8 Inch 254mm Double Aluminum Omni Wheel With bearing rollers&Central bearing 14147 features:

Zoty Bearing

This 254mm heavy duty double aluminum Omni-directional Wheels is a robust, durable and double row wheel that provides easy 360° movement, 

with rotational and sideways maneuverability. The omni wheel is used for robotic, trolleys, transfer conveyor, shipping carts, and luggage and so on.

Key Features:

Diameter: 10 inches(254mm)

Axial width: 30mm

Number of plate: 2

Number of roller: 10

Body material: Aluminum alloy

Roller material: Nylon

Roller bearing : Bearing Rollers

Roller diameter: 50mm

Net weight: 4.5kg

Load capacity: 100kg

8 Inch 254mm Double Aluminum Omni Wheel With bearing rollers&Central bearing 14147 pictures 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.