EUDAX 100pcs 30mm x 8mm Plastic Wheels with 50pcs 2mm x 100mm Metal Shafts for DIY RC Car Truck Boat Helicopter Models - Black

The EUDAX set includes 100 black plastic toy wheels (30mm diameter, 8mm wide, with a 1.95mm shaft hole) and 50 metal rods (2mm diameter, 100mm long). These parts are sized to work together: the wheels fit onto the shafts for building custom RC cars, trucks, boats, or helicopter models. They suit STEM projects, DIY toy construction, and replacement parts for small model vehicles.

What’s in the Pack?

You get 100 plastic wheels and 50 metal shafts. The wheels are made of PP (polypropylene) plastic, all in black. Each wheel has a tire width of 8mm (0.31 inches) and a diameter of 30mm (1.2 inches). The center hole diameter is 1.95mm (0.08 inches), designed to fit snugly on a 2mm shaft. The shafts are metal, 2mm in diameter and 100mm (3.9 inches) long. The package contains no additional assembly instructions beyond what is listed.

Wheel and Shaft Measurements

What Projects Can You Build with These Wheels and Axles?

These parts are intended for STEM toys, RC model cars, trucks, boats, and helicopters. The 2mm shafts fit through the wheel holes, allowing you to create rolling chassis or propeller mounts. The 100mm shaft length gives flexibility for narrow or wide builds. Since assembly is required, you will need to cut or fit the shafts to your desired length. The wheels are lightweight plastic, good for small-scale models where weight matters. Use them in classroom STEM kits, hobby projects, or repairs for existing toy vehicles that use 2mm axles.

Frequently Asked Questions

• Do the wheels snap onto the shafts? The wheels have a 1.95mm hole meant to fit a 2mm shaft. You may need to press them on; no snap-fit mechanism is specified.
• Are the shafts hollow or solid? The data does not state, but given their use as axles, they are likely solid metal rods.
• Can these be used with other brands' wheels? If the other wheels have a 1.95-2mm hole and 2mm axle compatibility, they should work. But compatibility is not guaranteed beyond this set.
• What size hex nut or screw fits these shafts? The shafts are 2mm round rods with no threading mentioned, so they do not accept nuts or screws.