No fixer Universal wheel Can be padded under the wheel of a similar size of the box, the box should be a little stronger, so that the fixed, will not run around.
The universal wheel is the so-called movable caster, which is structured to allow horizontal 360-degree rotation. Caster is a general term, including movable casters and fixed casters. Fixed casters have no swivel structure, can not rotate horizontally only vertical rotation. These two kinds of casters are generally used in conjunction with, for example, the structure of the cart is the front of the two fixed wheels, the back near the push handrail is two movable universal wheel.
Universal wheel is the bracket installed in the caster wheel can be rotated horizontally 360 degrees in the dynamic load or static load.
There are various materials used to manufacture the universal wheel, the most common materials are: nylon, polyurethane, rubber, cast iron and other materials. Widely used in mining, machinery and equipment, electronic equipment, medical equipment, engineering decoration, textile, printing and dyeing, furniture, logistics equipment, warehousing, turnover trucks, chassis, cabinets, equipment, electromechanical, clean room, production lines, large supermarkets and many other industries and various fields.
According to their different uses, bearings are divided into iron core, aluminum core, plastic core, size 1 inch to 8 inches. Among them, the iron core, aluminum core is generally a heavy-duty bearing wheel, often equipped with brakes when used.