43mm Wheel for N20 Motor

A precision, high-traction wheel that fits N20 motors.

This wheel is designed and 3D printed in a precise fashion to (practically) eliminate the wheel wobble. Excessive wheel wobble and/or lack of traction can reduce robot navigation accuracy and cause odometry-related problems with ROS2/Nav2 mapping and SLAM. In other words, iffy wheels can make your robot can drive off its intended path.

How to insert the wheel onto an N20 motor:

• Inspect the wheel hub to find the shaft notch on the hub. Please see the photos
• Orient the wheel so that the hub notch mates with the N20 motor shaft notch
• Press the wheel onto the N20 motor. Make sure the motor shaft is fully inserted.

Technical Specifications:

• Fits N20 motors: 3mm shaft diameter, 0.5mm notch, 10mm shaft length
• Excellent traction (in my opinion)
• 9.6mm hub depth; 11mm hub outer diameter
• As a guesstimate, can carry up to 0.5lbs of weight
• Friction fit – please avoid inserting the shaft multiple times to keep the fit tight.
• 3D printed using PETG plastic
  • There may be stringing left over after 3D printing. The stringing does not affect the functionality.
• Wheel thickness approx. 4.75mm
• Red, blue or white color
• Nitrile rubber tire
• Wheel weight approx. 6g
• 3D STEP model
• 3MF file

3D Printing instructions:

• I recommend using PETG. PLA is also acceptable unless your robot is exposed to the sun.
• Set Seam Position to Random in your slicer, otherwise. Without this setting your 3D printed wheel may wobble a little.

Warnings:

• This product contains small parts. Keep away from small children