Casters are widely used in almost any industry. According to the needs of different industries, people constantly invent all kinds of casters. There are about 150000 different castors used in various industries in the world. Caster bearing is very important to caster. There are many kinds of bearings used in casters. Without them, casters will lose their value. Therefore, we suggest that the ideal bearing should be suitable for the respective application and ensure that there is necessary safety margin. In addition to the wheel face, wheel diameter and rotating bearing, the wheel bearing determines the mobility of the caster and even the mass of the caster. For different environments, there are different requirements.
The castors used in factories are different from those used by businesses, the castors used in tool carts are different from the light castors used in hospital beds. The requirements of castors for shopping carts must be completely different from those used in factories to transport heavy loads. In general, there are four types of bearings:
1.Telling bearing: telling is a special engineering plastic, which is suitable for wet and corrosive places, with general rotational flexibility and large resistance.
2.Needle roller bearing: roller bearing after heat treatment can bear heavy load, and its rotation flexibility is general.
3.Ball bearing: the ball bearing made of high quality bearing steel can bear heavy load. It is suitable for flexible and quiet rotation.
4.Plain bearing: suitable for high and extra high load and high speed.
Generally, the weight of casters should be considered first when choosing suitable wheel frame, such as supermarkets, schools, hospitals, office buildings, hotels and other places. Because the floor is good, smooth and the goods handled are light (each caster carries 10-140kg), it is suitable to choose the electroplated wheel frame formed by stamping with thin steel plate (2-4mm). The wheel frame is light, flexible, quiet and beautiful. The electroplated wheel frame is based on ball The arrangement is divided into double row bead and single row bead. Double row beads should be used when moving or transporting frequently.
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In factories, warehouses and other places, the goods are handled frequently and the load is heavy (each caster is 280-420kg), it is suitable to select the wheel frame with double row ball which is pressed and hot forged with thick steel plate (5-6 mm).
If it is used to transport heavy objects, such as textile factories, automobile factories, machinery factories, etc., due to the heavy load and long walking distance in the factory (each caster carries 350kg-1200kg), the wheel frame cut with thick steel plate (8-12mm) should be selected. The movable wheel frame uses plane ball bearing and ball bearing on the bottom plate, so that the caster can bear heavy load, rotate flexibly and resist collision Hit and other functions.
