Dummy Motor / Dead Axle for Robot Chassis – 6mm Shaft

Building a stable robot chassis often requires four wheels, but powering all of them can be expensive and unnecessary. The Dummy Motor (Dead Axle) is the perfect solution for adding stability to your robot without the cost or power drain of an extra motor.

Structural Support for Free Wheels

This unit is designed to replicate the exact shape and size of a standard centre shaft gear  but it is completely passive. It serves as a dead axle, providing a sturdy point to mount a free-spinning (unpowered) wheel. This allows you to build a “2-Wheel Drive” robot that looks like a “4-Wheel Drive” one, ensuring it stays level and balanced.

Universal Compatibility

The module features a standard 6mm Shaft, making it compatible with most common robot wheels.

Cost-Effective Engineering

Using dummy motors significantly reduces the complexity of your electronics (no need for 4-channel motor drivers) and extends battery life, making it ideal for educational robots and hobbyist chassis designs.

Key Features

• Standard Form Factor: Fits into the same mounting brackets as standard Centre shaft motors.

• Passive Design: No electrical parts; purely structural support.

• Cost Saving: Reduces the need for expensive motors and motor drivers.

• Durable Build: Made from high-quality, lightweight plastic.

• Versatile Shaft: 6mm shaft fits most robot wheels; adaptable to 4mm via coupling.

Technical Specifications

Typical Application Scenarios

• 4-Wheel Chassis: Use 2 real motors for drive and 2 dummy motors for balance.

• Educational Kits: Reducing the cost of line follower or obstacle avoider bots.

• Trailer Mechanisms: Adding unpowered wheels to a trailer towed by a robot.

Important Product Disclaimer

Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product. Product images are shown for illustrative purposes only and may differ from the actual product.

Note

This is NOT a functional motor. It has no internal gears or electronics. It is a plastic shell with a shaft used for structural support only. Images are for representation only. The actual product may slightly vary in appearance.