Caster Wheel

A caster wheel is a small wheel designed to support and provide smooth movement to robots, carts, and other moving structures. In robotics projects, it is commonly used as a supporting wheel along with two or more motor-driven wheels. The caster wheel can rotate freely, allowing the robot to move forward, backward, and turn easily. It is widely used in robot cars, line-following robots, obstacle-avoiding robots, and other mobile robotic projects.