Supermarket cart four wheels are universal wheels?

Universal wheel is the so-called movable casters, its structure allows horizontal 360-degree rotation. Caster is a general term, including movable casters and fixed casters. Fixed casters do not have a rotating 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, iron core, aluminum core is generally heavy-duty bearing wheel, the use of often equipped with brake apparatus.