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These Pololu white plastic wheels have silicone tyres and measure 60mm in diameter. They mount onto micro servo splines with 21 teeth and a 4.8 mm diameter, such as the splines on many of our servos including the TowerPro SG90 with continuous rotation.
This listing is for a pair of wheels.
These wheels are great for robotics, custom RC vehicles, or any other project you need to get rolling. The combination can serve as a small, inexpensive, and easy-to-control drive system for a miniature robot. The wheel presses onto the servo spline just like a typical servo horn, and the small screw included with your servo (for mounting servo horns) should be used to hold the wheel in place.
Six mounting holes for #4 or M3 screws make it possible to use the wheel with any of our Pololu universal mounting hubs for those screw sizes, enabling these wheels to be used with our metal gearmotors and stepper motors. The slots in the six spokes fit #2 or M2 screws and allow additional accessories to be mounted to the wheel such as decorations or parts of an encoder system.
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