New Frameless Motor Series for Next-Generation Robotics

2026-09-18 10:33:44 3xadmin 2

3X MOTION is pleased to introduce its new outer-rotor frameless motor series, developed for compact, high-performance motion systems in robotics and intelligent automation.

Designed as a rotor-and-stator solution without a traditional motor housing, the frameless architecture allows direct integration into the customer’s mechanical structure. This helps reduce overall size and weight while providing greater flexibility for customized actuator and drive-system design.


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Compact Design, High Torque Density

The new series features an outer-rotor structure, making it especially suitable for applications requiring high torque within a limited installation space.

Key advantages include:

  • High torque density

  • Compact axial dimensions

  • Smooth low-speed operation

  • Flexible mechanical integration

  • Suitable for encoder, gearbox and hollow-shaft designs

  • Easy integration into customized robotic actuators

The series is designed for applications including humanoid robots, robotic arms, quadruped robots, AGVs, precision rotary systems and mobile robotic platforms.

Ø61 mm Series for Robotic Lawn Mowers

Among the new product range, the Ø61 mm frameless motor series is particularly suitable for integration with compact gearboxes.

By combining the motor with a planetary gearbox or other reduction system, manufacturers can create a compact, low-speed and high-torque drive module for robotic lawn mowers.

A typical drive configuration can include:

Ø61 mm Frameless BLDC Motor + Gearbox + Encoder + Wheel / Output Flange

This combination provides the torque required for frequent starting, stopping, steering and operation on uneven terrain, while maintaining a compact drive structure.

The reduction ratio can also be selected according to different requirements for wheel diameter, travelling speed, vehicle weight, climbing capability and output torque.

Engineered for Integration

For modern robotic systems, the motor is increasingly becoming part of the overall mechanical design rather than a standalone component.

3X MOTION’s new frameless motor series provides engineers with greater flexibility to integrate the motor with gearboxes, encoders,  and control systems, helping create lighter, more compact and highly integrated motion solutions.

From robotic joints to robotic lawn mower drive systems, 3X MOTION frameless motors are engineered for integration and intelligent motion.