The work of sliding bearing is sliding friction;The rolling friction is mainly depends on the size of the manufacturing accuracy;And the size of the sliding bearing friction is mainly depends on the slip plane of the bearing material.Sliding bearing generally face all have self-lubricating function;Sliding bearing according to the material divided into sliding bearing and sliding bearing metal, not of metal.Non-metallic sliding bearing mainly plastic bearings, plastic bearings are generally USES the engineering plastic with good performance comparison;More professional manufacturers generally have self-lubricating engineering plastics modification technology, through the fibers, special lubricants, glass beads and so on to self-lubrication engineering plastics modification to enhance performance, and then use modified plastics by injection molding processing into self-lubricating plastic bearings.
Metal sliding bearing bearing is currently the most used three layer composite bearings, the bearings are generally based on carbon steel substrate, through sintering technology in steel plate on a layer of spherical copper powder sintered first, and then in the copper powder sintering layer on layer the 0.03 mm PTFE lubricant;One intermediate layer spherical copper powder main effect is to enhance the bonding strength between the steel plate with PTFE, at work, of course, also have certain bearing and lubrication effect.
Through the above shows that it is not hard to see, plastic bearings and metal sliding bearing the following difference: 1, the overall plastic bearings are lubricating material, long service life.The metal sliding bearing lubrication layer is only 0.003 mm of PTFE surface, thin layer when the friction after it proclaims the end of the service life;2, plastic bearings use will not happen in phenomenon of rust and corrosion resistance, and metal type of bearing is easy to rust cannot be applied to chemical liquid;3, plastic lighter than metal bearing quality, it is more suitable for modern lightweight design trend;4, plastic bearing manufacturing cost is relatively lower metals;Plastic bearings is the injection molding processing and become more suitable for mass production;5, plastic bearings in operation without any noise, has a certain vibration absorption function;Due to plastic bearing is metal sliding bearing has many advantages, the production of plastic bearing is expanding increasingly, the use of plastic bearing situation is outspread, from fitness equipment to the office equipment and automobile industry, and so on all use plastic bearings, run on the roads of the car was not to use plastic bearings.Plastic bearing the market foreground is wide!
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