When we go out to work or travel, we all carry a suitcase to carry the clothes and daily necessities we need. Because the trolley case is supported by wheels, we can easily enter and leave various places. But many people don't know whether to choose the universal wheel or the airplane wheel when choosing the wheel of the trolley case. Which one is better, the universal wheel or the airplane wheel? The following will give you some references.   The difference between luggage universal wheels and airplane wheels   Different structure The universal wheel is actually a movable caster, which is a wheel that can rotate 360 ​​degrees horizontally, while the aircraft wheel is fixed and cannot be rotated.   Different materials The aircraft wheels are mainly made of silent rubber wheels, so the sound of the aircraft wheels is very special and very small when in use. The materials used in the universal wheel are different, resulting in higher noise than aircraft wheels.   Different stability The stability of the aircraft wheel is very good, and the swivel wheel is too flexible, resulting in poor stability.   Different applicable functions The universal wheel is suitable for relatively stable intersections. If the road is very stable, the wheel of the universal wheel will be very flexible, and it will feel very labor-saving to pull; but if it is on a rough road, the universal wheel will appear a little bit. It is difficult, at this time, we need to use airplane wheels, which are usually larger, so it is very easy to pull up.   Trolley case universal wheel, one-way wheel and aircraft wheel which is better   There is no good or bad, only suitable or not, depending on the occasions you often come and go.   If you need a box that is often checked in, you cannot choose a trolley case with a universal wheel. Because the wheels of the universal wheel are exposed to the outside, it is very easy to be knocked off. Aircraft wheels are more suitable for dragging on flat and rough roads, so aircraft wheels are our first choice for box selection.   The universal caster is the so-called movable caster, and its structure allows 360-degree rotation horizontally. Caster is a general term, including movable casters and fixed casters. Fixed casters have no rotating structure and cannot be rotated horizontally but only vertically. These two kinds of casters are generally used in combination. For example, the structure of the trolley is two fixed wheels in the front, and two movable universal wheels in the back near the push armrest.   The wheels of the aircraft cannot be steered, and are embedded under the suitcase, which is not easy to break.   The diameter of the one-way wheel is generally relatively large, relatively stable, and has good force bearing capacity. Yes, if it is a checked box, it is better to choose a universal caster, because it is larger and heavier, because the universal caster will be more flexible and stable in the process of walking.   Conclusion   In terms of price, the airplane wheel is more expensive than the universal wheel and the one-way wheel; if you often pull the box, the one-way wheel will be more practical and sturdy than the universal wheel and the airplane wheel; if you just go out for travel, the road is easier to walk. Local universal wheels and airplane wheels will be more comfortable and convenient.