bearingtypes's blog

Sintered bronze washer disc,oilite thrust washer characteristics Self-lubricating bearings is one of our company's main products, has the following five characteristics: 1, no additional oil supply device; Second, reduce the operating costs of bearings; Third, to reduce equipment downtime; Fourth, simplify the design and mechanical structure; 5,Hydraulic Seal Series no waste oil treatment, is conducive to environmental protection.
Marginal lubricating bushing on the requirements of grinding parts Solid self-lubricating bearings are mainly JDB-1, SF-1, FB09G, and other series of bearings, in the initial stage of the work gradually through the wear and tear self-lubricating material gradually transferred to the grinding surface of the workpiece surface formed in the hard lubricating film; Its friction and wear properties mainly rely on the performance of solid lubricants, self-lubricating bearings face material is usually copper alloy, aluminum alloy - bimetal, babbitt, PTFE, modified polyoxymethylene, rubber, Molybdenum disulfide, black lead and the like. Which can form a solid lubricating film on the surface of the solid self-lubricating bearing to separate the moving sub-surface, the sliding frictional force can be greatly reduced, and the wear of the shaft can be avoided. Solid self-lubricating bearings and shaft sliding friction occurs,Filled and Modified Fluoroplastic Series and the shaft in the process of running to transmit torque and movement, so the hardness of the shaft material and strength requirements are higher, JDB-1 self-lubricating bearings commonly used metal to wear parts, hardness HRC40 °;DU-F flanged bushing SF-1 bushing is lower, the use of the general 45 # steel can also be. For the friction and wear properties of solid lubricants mainly rely on the performance of solid self-lubricating bearing bearing capacity, high precision rotary, solid lubricating film with impact resistance. The solid lubricating film is solid self-lubricating bearing surface material itself has good self-lubricating properties, in the initial stage of the work gradually through the wear and tear self-lubricating material gradually transferred to the grinding surface of the workpiece surface formed in the hard lubricating film; This is the roughness of the grinding surface of the workpiece have certain requirements, the general requirements of Ra0.4 ~ 1.6 between; too smooth or too rough surface is not conducive to the transfer of lubricant to the work surface hindered the completion of the lubrication film; Solid lubricating bearings are generally required to be grinding the surface to the polished surface; when the solid lubricant film is fully formed, the movement between the shaft and the bearing has actually changed into a friction between the lubricating film and the bearing movement,Oil Sintered Iron Bushing is not directly practical In contact with the bearing surface.
What is the role of Nylon Ball transfer unit, POM Ball,Nylon Ball,Plastic Transfer Ball Unit? As we all know, the bearing is fixed in the mechanical transmission process and reduce the load friction coefficient of the components. So what is a plain bearing? Let Xiaobian let us explain what is a sliding bearing. A sliding bearing is a bearing that works under sliding friction. Sliding bearing work smoothly, reliable, no noise. In the case of liquid lubrication, the sliding surface is separated by the lubricating oil without direct contact, but also can greatly reduce the friction loss and surface wear, oil film also has a certain vibration absorption capacity. But the starting frictional resistance is larger. Bearing part of the shaft bearing is called the journal, matching parts with the journal called the bearing pad. The friction-reducing material layer cast on its inner surface in order to improve the frictional properties of the pad surface is called a bearing liner. Bearings and bearing lining material collectively referred to as sliding bearing material. Sliding bearing applications are generally in the low-speed heavy-duty conditions, or maintenance and filling lubricating oil difficult operating parts. China is the world's earlier invention of the rolling bearing one of the countries in Chinese ancient books, axle bearing on the structure has long been documented. From the archaeological heritage and information, China's oldest bearing with a modern prototype of the structure of rolling bearings, appeared in BC 221 ~ 207 (Qin Dynasty) in Yongji County, Shanxi Province Xuejia cliff village. After the founding of new China, especially since the seventies of last century, the reform and opening up a strong impetus, the bearing industry has entered a new period of rapid development of high quality. At the end of the seventeenth Century, the United Kingdom C. Valuo design and manufacture of ball bearings, and installed in the post-trial and the British P. Woosi ball bearing patent. The late 18th century German H.R. Hertz published on the ball Steel+Nylon BTU bearing contact stress of the paper. Based on the achievements of Hertz, R. Streibeck of Germany and A. Pamgren of Sweden carried out a lot of experiments and contributed to the development of the design theory and fatigue life calculation of rolling bearings. Subsequently, N.P. Petrov of Russia used the Newtonian viscosity law to calculate the bearing friction. Reynolds of the United Kingdom on the discovery of Thor mathematical analysis, derivation of the Reynolds equation, since the fluid dynamic lubrication theory laid the foundation. Early linear motion bearing form, is a row in the skidboard placed under a row of wood. This technique may be traced back to the construction of the Great Pyramid of Giza, although there is no clear evidence. Modern linear motion bearings use the same principle of work, but sometimes the ball instead of roller. The earliest sliding and rolling element bearings are made of wood. Ceramics, sapphire or glass are also used, and steel, copper, other metals, plastics (such as nylon, bakelite, teflon and UHMWPE) are commonly used. Its role in terms of support, that is,Cloth-reinforced Phenolic Resin Series literal interpretation of the bearing axis, but this is only part of its role in supporting its essence is able to bear the radial load. It is also understood that it is used to fix the shaft. The axis is fixed so that it can only rotate, and control its axial and radial movement. The consequences of a motor without bearings are simply not working at all. Because the axis may move in any direction, and the motor is required to work only when the shaft for rotation. In theory, it is impossible to achieve the role of transmission, not only that, the bearings will also affect the transmission, in order to reduce the impact of high-speed shaft bearings must achieve good lubrication, and some of the bearing itself has lubrication, called pre-lubricating bearings Most of the bearings must have oil, load at high speed, due to friction will not only increase the energy consumption, more frightening is very easy to damage the bearing. The sliding friction into rolling friction argument is one-sided, because there is something called Metal mesh with PTFE bushing,strip.
Knowledge of PRMF 353935 bushing impregnation Is a porous material as the matrix, impregnated with solid lubricant, composed of solid lubricating impregnated composite bearings, stored in the interior of the solid lubricants bearing wear along with the friction surface to the supply of solid lubricants. Typical composite bearing is carbon graphite as the matrix material, impregnated with soft metal, PTFE or inorganic composition. The impregnation is carried out by immersing the impregnated material in a molten state. 2. A hardening liquid is used as the carrier, and the impregnated substance is immersed therein. 3. Using a volatile liquid as a carrier, the impregnation is dispersed therein for impregnation, and then the liquid is volatilized. 4. The impregnation is vaporized and impregnated. The impregnant not only acts as a lubricant, but also increases the strength of the matrix material. (SF-1) is a kind of both the characteristics of fabric phenolic series and non-oil lubricated bearings bearing the characteristics of the novel, bearing the load from the metal matrix, in particular, is a kind of self-lubricating bearings, non-oil bearing, Formulation of the solid lubricating material from the role of lubrication. It has the characteristics of high load-bearing capacity, impact resistance, high temperature resistance and self-lubricating ability. It is especially suitable for occasions such as heavy load, low speed, reciprocating or swinging, etc., and it is not afraid of the erosion of water and other acid. And erosion. Users generally reflect the inlaid bearing is not only fuel-efficient, energy saving, and its working life than ordinary sliding bearings. At present products have been widely used in metallurgical caster, rolling just equipment, mining machinery, ships, steam turbines,BK090F 3535 bushing water turbines, injection molding machines and equipment production lines.
Metal sliding bearing is currently the most used three-layer composite bearings, such bearings are generally based on carbon steel plate for the substrate, sintering technology in the first sintered steel plate on a layer of spherical copper powder, and then sintered in the copper layer on the layer 0.03mm of PTFE lubricant; the middle layer of spherical copper powder is the main role is to enhance the bonding strength between steel and PTFE, of course, at work also play a certain bearing and lubrication; global professional manufacturer of the United States GGB company, Japan's OILES company and China's CSB company; in recent years also in the world of sliding bearing manufacturing base also emerged a number of outstanding small and medium enterprises, large enterprises comprehensive strength, small and medium enterprises are to subdivision direction, such as Three and oil-lubricated bearings specializing in the development of the valve type stainless steel plain bearings, Kaisheng sliding bearing specializes in the development of mold industry accessories, excellent Ken bearing the development of injection molding machines and other accessories, with the sliding bearing industry, industry segmentation more and more obvious, Enterprises have gradually shortened the gap with large enterprises. Through the above description is not difficult to see, Steel+Nylon BTU bushing and metal sliding bearing the following differences: 1,plastic bearings are the overall lubrication material, long service life;Filled and Modified Fluoroplastic Series and metal sliding bearing lubrication layer is only 0.003mm of the surface of the PTFE, when this thin layer of friction also declared the end of life; 2, plastic bearings 3, the plastic bearing quality than metal light, which is more suitable for modern lightweight design trends; 4, plastic bearings (1), the use of plastic bearings, the use of plastic bearings can not be used in the chemical liquid; 5, plastic bearings in the operation without any noise, has a certain vibration absorption function; as a result of plastic bearings than the metal type of sliding bearing the existence of more than one-way bearing, plastic bearings, plastic bearings, plastic bearings, Many advantages, the production of plastic bearings are growing, the use of plastic bearings are also constantly extending the occasion, from fitness equipment to the office equipment and the automotive industry, and so are using plastic bearings on the road driving the car without plastic Bearing.CY-8H model ball transfer unit,3kg load capacity ,8mm carbon steel ball market prospects unlimited broad!
BTU Light Duty bushing and metal sliding bearing difference: The sliding friction is mainly caused by the manufacturing precision. The friction force of the sliding bearing mainly depends on the material of the sliding surface of the bearing. Plain bearings are generally self-lubricating surface; sliding bearings in accordance with the material is divided into non-metallic sliding bearings and metal sliding bearings. Non-metallic plain bearings are mainly plastic bearings, plastic bearings are generally better performance of the engineering plastics; relatively professional manufacturers generally have engineering plastics self-lubricating modification technology, through the fiber, special lubricants, glass beads And so on the plastic self-lubricating enhance the modification to achieve a certain degree of performance, and then use modified plastic processing by injection into the self-lubricating plastic bearings,Nylon model Ball transfer unit, POM Ball,Nylon Ball,Plastic Transfer Ball Unit, the world's more professional manufacturers IGUS Germany and China CSB companies.
Of course, in order to determine the most suitable amount of grease filled,Hydraulic Seal Series and sometimes have to think about other elements. For example, for some open bearings operating in dusty or very wet or even touching steam environments, it is possible to fill a number of greases in order to have a very good sealing condition to protect the BTU for heavy duty bushing from dust or moisture Invasion.
Self-lubricating bearing grease in the add time to pay attention to what BPW copper bearing bushing grease has excellent adhesion, abrasion resistance, temperature resistance, rust and lubrication, to improve the bearing high-temperature oxidation resistance, delay aging, can dissolve carbon deposits to avoid metal debris and oil Of the gather, improve the mechanical wear, pressure and corrosion resistance. But after a survey of grease in the bearing summary of the movement of the process, we noticed: the grease in the bearing should not be too much. Grease addition to not only ruin, and the role Destructive Enthusiasm. In the practice of bearing the job, if too much grease, then the higher the speed, the greater the harm, the more filled with the greater the conflict torque. In the same filling conditions, the sealed bearing of the conflict torque than the open bearing to be large. When the grease filling amount is equal to 60% of the bearing internal space volume, the friction torque is no longer significantly increased in the future, because most of the grease in the open bearing has been extruded, and the lubrication in the sealed bearing Fat has also been the reason for the loss. With the increase in the amount of grease filled, bearing temperature rise linearly, the same filling volume,BTU for medium duty bushing sealed bearing temperature rise is higher than the open bearing. It is generally believed that the sealed roller bearing grease filling, the maximum shall not exceed 50% of the internal space, ball bearings to 20% to 30% most suitable.
BTU model ball transfer unit-light duty technical characteristics The self-lubricating bearing is transferred to the friction surface by rubbing, the solid lubricant in the hole or the groove, and the solid transfer film is formed on the friction surface with good lubrication,25/28/35x15 WF-WB800 bushing strong adhesion and even coverage, thus greatly reducing the friction and wear. With the friction, the embedded solid lubricants continue to provide the friction surface, to ensure long-term operation of the friction pair of good lubrication. Mosaic self-lubricating bearings used in composite materials is a new anti-extreme pressure solid lubricating materials, metal substrates and embedded in the substrate hole or groove in the spherical iron sintered bearing paste composition. In the friction process of the metal substrate to bear most of the load.
Sliding bearing common main failure The main failure of CY-25A ball transfer unit,25kg load capacity ,25mm carbon steel: 1, tile surface corrosion: spectral analysis found that the abnormal concentration of non-ferrous metals; bearing bearing the emergence of many non-ferrous metals submicron wear particles; lubricants excessive moisture, acid value exceeded. 2, journal surface corrosion: spectral analysis found abnormal concentration of iron elements, bearing bearing many sub-micron particles of iron particles, lubricants, water or acid exceeding the standard exceeded. 3, tile surface peeling: FR soft strip bushing are found in many large-scale fatigue peeling alloy wear particles, lamellar abrasive. 4, tile back fretting: spectral analysis found that abnormal iron concentration, there are many sub-micron bearing iron particles wear particles, lubricants, water and acid value anomalies. 5, bearing surface strain: bearing found in cutting abrasive, abrasive grain composition of non-ferrous metals. 6, the surface of the shaft neck injury: bearing iron cutting grain or black oxide particles, metal surface tempering color. 7, Hydraulic Seal Series burning tile: bearing more large size of the alloy wear particles and black metal oxides.
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