1. As the first choice match castor wheels: general wheels, nylon, rubber, polyurethane, polyurethane elastic rubber core package, cast iron, plastic, etc. Nylon wheel, wheel always use the room on the ground of which can travel outside of the polyurethane wheel can satisfy the processing of your application of elastic rubber tire actual station, medical equipment, wooden floor, ceramic tile air noise small quiet air travel on foot; Unyielding sky or scrap metal and other materials in the garden in the air. 2. If choose fully shows the castor castor: generally choose first consider heavy-duty casters, such as supermarkets, families, schools, hospitals, office buildings, hotels and other places, because the air is good, smooth, and smooth and processing goods lighter ( Each trundle bearing in 50 - 150 kg) , cut into 3 - 4 mm steel plate stamping electroplated grinding wheel frame, wheel light sports and innocent, quiet and good, the plating wheel frame is divided into double row bead and single row ball bead arrangement, using double row bead, if they move or transportation; 3. Total weight castor: orders of critical load across many castor skills, it is necessary to know the transportation weight, maximum load and the number of single wheel casters. 4. Universal caster wheel diameter: usually the wheel diameter is larger, the more simple push load means that bigger is better able to take good care of the ground is not damaged qianan region, select the size of the wheel diameter begin to carry weight should consider van starting thrust loads. 5. Keep the wheel rotational mobility larger single wheel move more rigid, needle roller bearings can carry heavier load, mobile greater resistance; Installation quality of single wheel bearings can carry heavier load rolling more effectively, intelligent peace. / news_61。