Pololu Wheel for Micro Servo Splines (20T, 4.8mm) - 40×7mm, Black, 2-Pack
These black plastic wheels have silicone tires and measure 40 mm (1.57″) 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.
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These wheels are great for robotics, custom RC vehicles, or any other project you need to get rolling. They measure 40 mm (1.57″) in diameter and are designed for use with micro servos with 4.8 mm diameter splines with 20 teeth, such as FEETECH’s FS90R micro continuous rotation servos and FT90R digital micro continuous rotation servos. 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. The included silicone tires are also available separately.
Other wheel options
We have similar wheels available in different sizes and with different spline compatibilities:
Alternatives available with variations in these parameter(s): size shaft type
Pololu Wheels for Standard and Micro Servos – 40, 60, 70, and 90 mm diameters.
We also carry an array of wheels compatible with 3mm D shafts:
Alternatives available with variations in these parameter(s): size color
Black Pololu Wheels with 90, 80, 70, 60, 40, and 32 mm diameters (other colors available).
Pololu Wheels with 90, 80, 70, and 60 mm diameters in three colors: blue, red, and yellow.