Pololu Wheel for Micro Servo Splines (20T, 4.8mm) - 60×8mm, Black, 2-Pack
These black plastic wheels have silicone tires and measure 60 mm (2.36″) in diameter. They mount onto micro servo splines with 20 teeth and a 4.8 mm diameter, such as the splines on FEETECH’s FS90R micro continuous rotation servos and FT90R digital micro continuous rotation servos. This product is 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 the servo accessory pack for mounting servo horns should be used to hold the wheel in place.
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