environmental limits.

SECURE's hub motor page states that the system supports position and speed control, electronic braking, and RS232/CAN/485 interfaces. The driver is listed with FOC control and dual-channel current capability. These details are useful because they let the OEM compare the motor and driver as an integrated control package rather than purchasing the wheel in isolation.

Factory capability also matters for repeatability and volume. SECURE states on its website that its in-house caster factory operates six production lines, including two fully automatic lines, with annual capacity of 3 million sets of high-end casters. For a hub-motor project, buyers should still confirm the specific production, test and lead-time arrangement for the quoted model.

If you are sourcing a wheel hub motor for sale, send the platform weight, wheel quantity, target speed, voltage, torque requirement, mounting space, communication interface and expected annual volume. This gives the supplier enough information to recommend a model instead of simply quoting the nearest wheel diameter.

Conclusion

Comparing hub motor manufacturers in China requires a system-level review of mechanical load, torque, voltage, encoder, driver, communication, braking, protection and integration support. A wheel that fits physically can still be wrong electrically or dynamically.

SECURE's current hub-motor range provides published model data for wheel size, load, power, torque, encoder, protection and driver interfaces. OEM buyers can use the hub motor product page as the starting point and submit chassis and control requirements for technical matching.

FAQs

How does a hub motor work?

A hub motor places the electric drive motor in or around the wheel hub so torque is transmitted directly to the wheel without a separate chain or belt drive. The exact hub motor working principle depends on the motor architecture and controller.

What are the main hub motor types?

A broad engineering distinction is between geared and gearless direct-drive hub motors. For an OEM project, the more useful classification is the exact motor structure, torque-speed requirement, encoder and controller needed by the platform.

What is the rated voltage of SECURE's current hub motor range?

The product page lists 24 V as the rated voltage and a 12-48 V voltage range for the hub motor, while the driver table lists DC 20-55 V. Confirm the intended system voltage with SECURE for the selected model and controller.

What should I send to a hub motor supplier before requesting a sample?

Send platform weight, payload, wheel count, target speed, torque requirement, supply voltage, mounting dimensions, encoder or positioning needs, communication interface, braking logic, operating environment and expected quantity.