These red plastic wheels have silicone tires and measure 40 mm (1.57″) in diameter. They mount onto micro servo splines with 21 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 .
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Our Code: SKU-006383
Supplier Link: [Pololu MPN:4906]
These red plastic wheels have silicone tires and measure 40 mm (1.57″) in diameter. They mount onto micro servo splines with 21 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 plastic wheels with silicone tires are 7 mm (0.28″) wide and 40 mm (1.57″) in diameter and are designed for use with micro servos with 4.8 mm diameter splines with 21 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.
60 mm and 40 mm Pololu Wheels for Micro Servo Splines on FEETECH’s FT90R and FS90R micro continuous rotation servos. |
60 mm and 40 mm Pololu Wheels for Micro Servo Splines (21T, 4.8mm). |
The included silicone tires, which feature horizontal treads for improved traction, are also available separately.
Parts included with Pololu Wheel for Micro Servo Splines (21T, 4.8mm) – 40×7mm, Red, 2-Pack.
This is the red version of our 40×7mm wheel pair for micro servo splines. These same-sized wheels are also available in black or white.
We have similar wheels available in different sizes and colors:
Alternatives available with variations in these parameter(s): size colour Select variant…
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Black Pololu Wheels with 90, 80, 70, 60, 40, and 32 mm diameters (other colors available). |
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Pololu Wheels with 90, 80, 70, and 60 mm diameters in three colors: blue, red, and yellow. |
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These wheels are compatible with our Universal Mounting Hubs, which are available for different shaft sizes and mounting hole thread options, as shown in the table below. These mounting hubs can be used as adapters between these wheels and a variety of different motor shafts.
| Pololu Universal Mounting Hubs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| for 3mm shafts | for 4mm shafts | for 5mm shafts | for 6mm shafts | for 1/4″ shafts | for 8mm shafts | ||||||||
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| M3 holes #4-40 holes #2-56 holes |
M3 holes #4-40 holes |
M3 holes #4-40 holes |
M3 holes #4-40 holes |
M3 holes #4-40 holes |
M3 holes |
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| Pololu Wheels for 3mm Shafts | 32×7mm | – | – | – | – | – | – | ||||||
| 40×7mm | – | – | – | – | – | – | |||||||
| 60×8mm | – | – | – | ||||||||||
| 70×8mm | – | – | – | ||||||||||
| 80×10mm | |||||||||||||
| 90×10mm | |||||||||||||
| Pololu Wheels for Servos | 40×7mm | – | – | – | – | – | – | ||||||
| 60×8mm | |||||||||||||
| 70×10mm | – | – | – | ||||||||||
| 90×10mm | – | – | – | ||||||||||
 Pololu Multi-Hub Wheels |
80×10mm | – | – | – | |||||||||
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| Size: | 40 × 7 mm |
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| Weight: | 4.5 g1 |
| Shaft type: | 21T, 4.8 mm diameter servo spline |
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| Colour: | red |
| Molded part dev codes: | whe10a |
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This file contains dimension diagrams for the 40×7mm, 60×8mm, 70×8mm, and 90×10mm Pololu Servo Wheels.
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