EUDAX 30mm Plastic Wheels & 2mm Metal Axles Combo - 100 Wheels + 50 Axles for DIY RC Models

This EUDAX set supplies 100 plastic toy wheels and 50 metal axles for building or repairing remote control cars, trucks, boats, and helicopters. Each wheel is 30mm in diameter with a 9mm tire width, and each axle is a 2mm thick, 100mm long round rod. The wheels are black, the axles silver, making it a straightforward parts kit for STEM projects and hobby repairs.

What do you get in the package?

Exactly 100 black plastic wheels and 50 silver metal axles. The wheels have a smooth, treadless surface and a center hole sized for pressure-fit mounting on 2mm rods. No additional hardware or instructions are included—just the raw components.

Wheel and axle dimensions at a glance

What can you build with these parts?

These components are sized for small-scale DIY models: toy RC cars, mini trucks, boat propellers, helicopter landing gear, or any STEM project that needs rolling wheels and rigid axles. The wheel's shaft hole is intentionally 0.05 mm smaller than the axle, creating a friction fit that holds without glue, though a drop of adhesive can make the connection permanent for higher-torque applications.

How does the wheel fit on the shaft?

The wheel's center hole measures 1.95 mm across, designed to press onto a standard 2 mm rod. This slight interference fit keeps the wheel from slipping during light use. For more demanding builds, such as a fast RC car, you may want to secure the joint with superglue or epoxy.

Do the axles come cut to length?

The axles are supplied as straight 100 mm rods. You cut them to the exact length you need using a hobby saw, wire cutter, or a Dremel. They are not threaded, so attachment is purely by press-fit or adhesive.

Frequently asked questions

Will these wheels work with standard RC car hubs?

No, these are raw plastic wheels without bearings or hex adapters. They are intended for DIY scratch-building where you press the wheel directly onto a rod axle.

Are these axles strong enough for a medium-sized RC truck?

The 2 mm metal rods are suitable for lightweight models up to a few hundred grams. For heavier vehicles, consider thicker axles or reinforcing the joint.

How many wheels and axles does this set include?

100 wheels and 50 axles – enough for 50 four-wheeled vehicles or 25 six-wheeled ones.

Can I use these parts for non-RC projects?

Absolutely. The wheels work as rollers for small carts, pulley wheels, or parts for robotic chassis. The axles can serve as structural supports, hinge pins, or spacer rods.