Electric Brushless Gearless Hub Motor

This gearless split-hub motor is specifically designed for light-load, high-speed applications, suitable for robot chassis with payloads under 200kg and operating speeds of 30–40km/h. Its gearless direct-drive structure delivers high efficiency and low noise, while the split design facilitates installation and maintenance. As a standard product, this motor does not support encoders or electromagnetic brakes, offering low cost and fast delivery. It serves as an ideal drive solution for intelligent robot chassis in logistics delivery, campus patrol, and lightweight unmanned platforms where high torque and precision braking are not mandatory requirements.

A gearless hub motor is essentially a brushless DC motor (BLDC) or permanent magnet synchronous motor (PMSM) with its stator and rotor directly integrated into the wheel hub. The motor drives the hub rotation through electromagnetic fields, achieving direct drive. Compared to traditional geared motors, it eliminates energy losses and transmission backlash associated with gearboxes, thereby achieving higher energy conversion efficiency.

Technical Specifications

 Rated Torque: 25 N.m

Suitable Load Capacity: ≤200 kg

Recommended Operating Speed: 30–40 km/h

Motor Type: Gearless Direct-Drive Hub Motor

Structure: Split-Type (Motor Body and Rim Detachable)

Feedback Support: No Encoder Support (Standard Model)

Braking Method: No Electromagnetic Brakes (Relies on External Braking System or Regenerative Braking)

1. Lightweight High-Efficiency Drive

This motor employs a gearless direct-drive structure, eliminating the traditional gearbox and thereby avoiding mechanical losses, noise, and maintenance requirements associated with gear meshing. This design significantly enhances overall transmission efficiency, particularly in the 30–40 km/h mid-to-high speed range, making it especially suitable for energy-sensitive mobile robots.

2. Split-Design Construction

Unlike integrated hub motors, this product features a split structure comprising a “motor body + rim.” The motor is fixed to the suspension or frame, while the rim can be independently removed. This significantly simplifies operations such as tire replacement, suspension system tuning, or wheel diameter adjustment. This design is particularly suited for robotic platforms requiring frequent maintenance, multi-terrain adaptability (e.g., switching between solid and pneumatic tires), or modular development. It shortens development cycles and reduces long-term operational costs.

3. High-Speed Stable Operation

The motor's electromagnetic parameters and thermal management have undergone extensive validation in high-speed, light-load scenarios. It delivers outstanding dynamic response and operational smoothness within the 30–40 km/h speed range, effectively minimizing vibration and whining at high speeds. This ensures quiet, reliable, and prolonged operation of the robot across diverse environments such as campus roads and flat outdoor terrain.

4. Reference Standards: Cost-Controlled and Rapidly Delivered

As a mature, mass-produced model requiring no custom development, it significantly reduces procurement and integration costs.

5. Encoder-Free & Electromagnetic Brake-Free Design

The standard version of this motor does not integrate an encoder or electromagnetic brake. It is suitable for open-loop control scenarios that do not require high-precision position feedback or emergency braking, such as applications involving macro-level path planning (low-speed unmanned delivery, inspection patrols, etc.).

Typical Application Scenarios

Low-speed logistics delivery robots: Unmanned delivery vehicles operating within campuses, communities, or industrial zones, typically carrying loads between 100–200kg. Their cruising speed is set at 30–35km/h to balance efficiency and safety.

Park Patrol/Cleaning Robot: An automated inspection or cleaning device designed for smart cities, industrial parks, or large venues. Typically operates on flat, hard surfaces such as asphalt or concrete, with an average daily runtime of 6–8 hours.

Smart Golf Carts and Leisure Mobility Devices: As the original design platform for this motor, golf carts have specific requirements for light loads (typically 2–4 passengers, total weight <400kg, single-wheel load <200kg), quiet operation, and comfort.

Lightweight Unmanned Transport Platform (Payload ≤200kg): In semi-structured environments such as agricultural greenhouses, warehousing and logistics, and airport ground support operations, lightweight unmanned transport platforms are commonly used to move tools, materials, or small equipment. These scenarios typically lack steep slopes or muddy terrain, but demand equipment with quick response times, agile maneuverability, and simple maintenance.