White Polol wheels 80x10mm for 3mm and 4mm shafts

A set of two Pololu wheels with dimensions 40x7mm in black. Intended for Micro servos with 4.8mm diameter spline and 20 teeth. Pololu 4905

A set of two Pololu wheels with dimensions 70x8mm in black. Intended for Standard servos with 5.8mm diameter spline and 25 teeth. Pololu 4925

These 17 mm long aluminum adapters convert a 3 mm diameter shaft to a 12 mm hex shaft that compatible with many common hobby RC wheels. The set includes two adapters, two M4 screws for securing wheels to the adapters, four M3 set screws for securing the adapters to motor shafts, and one 1.5 mm Allen wrench for use with the set screws.

Pololu Universal Aluminum Mounting Hub for 5mm Shaft Pair

A set of two 70x8mm white Pololu wheels. Fits D-shaped shaft with a diameter of 3mm. Pololu 1429

Wheel with rubber tire, wheel size 70 x 12 mm. Includes two mounts (for D3 and D4 axes) and a set of screws

This two-part aluminum assembly mounts directly to 5 mm diameter motor output shafts like those on many of our stepper motors and allows you to drive most scooter, skateboard, inline skate, and other common wheels that are compatible with popular 608 ball bearings.

The left Mecanum multi-directional wheel with a diameter of 97 mm, which consists of 9 rollers located around the circumference of the wheel. The wheel hub fits the 4 mm motor\'s shaft

A set of two 60x8mm blue Pololu wheels. Fits D-shaped shaft with a diameter of 3mm. Pololu 1423

This black polyurethane scooter/skate wheel measures 70 mm in diameter and 25 mm in width and works with standard 608 bearings as well as our Aluminum Scooter Wheel Adapters, which allow these wheels to be used with an assortment of motors. Pololu 3272