What is a special bearing?

Stainless steel bearings (high temperature bearings) Compared with ordinary bearings, stainless steel bearings not only have obvious advantages in material, but also in terms of process and precision control, they are much stricter than ordinary bearings. During the working process, the stainless steel bearing has stable operation, low noise, corrosion resistance and wide application.

Material: AISI SUS440C stainless steel is used for bearing ring and rolling element material, which has been vacuum quenched and tempered. The cage and sealing ring skeleton material is made of AISI304 stainless steel. Performance: Compared with ordinary bearing steel, stainless steel bearings have stronger anti-rust and anti-corrosion properties. Choose suitable lubricants, dust caps, etc., and can be used in the environment of -60℃～+300℃. Stainless steel bearings have high mechanical strength and large load capacity. Scope of use: widely used in food processing, medical equipment, pharmaceutical machinery. Ceramic Bearings (Corrosion Resistant) Ceramic bearings, as an important mechanical basic component, are leading the world in new materials due to their excellent performance, high temperature resistance, super strength, etc., which are unmatched by metal bearings. In the past ten years, it has been widely used in various fields of national economy and people's livelihood.

Material: Silicon Nitride, Zirconia, Silicon Carbide, Alumina Properties: ① High Speed: It has the advantages of cold resistance, small force elasticity, high pressure resistance, poor thermal conductivity, light weight, and small friction coefficient, and can be used at 12,000 rpm In high-speed spindles and other high-precision equipment with a speed of 75,000 rpm to 75,000 rpm; ② High temperature resistance: The material itself has a high temperature resistance of 1200, and is self-lubricating. It can be used in high temperature equipment such as furnaces, plastic making and steel making; ③ Corrosion resistance: The material itself has the characteristics of corrosion resistance, and can be used in strong acid, strong alkali, inorganic, organic salt, seawater and other fields, such as: electroplating equipment, Electronic equipment, chemical machinery, shipbuilding, medical equipment, etc. ④ Anti-magnetic: Because there is no magnetism and no dust absorption, it can reduce the bearing peeling off in advance and the noise. Can be used in demagnetization equipment. Precision instruments and other fields. ⑤ Electrical insulation: Due to the high electrical resistance, it can avoid arc damage to the bearing, and can be used in various electrical equipment requiring insulation. ⑥ Vacuum: Due to the unique oil-free self-lubricating properties of ceramic materials, in ultra-high vacuum environment, silicon nitride full-ceramic bearings can overcome the problem that ordinary bearings cannot achieve lubrication. Scope of application: It is used for special purposes of high temperature resistance, corrosion resistance, wear resistance and high voltage resistance in industries such as electronics, machinery, chemical industry, metallurgy, textile, and electric power.

Plastic bearings Plastic sliding bearings generally have self-lubricating function; plastic sliding bearings are generally made of engineering plastics with better performance; more professional manufacturers generally have engineering plastics self-lubricating modification technology, through fiber, special lubrication The self-lubricating enhancement and modification of engineering plastics are carried out to achieve a certain performance, and then the modified plastics are processed into self-lubricating plastic bearings through injection molding. Material: Engineering plastics (high temperature resistant plastics, acid and alkali resistant plastics, corrosion resistant plastics and precision plastics) Properties: Engineering plastics have the characteristics of excellent self-lubrication, wear resistance, low friction and special seizure resistance, even in lubricated conditions It can also work normally under bad conditions, and it is a very ideal bearing material.

Plastic bearings do not corrode and have better vibration damping than metal bearings. Under the high temperature conditions of the electroplating process, the bearing can be recalibrated to achieve the best sealing requirements; ①High temperature resistant plastic: It can be used in the environment of long-term temperature of 290℃, and the short-term temperature resistance can reach 350; ②Acid and alkali resistant plastic: The material has been proved to be able to be used in relatively weak acid-base crossover environment (30% CuCl2 solution and 30% NaOH solution test OK), strong acid and strong alkali environment; ③ Precision plastic bearing: the precision and tolerance are better than traditional plastic bearings Improve. The inner and outer rings, rolling elements and cages are made of materials suitable for precision machining as a whole. On the basis of maintaining the traditional advantages of plastic bearings, they can be used in precision and high-speed operating conditions.

Generally, the inner and outer rings are made of POM, PPS, or PEEK, the cage is made of glass fiber reinforced nylon 66 (RPA66-25), or PEEK, and the rolling elements are glass balls, stainless steel balls or ceramic balls. Scope of use: mechanical and electrical equipment, fitness equipment, furniture and decoration building materials, food machinery.