Pololu Wheel for Micro Servo Splines (20T, 4.8mm) - 40×7mm, White, 2-Pack

These white 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 .

AUD$ 7.95

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Our Code: SKU-006384

Supplier Link: [Pololu MPN:4909]


Description

Overview

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.

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 (20T, 4.8mm).

Other wheel options

We have similar wheels available in different sizes and colors and with different spline compatibilities:

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Alternatives available with variations in these parameter(s): size colour shaft type Select variant…

Pololu Wheels for Standard and Micro Servos – 40, 60, 70, and 90 mm diameters. (1)

We also carry an array of wheels compatible with 3mm D shafts:

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Several alternatives are available for this product. Select from the options below and click “Go” to find a particular version.

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Alternatives available with variations in these parameter(s): size colour Select variant…

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.


Specifications

Dimensions

Size: 40 × 7 mm
Weight: 4.5 g1

General specifications

Shaft type: 20T, 4.8 mm diameter servo spline
Colour: white

Identifying markings

Molded part dev codes: whe10a

Notes:

1
Per wheel, including tyre.

Resources

File downloads

Dimension diagrams for Pololu Servo Wheels (1MB pdf)
This file contains dimension diagrams for the 40×7mm, 60×8mm, 70×8mm, and 90×10mm Pololu Servo Wheels.
3D model of Pololu Wheel for Micro Servo Splines 40×7mm (2MB step)

FAQs

What are the Pololu wheels made of?
  • The material used to make the hubs of Pololu wheels is ABS (also known as Polylac) PA-747.
  • The material used to make the tires of Pololu Wheel 42×19mm is natural rubber.
  • The material used to make the tires of all Pololu wheels (except the Pololu Wheel 42×19mm) is silicone rubber.

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