Mecanum wheel is used in competition robots and special robots, omnidirectional movement is often a necessary function. Omnidirectional movement means that the movement of translation and rotation in any direction can be made in the plane. In order to achieve omni-directional movement, robots usually use omni-directional wheels or mecanum wheels.

Mecanum wheel is a device that can move in all directions. This kind of all-round movement is based on the principle of a central wheel with many axles around the wheel. These peripheral axles turn a part of the wheel steering force into a normal force surface of the wheel. Depending on the direction and speed of each wheel, the final combination of these forces produces a resultant force vector in any required direction, thus ensuring that the platform can move freely in the direction of the final resultant force vector without changing the direction of the wheel itself. There are many polyurethane rubber wheels distributed obliquely on its rim, so the wheels can slide laterally. The generatrix of the small roller is very special. When the wheel rotates around the fixed wheel spindle, the envelope of each polyurethane wheel is cylindrical, so the wheel can roll forward continuously. Mecanum wheel is a kind of all-round wheel with compact structure and flexible movement. There are 4 new wheels for combination, which can realize all-round moving function more flexibly and conveniently

Disadvantages of mecanum wheel

The force of mecanum wheel is not parallel to the walking direction, which will inevitably lead to the force in the vertical direction, and the wheel and the ground will slide relatively, which will cause serious wear on the wheel surface. Shanghai Pepsen Polyurethane Co., Ltd manufactures polyurethane mecanum wheel according to hardness and different load-bearing requirements., effectively solving the problem of fast wear and easy degumming of the polyurethane rubber coated wheel.