What this product does A precision pulley designed for motortoshaft power transmission in small mechanical projects. It provides a secure, concentric connection between a motor or drive shaft and a belt or coupling system. Key benefits (why you need it) Reliable torque transfer: engineered for a tight fit on matched shafts to reduce slippage and improve motion accuracy. Longlasting performance: manufactured from quality metal with a surface oxidation finish to resist rust and corrosion in workshop environments. Simple compatibility: clearly sized bores let you match the pulley to your existing shafts for fast, dependable installation. Features that stand out Sturdy, durable construction that holds up to repeated use in prototyping and hobby applications. Oxidized surface treatment for enhanced antirust and anticorrosion protection. Designed for motor shafts, mini main shafts, and other small drive shafts used in model design and transmission systems. How to choose the right pulley Measure the diameter of your installation shaft carefully. Select a pulley whose inner bore equals the measured shaft diameter. Example: for an 8 mm shaft choose a pulley with an 8 mm inner diameter for a correct fit. Confirm fit before final installation to ensure concentric mounting and reliable operation. Typical applications (practical scenarios) 3D printer assemblies: use as a drive pulley for X/Y/Z axis belts or filament feed systems. Mini CNC or laser machines: transfer motion from stepper motors to lead screws or belt drives. Hobby robotics and scale models: power small gearboxes, wheels, or rotating elements where space and precision matter. Performance notes results when the pulley bore matches the shaft exactly and the shaft is of burrs or excessive wear. Designed for small to mediumload hobby and prototyping applications; provides repeatable alignment and corrosion resistance for continued use. This pulley is a practical choice for builders and modelers needing a durable, corrosionresistant pulley that fits accurately and transmits shaft motion reliably.