Cycloidal Drive Nema 17

Cycloidal Gearbox 1:19 – NEMA 17 Compatible This is a compact cycloidal gearbox with a reduction ratio of 1:19, designed to work with a NEMA 17 stepper motor. The mechanism provides smooth motion, high torque output, and good mechanical efficiency for robotics and DIY automation projects. 🔧 Required hardware To assemble the gearbox, the following components are needed: 7× M3 threaded inserts 7× M3 screws (20 mm length) 1× M3 screw (6 mm length) 3× bearings 19×10×5 mm 1× bearing 45×58×7 mm Nylon spacers (M3, 7 mm outer diameter, 10 mm length) – can also be 3D printed ⚙️ Assembly notes All M3 threaded inserts must be heat-set into the printed parts, including the motor housing. The 3× 19×10×5 bearings must be mounted on the main shaft. The 45×58×7 bearing is installed in the motor housing and supports the NEMA 17 mounting side. The M3 × 6 mm screw is used to connect the shaft to the eccentric (off-center) drive element. Nylon spacers are used as pin guides; printed versions can be used