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The current use of the bearings can generally be divided into rolling bearings and plain bearings; rolling bearings and sliding bearings can be distinguished by the name of the working principle of rolling bearings work friction is rolling friction, and sliding bearing work is the occurrence of sliding friction; The size of the rolling friction depends mainly on the manufacturing accuracy; and the sliding bearing friction depends mainly on the size of the bearing sliding surface material. Plain bearings are generally self-lubricating work surface; sliding bearings in accordance with the material is divided into non-metallic sliding bearings and metal bearings.
Non-metallic sliding bearings are mainly plastic bearings, plastic bearings are generally made of better performance of the engineering plastics; more professional manufacturers are generally with engineering plastics self-lubricating modification technology, through the fiber, special lubricants, glass Beads and so on to the engineering plastics self-lubricating enhanced modification to achieve a certain performance, and then modified plastic injection molding into self-lubricating plastic bearings, the current global professional manufacturers have Germany IGUS and China's CSB the company.
Metal sliding bearings are currently the most widely used three-layer composite bearings, these bearings are generally carbon steel plate for the substrate, through the sintering technology in the steel plate first sintered a layer of spherical copper powder, and then sintered on the copper layer layer 0.03mm PTFE lubricant; which is a layer of spherical copper powder in the middle of the main role is to enhance the bonding strength between the steel plate and PTFE, of course, also play a certain role in the bearing and lubrication; the current global professional manufacturers have the United States GGB Corporation, Japan's OILES company and China's CSB company;
Through the above description is not difficult to see, plastic bearings and metal sliding bearing the following differences:
1, plastic bearings are lubricating materials as a whole, long service life; and metal sliding bearing lubrication layer is only the surface of 0.003mm PTFE, when this thin layer of friction also declared the end of life;
2, the use of plastic bearings will not rust and corrosion resistance, and metal bearings easy to rust can not be used in chemical liquid;
3, the quality of plastic bearings than the metal light, which is more suitable for modern lightweight design trends;
4, plastic bearing manufacturing costs lower than the metal class; plastic bearings are used in injection molding processing is more suitable for mass production;
5, plastic bearings in the operation without any noise, with a certain vibration absorption function;
As the plastic bearings than metal sliding bearings there are many advantages, the current production of plastic bearings is growing, the use of plastic bearings are also constantly extending from the fitness equipment to the office equipment and the automotive industry, and so are using plastic bearings, Currently on the road driving the car without the use of plastic bearings. Plastic bearing market prospects are vast!


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