When people think of gears, they often first think of automotive transmissions, industrial machinery, or large equipment. However, with the development of technology, gear applications are no longer limited to traditional mechanical fields. In recent years, rapidly growing fields such as robots, humanoid robots, drones, medical equipment, and precision automation equipment have widely used various micro gears and precision gears. Although these gears are small in size, they d

In the previous article, we introduced common types of gears, including spur gears, helical gears, internal gears, bevel gears, and worm gears. However, even when the gear type is the same, the actual material used may be completely different. For example, some gears are made of plastic, some are made of carbon steel or alloy steel, and others use stainless steel or even high-performance engineering plastics. Why can gears be made from such different materials even though the

Gears can be found in mechanical equipment, automated production lines, automobiles, robots, and even everyday products. Although a gear may look like nothing more than a round disc with teeth, it is actually an essential component in many transmission systems. From basic power transmission to changing rotational speed, increasing torque, and precisely controlling machine movement, gears play a key role behind the scenes. So, how exactly do gears transmit power? And why are t