The plastic bearings currently used can be generally divided into plastic rolling bearings and plastic sliding bearings; the working principle of plastic rolling bearings and plastic sliding bearings can be distinguished by name. The friction generated when the plastic rolling bearing works is rolling friction, while the plastic sliding bearing works. The occurrence of sliding friction; the magnitude of the rolling friction depends mainly on the manufacturing precision; and the friction of the plastic sliding bearing depends mainly on the material of the sliding surface of the bearing.

Basic Information

CSB-EPB series plastic sliding bearing

Plastic sliding bearings generally have self-lubricating functions on the working surface; plastic sliding bearings are generally made of engineering plastics with better performance; more professional manufacturers generally have self-lubricating technology for engineering plastics, through fibers, special lubricants, Glass beads and other self-lubricating and modification of engineering plastics to achieve certain performance, and then processed into self-lubricating plastic bearings by injection molding with modified plastics. Currently, polymer plastic sliding bearings are widely used CSB-EPB. Series of plastic plain bearings.

CSB-EPB's most versatile plastic plain bearing

CSB-EPB14A high speed FDA compliant plastic plain bearing

CSB-EPB series plastic plain bearings have the following characteristics:

1. The plastic bearings are all lubricated materials and have a long service life;

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

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

4, plastic bearing manufacturing costs are lower than metal; plastic bearings are injection molding processing is more suitable for mass production;

5. The plastic bearing does not have any noise during operation and has a certain vibration absorption function;

6, plastic sliding bearings for high and low temperature work -200 ~ +250 degrees;

Plastic sliding bearings can be used not only in the shape of bushings, but also in plastic linear plain bearings, provided that the finished material must be self-lubricated to improve its overall wear resistance; for example, CSB- is common in the market today. LIN plastic linear bearings are made of lubricants and reinforced fiber modified engineering plastics, which have excellent wear resistance;

CSB-LIN series wear-resistant plastic linear plain bearings

Because plastic sliding bearings have many advantages over metal sliding bearings, the output of plastic bearings is expanding day by day, and the use of plastic bearings is constantly expanding. Plastic bearings are used from fitness equipment to office equipment and the automotive industry. Currently, cars driving on the road do not use plastic bearings.

POM plastic bearing, PP plastic bearing

POM and PA materials have good mechanical strength and wear resistance. They are suitable for making relatively precise plastic bearings. The working temperature ranges from -60 °C to 100 °C. The surface strength is high and smooth, and there is basically no tension. The self-lubricating is good. Performance and low coefficient of friction, based on the traditional advantages of plastic bearings, can be applied to precision and high speed operation. Among them, POM plastic bearing is the most widely used one of all plastic bearings. Generally, the inner and outer ball materials are POM or PA, and the cage is made of glass fiber reinforced nylon 66 (GRPA66-25). Balls are glass spheres, stainless steel spheres or ceramic spheres. These bearings perform well under alkaline conditions but are not suitable for operation in acidic corrosive environments.

characteristic:

1. High rigidity and high hardness, high impact strength even at low temperatures;

2. Excellent elasticity and good creep resistance;

3. High heat stability and very good dimensional stability;

4. Good sliding performance and wear resistance;

5. Physiologically inert, suitable for contact with food.

6. Not resistant to strong acids and strong oxidants, poor adhesion to paint

Main uses: mechanical and electrical equipment, fitness equipment, food machinery, furniture and decoration materials

HDPE, PP, UPE materials have been proven to be used in relatively weak acid-base cross-linking environments (30% Cucl2 solution and 30% NaoH solution tested OK) and are therefore suitable for most acids/alkali/salts/solvents/oil/gases and Sea water corrodes the environment. It has the characteristics of oil-free self-lubricating and anti-magnetic electrical insulation of general plastic bearings, but its mechanical strength is low and it is easy to deform. Therefore, such acid-resistant plastic bearings are not suitable for large loads and high speeds, in order to overcome such acid resistance. Disadvantages of alkali plastic bearings. In comparison, UPE materials have better strength, low friction characteristics and low temperature application characteristics (down to -150 ° C). Generally, the inner and outer rings are made of HDPE, PP or UPE, and the cage materials are HDPE, PP or UPE, the ball is a glass ball, a stainless steel ball or a ceramic ball. This comprehensive performance of acid and alkali bearings will be greatly improved.

characteristic:

1. Good corrosion resistance, resistant to various corrosive media and organic media within a certain temperature and concentration range

2. High mechanical strength, cutting can maintain high toughness at liquid nitrogen temperature (-196 ° C)

3. Good self-lubricating, high wear resistance

4. Strong anti-adhesion ability

5. Very low water absorption, excellent electrical insulation

6. Good resistance to high energy radiation

PTFE high temperature resistant and corrosion resistant plastic bearings

As an emerging engineering plastic material, PTFE and PI have proved to be plastic bearings with good mechanical strength dimensional stability and high temperature resistance in all known engineering plastics. The long-term use temperature of PTFE is 260 °C, and the long-term use temperature of PI is as high as possible. 300 ° C, and its excellent corrosion resistance, in the medium-strength acid-alkaline corrosion environment can still run freely, it is generally used for the production of outer ring material selected PTFE or PI, the ball is generally Zro2 or Si3N4 ceramic ball. Bearings that operate in harsh environments in harsh environments have the disadvantage of being expensive due to the inherent high cost of the material itself.

Prospects

At present, foreign plastic bearings are developing very fast and have a wide range of applications. Plastic bearings are still in their infancy in China, and they are relatively lacking in raw material production and product application. According to incomplete statistics from relevant parties, in the past five years, the domestic five major engineering plastics such as polycarbonate, polyoxymethylene, polyamide, thermoplastic resin and modified polyphenylene ether have maintained a rapid growth rate of 30.3%. Engineering plastics for plastic bearings mainly rely on imports. In recent years, engineering plastic products have gained wider and wider applications with their excellent properties. Engineering plastics have broad application prospects in bearings, and plastic bearings are being welcomed by more and more users. Because engineering plastics have excellent self-lubricating properties, wear resistance, low friction and special seizure resistance, they work well even in poor lubrication conditions, so they are ideal for use as bearing materials. Therefore, for the relevant plastics enterprises, the market prospects are very huge by seizing market opportunities and developing related plastic bearing products.