7-Tooth Metal Motor Sprocket: Reliable Power Transmission for Your DIY Builds
Whether you are repairing a mini electric scooter, building an incubator, building a custom motorized bicycle, or designing a complex DIY robotics project, reliable power transmission is essential. This 7-Tooth Metal Motor Sprocket is engineered for durability and precision. Designed to fit securely onto standard 7mm D-shafts or round motor shafts, it provides a highly efficient mechanical transfer of power from your electric motor to your chain drive.
Constructed from heavy-duty metal, this sprocket is built to withstand high rotational speeds and the continuous wear-and-tear of mechanical tension. The built-in hub features a pre-threaded set screw (grub screw), allowing you to lock the gear firmly onto the shaft to prevent slipping during operation.
Versatile Applications
Egg Incubators, Electric Scooters & E-Bikes: An excellent replacement or upgrade drive gear for mini electric scooters, kids' ride-on toys, and customized e-bikes using standard mini chains (like 25H).
DIY Robotics: Perfect for hobbyists building tracked vehicles, mechanical pulleys, or custom motorized chain-drive systems.
General Mechanics: Can be adapted to wind-shield wiper motors, power window motors, or other small DC motors for custom engineering projects.
Package Includes:
1 x 7-Tooth Metal Motor Sprocket Gear 7mm Bore and 30mm OD



















