Generally speaking, the universal wheel refers to the flat-bottomed universal wheel, the installation of the caster plate to see the installation of the size of the flat plate (the distance between the four holes), and then the flat plate of the equipment to open the hole, and then install the screw, fixed with a nut on
Universal wheel, in fact, is a kind of casters that we come into contact with in our daily lives. Casters according to the rotation system, divided into directional wheel and universal wheel, usually they are used together. Directional wheel is the wheel mounted on the cart fixed bracket, the so-called fixed bracket, is relative to the direction of the cart is fixed, often used to limit the direction of movement of the cart, so that the cart along the straight line direction of movement, a lot of luggage, fishing rods on the use of this kind of casters.