This top - notch copper coupling is a must - have for anyone looking to connect wheels and motors. It's perfect for creating a robot or a small mobile platform motion system. The coupling is precisely CNC machined, ensuring high - quality workmanship and great precision. With a 4mm inner bore diameter, it fits DFRobot's rubber wheels and various DC gearmotors. Thanks to the copper material, it's super durable and reliable.
Coupling Dimensions
Adaptable Motors:
Adaptable Motor Dimension Diagram
SPECIFICATION
- Material: Brass
- Motor Shaft Diameter: 4mm
- Dimension: φ11 * mm/φ0.43 * 0.71 inches
- Weight: 14g±0.2g

Using this copper coupling is easy. First, make sure the motor shaft diameter is 4mm, which is the size this coupling is designed for. Then, simply insert the motor shaft into the inner bore of the coupling. Next, attach the DFRobot rubber wheel or other compatible wheel to the other end of the coupling. When using it, avoid applying excessive force that could damage the coupling. Keep it away from high - temperature and high - humidity environments to prevent the copper from corroding. For maintenance, you can use a dry cloth to wipe it clean regularly. If you notice any signs of wear or damage, replace the coupling to ensure the proper functioning of your robot or small mobile platform.