1Mod 18T Spur Gear – 20mm OD, 7mm Bore | Steel Pinion Gear For RC & Motor Applications

This is a single 1Mod (Module 1) 18-tooth spur gear, perfect for various RC car, robotics, or small machinery projects.

Key specs: it has an outer diameter of 20mm, a total height of 18mm (with a 10mm tooth height), and a step diameter of 16mm.

The bore (center hole) is 7mm, and it comes with two M4 set screws to secure it tightly onto a motor shaft or axle.

Made from black oxide #45 steel, it's strong, durable, and provides good wear resistance for power transmission.

Always double-check that the bore size and tooth count match your setup before purchasing.

A solid, no-frills gear for builders and hobbyists who need reliable performance from their drivetrain.