The mechanical transmission model includes 6 common transmission modes: belt drive, worm gear drive, chain drive, spur gear drive, bevel gear drive, friction drive Working principle: The instrument is driven by a DC motor. First, the DC motor drives the worm through the belt to complete the belt transmission, and then the worm drives the worm wheel to realize the worm wheel transmission. After the above two stages of reduction, the worm wheel shaft drives the next stage of chain transmission. Next, the spur gear transmission, bevel gear transmission and friction transmission are used. Suitable for people aged 14 and above Easy to clean and store, stable and durable, meeting the needs of professional experiments in various scenarios. Inspire Curiosity & Creativity – Not only a teaching aid but also an inspiring science gift. Encourages logical thinking, hands-on skills, and a deeper interest in physics, making learning both effective and enjoyable.