127mm Keyway Aluminum Omni Wheel with Bearing Rollers 14153 features:

The (5 inch) 127mm Omni-directional wheels are unique as they are able to roll freely in two directions. The omni wheel is one design for a wheel which can 

move in any direction. It is a conventional wheel with a series of rollers attached to its circumference. These rollers have an axis of rotation at 90° to the axis of rotation 

of the wheel. Each wheel applies force to the platform at 90° to the axis of rotation of the wheel. Composition of vector force of each wheel makes the platform to move

 in any direction with any rotation.

Key Features:

Diameter: 5 inches(127mm)

Axial width: 18mm

Number of plate: 2

Number of roller: 10

Body material: Aluminum alloy

Roller material: Nylon

Roller bearing : Bearing Rollers

Roller diameter: 30mm

Net weight: 860g

Load capacity: 80kg

127mm Keyway Aluminum Omni Wheel with Bearing Rollers 14153 as below:

What are the advantages and disadvantages of the Omni wheel?

The advantages of the Mecanum wheel and the omnidirectional wheel are flexibility and convenience, and the disadvantage is expensive. The omnidirectional wheel, as the name suggests,

 can move in any direction, at any angle, and in any direction. mecanum wheel these rollers having an axis of rotation at 45° to the plane parallel to the axis of rotation of the wheel.