Bearings in general can be divided into the rolling bearing and sliding bearing; the working principle of the rolling bearing and the sliding bearing can be distinguished by name, Rolling work occurs when friction is rolling friction, and is sliding friction occurs when the sliding bearings work; rolling friction depends mainly on the size and manufacturing accuracy; sliding bearing friction material depends mainly on the size of the bearing sliding surfaces. General face plain bearings are self-lubricating function; plain bearings in accordance with the material is divided into non-metallic sliding bearings and metal sliding bearing;

    Non-metallic sliding bearing mainly plastic bearings, plastic bearings are generally relatively good performance of engineering plastics; professional manufacturers generally have the engineering plastic self-lubricating modification technology, through fiber, specialty lubricants, glass beads for engineering plastics reinforced modified so as to achieve a certain performance, then modified plastics injection molding into a self-lubricating plastic bearings self-lubricating.

    Metal sliding bearings currently used most is the three-layer composite bearings, such bearings are usually carbon steel plate substrate, a first sintered layer of spherical copper on the steel plate by the sintering technology, and then sintered in the copper layer a layer of the more 0.03mm The PTFE lubricant; wherein the intermediate layer of spherical copper primary role is to enhance the bonding strength between the steel plate with the PTFE, of course, in the work, also play a certain bearing and lubrication.

    The above description is not difficult to see that the plastic bearings and metal sliding bearings there are the following differences:

    1, plastic bearings overall lubricating materials, long life; metal sliding bearing lubrication layer PTFE surface 0.003mm, this thin layer of friction finish also declared the end of the service life;

    2, the use of plastic bearings will not happen rusting and corrosion resistance, the metal bearings easily rust can not be used in the chemical solution;

    3, plastic bearings quality lighter than the metal, which is more suitable for modern lightweight design trends;

    4, plastic bearings manufacturing costs compared to the metal lower; plastic bearings used in injection molding made more suitable for mass production;

    5, plastic bearings in operation without any noise, having certain vibration absorbing function;

    There are many advantages of plastic bearings than metal plain bearings, plastic bearings production is growing the the plastic bearing occasions are constantly extending, plastic bearings are used fitness equipment to office equipment as well as the automotive industry, the car is not on the road do not use plastic bearings. Plastic bearings market prospects is unlimited!