Description
Technical Overview
Engineers integrate this micro-sized Rubber Wheel for N20 Motor into miniature mechanical systems. Specifically, the hardware functions by pressing directly onto 3mm D-shaped motor output shafts. Consequently, this installation method establishes a high-traction rolling interface. We manufacture each wheel with a lightweight plastic hub enclosed by a rubber tyre. Because of this structural composition, the assembly minimises overall system weight. At the same time, the outer tyre significantly enhances surface grip. Furthermore, the hub features a precisely formed 3mm D-axis mounting bore. When you slide the wheel onto a matching D-shaft, the inner configuration locks mechanically against the shaft’s flat surface. Therefore, this tight interface facilitates accurate torque transfer. Ultimately, the mechanical locking action prevents rotational slipping during motor operation.
Applications
Builders choose this small Rubber Wheel for N20 Motor assembly for installations requiring low-mass, compact motion components. In particular, technicians deploy the hardware alongside N20 micro gear motors. These motors usually operate within low-voltage 3V to 6V configurations. For this reason, builders commonly implement the wheel in the assembly of micro-sumo robots, obstacle-avoiding mobile platforms, and miniature RC cars. In addition, this part enhances custom motorised hobby rigs. It also benefits tabletop positioning setups where space constraint is a primary design factor. Moreover, the design features a simple press-fit connection. As a result, this feature allows rapid assembly without requiring supplementary set screws or heavy mechanical couplers.
Technical Specifications
More Information:
Rim with Rubber Tyre:

Maker Store Tips and Tricks
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Align the flat edge of the internal D-hole carefully with the flat side of your N20 motor shaft before applying installation pressure to avoid internal hub damage.
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Push the wheel onto the motor shaft firmly but smoothly; avoid using dynamic impact tools which can stress the miniature internal gearboxes of N20 motors.
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Keep the rubber tyre surface free from oils and grease solvents during handling to ensure maximum traction performance on clean running surfaces.














