Currently used bearings can generally be divided into rolling bearings and plain bearings; rolling bearings and plain bearings working principle Oil-free self-lubricating composite bearings can be distinguished by name, rolling friction bearing friction is work, while the sliding bearing work What happens is the sliding friction; the size of the rolling friction mainly depends on the manufacturing precision; and the size of the friction of the sliding bearing mainly depends on the material of the sliding surface of the bearing. Slide bearing general work PTFE soft bearing surface with self-lubricating function; sliding bearings in accordance with the material is divided into non-metallic plain bearings and metal sliding bearings;

At present, non-metallic plain bearings mainly plastic bearings, plastic bearings are generally made of relatively good performance engineering plastics; more professional manufacturers generally have engineering plastics self-lubricating modification technology, through the fiber, special lubricants, glass Beads and so on the engineering plastic self-lubricating thrust washer self-lubricating enhanced modification to achieve a certain performance, and then re-use of modified plastic processed into self-lubricating plastic bearings.

Metal sliding bearing is the most commonly used three-layer composite bearing, this bearing is generally based on carbon steel substrate, sintering technology by sintering a layer of spherical copper powder on the plate, and then sintering a layer of copper powder layer 0.03mm PTFE lubricant; the middle layer of spherical copper powder is the main role is to enhance the bonding strength between the steel and PTFE, of course, also play a role in the work load and lubrication.

It is not difficult to see through the above description, there are the following differences between plastic bearings and metal sliding bearings:

1, the plastic bearings are lubricated material as a whole, long service life; and metal sliding bearing lubrication layer is only 0.003mm surface of PTFE, when this thin layer of friction also declared the end of life;

2, the use of plastic bearings will not occur rust and corrosion-resistant, and metal-based bearings can not be used for chemical rust rust;

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

4, plastic bearing manufacturing costs lower than the metal; plastic bearings are used by the injection molding process more suitable for mass production;

5, plastic bearings in the operation without any noise, with a certain vibration absorption function;

As the plastic bearing metal sliding bearing there are many advantages, the current plastic bearing production is expanding, the use of plastic bearings are also constantly extending the occasion, from fitness equipment to office equipment and the automotive industry, etc. are used plastic bearings, The cars currently on the road do not use plastic bearings. Plastic bearings unlimited market prospects!