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Description: These heavy duty wheels have a diameter of 4” and a width of 1”. They have a hard inner plastic core and a smooth outer rubber tire. These wheels utilize the .77” hub pattern and are ideal for any larger robot you create.

Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building complex electromechanical prototypes or finished projects a reality.


  • Diameter - 4”
  • Width - 1”
  • Hub Pattern - .77”


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Customer Comments

  • What screws can fit through the holes on the wheels? The product page says it’s .140" inches in diameter. Also, is there a mounting hub that I can use with this product and a 4mm diameter motor shaft? I just wanna stick the mounting hub on the motor shaft and have the mounting hub connected to the wheel.

  • Any idea the weight rating for these wheels?

  • iws the price for this rigth??

  • On the product page, what parts are needed to build “wheel mechanism 4” in fig. 11? What is the BOM? The pictures are inspiring but so many hidden parts…

Customer Reviews

5 out of 5

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Great wheel for the price

Very nice wheels, heavy duty as advertised. Good construction quality. The smooth rubber tread has good traction. Most retail vendors were out of stock on these wheels but Sparkfun had them in stock and for a good price.