Generally, the working surface of plastic sliding bearing has self-lubricating function; generally, plastic sliding bearing is made of engineering plastics with better performance; generally, professional manufacturers have self-lubricating modification technology of engineering plastics, which can achieve certain performance by self-lubricating reinforcement modification of engineering plastics through fibers, special lubricants, glass beads, etc., and then use modified plastics The material is processed into self-lubricating plastic bearing by injection molding. Plastic sliding bearing has the following characteristics:

1. Plastic bearings are all lubricating materials with long service life;

2. The plastic bearing will not rust in use and is corrosion-resistant, while the metal bearing is easy to rust and cannot be used in chemical liquid;

3. The quality of plastic bearing is lighter than that of metal, which is more suitable for modern lightweight design trend;

4. The manufacturing cost of plastic bearing is lower than that of metal; plastic bearing is made by injection molding, which is more suitable for mass production;

5. The plastic bearing has no noise in operation and has certain vibration absorption function;

6. The plastic sliding bearing is suitable for high and low temperature operation - 200 to + 250 degrees;

The plastic linear bearing can be made into not only the shape of shaft sleeve, but also the plastic linear bearing, provided that the material must be self-lubricating to improve its comprehensive wear resistance; for example, the common plastic linear bearing in the market is made of materials modified by lubricating agent and reinforced fiber engineering plastics, with excellent wear resistance; because of the plastic Material sliding bearing has many advantages over metal sliding bearing. At present, the output of plastic bearing is expanding day by day, and the use occasions of plastic bearing are also expanding. Plastic bearing is used in everything from fitness equipment to office equipment and automobile industry. At present, there is no car running on the road without plastic bearing.