What is the difference between an airplane wheel and a universal wheel

The discussion about luggage airplane wheels and universal wheels is elaborated below. First, define the two:
1. universal wheel: the wheel can be 360 degrees free rotation.
2. airplane wheels: wheels can rotate freely 360 degrees, and double row design.
Further analysis, airplane wheels are usually made of silent materials such as rubber, while the universal wheel does not necessarily use silent materials. In addition, because the airplane wheel is a double-row design, under the same specifications, its price is often higher than the universal wheel.

The stability of airplane wheels is more prominent, with four double-row wheels totaling eight wheels, and most of them are made of quiet materials with shock-absorbing properties. As a result, airplane wheels perform more smoothly when pushing luggage. However, this also increases the coefficient of friction and the sound can be relatively loud. In contrast, the advantages of airplane wheels in terms of convenience are more in line with the needs of users.
In life, the common universal wheel is generally used in industrial places, such as carts, mechanical equipment, more is to consider the load, flexibility, whether corrosion resistance and other factors, to facilitate the handling of goods, while the airplane wheel is usually used in the luggage on top of the more should be considered whether it is quiet, service life and so on.
In terms of price, due to the aircraft wheel for the double-row wheel design, the cost is higher, the purchase price will be relatively expensive. However, it should be noted that the luggage for wear and tear products, practicality is crucial. Therefore, during the purchase process, you should focus on factors such as quality, material, brand and bearing.