These wheels are great for robotics, custom RC vehicles, or any other project you need to get rolling. They measure 70 mm (2.75″) in diameter and are designed to press-fit securely onto D output shafts with a diameter of 3 mm. They are compatible with many of our gearmotors, including our micro metal gearmotors and our mini plastic gearmotors. Two mounting holes for #4 or M3 screws make it possible to use the wheel with any of our universal mounting hubs for those screw sizes, enabling these wheels to be used with our larger metal gearmotors and stepper motors. The slots in the five 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. The included silicone tires, which feature horizontal treads for improved traction, are also available separately.
The pictures below show this wheel with a universal mounting hub for 4mm shafts installed so it can work with our 20D or 25D metal gearmotors.
Black Pololu Wheel 70×8mm on a Pololu 20D mm Metal Gearmotor.
Pololu Universal Mounting Hub for 4mm Shaft mounted to Pololu Wheel 70×8mm.
Details for item #1425
Parts included with Pololu Wheel 70×8mm Pair – Black.
This is the black version of our 70×8mm wheel pair. These same-sized wheels are also available in red, yellow, blue, or white.
Other wheel options
We have similar wheels available in different sizes and colors:
Alternatives available with variations in these parameter(s):
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.
People often buy this product together with: