quality motor pulley for 3D printers and small mechanical projects Key benefits Reliable power transmission: Designed to transfer torque from motor shafts to belts or other drive components with a secure, concentric fit. Durable construction: Made from quality material with surface oxidation treatment to resist rust and corrosion for long service life. Easy compatibility check: Choose the pulley inner diameter to match your shaft diameter (for example, an 8 mm shaft requires a pulley with an 8 mm inner bore) for a precise, slip installation. Versatile use: Suitable for motors, mini main shafts and model design applications where compact, accurate shaft coupling is required. What it does for you Eliminates guesswork when matching pulleys to shafts by using a onetoone innerbore/shaft sizing approach. Reduces maintenance and replacement frequency thanks to corrosionresistant surface treatment and sturdy construction. Provides predictable, repeatable motion for printing, modeling, and small machinery tasks. Important attributes Function: Motor shaft pulley for transmitting rotational motion. Compatibility: Works with motor shafts and mini main shafts when the pulley inner diameter matches the shaft diameter. Size guidance: Match inner bore to shaft diameter (example: shaft = 8 mm → pulley inner diameter = 8 mm). Material and finish: quality material with oxidation surface treatment for antirust and anticorrosion performance. Performance: Sturdy, durable construction intended for reliable, longlasting use in small drive systems. Typical use scenarios 3D printer builds: or install pulleys on stepper motors for X/Y belt drives to ensure accurate layer alignment and motion control. Model design and hobby projects: Drive small shafts in scale models, robotics, or custom mechanical assemblies where compact, reliable pulleys are needed. Miniature motor applications: Couple motors to gear trains or belt systems in DIY devices, testing rigs, or educational projects that require precise shaft transmission. Installation tips Measure the shaft diameter carefully and select a pulley with the matching inner diameter for a snug fit. Confirm alignment and set screws (if applicable) are tightened to prevent slipping during operation. If using in corrosive or humid environments, periodic inspection is recommended despite the oxidation treatment. Packed with the core features from the original specifications, this pulley provides a simple, durable solution for motor shaft transmission in 3D printers, model design, and other small mechanical projects.