Pololu Wheel 70×8mm Pair - White

Overview

These plastic wheels with silicone tires are 8 mm (0.3″) wide and 70 mm (2.75″) in diameter, and they are designed to press-fit securely onto 3mm-diameter D shafts, such as those on our micro metal gearmotors and our 120:1 mini plastic gearmotor.

The wheels feature two mounting holes sized for #4 or M3 screws and spaced 12.7 mm (0.5″) apart. This spacing is compatible with several of our universal mounting hubs, which can serve as adapters between these wheels and the shafts on our larger metal gearmotors and stepper motors (see the table at the bottom of this page for information about which wheels are compatible with which universal mounting hubs). The pictures below show these wheels with a universal mounting hub for 4mm shafts installed so it can work with our 20D or 25D metal gearmotors.

Pololu wheel 70×8mm on a Pololu 20D mm metal gearmotor.

Pololu Universal Mounting Hub for 4mm Shaft mounted to Pololu Wheel 70×8mm.

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.

Details for item #1429

Parts included with Pololu Wheel 70×8mm Pair – White.

This is the white version of our 70×8mm wheel pair. These same-sized wheels are also available in black, red, yellow, or blue.

Other wheel options

We have similar wheels available in different sizes and colors:

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

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
		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
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	–	–	–

White Pololu Wheel 60×8mm on a Pololu 20D mm Metal Gearmotor.

Black Pololu Wheel 90×10mm on a Pololu 37D mm Metal Gearmotor.