Self-lubricating bearing - bearing knowledge

Self-lubricating bearing surface in the processing and molding plastic layer can be sure the allowance of stay, device for processing after the seat hole, in order to achieve better set size. Self-lubricating bearings use effect is good and sliding bearing what factors? We are selecting a self-lubricating bearing to watch it all three purposes of qualified. A, hardness, hardness is one of the key principle of circle, bearing quality, the contact fatigue strength, wear resistance, elastic limit self-lubricating bearings have indirect effect. Self-lubricating bearings under the usage of hardness, the individual to achieve HRC61 ~ 65, high hardness can make the bearings have higher contact fatigue strength and wear resistance. Solid inlaid self-lubricating bearing profile: metal Mosaic solid self-lubricating bearing ( JDB) Is a combined metal bearing characteristics and self-lubricating bearing characteristics of novel lubricated bearing, by load matrix, and the special formula of solid lubricating materials lubrication. It has high bearing capacity, impact resistance, high temperature resistant, self-lubricating ability etc. , especially suitable for overloading, low-speed, reciprocating or swing, difficult to lubrication and oil film formation, not afraid of the water and other acid erosion and erosion. Tear open come down to the bearing cleaning, rough washing and fine washing, respectively in the container, put a metal mesh bottom first, make the bearing is not direct contact with dirt from the container. Coarse when cleaning, if to spin bearing with dirt, can damage the bearing rolling surface, should be pay attention to. In coarse clean oil, use a brush to remove grease, adhesive, after clean, roughly into fine cleaning). Fine cleaning, bearing side rotation in the cleaning of oil, while carefully cleaned. In addition, the clean oil is always kept clean. Users generally reflect not only fuel-efficient inlaid bearing, energy conservation, and its working life is longer than ordinary sliding bearing. The use of self lubricating bearing, has been widely used in metallurgical continuous casting machine, rolling just equipment, mining machinery, shipping, steam turbine, water turbine, injection molding machine and equipment in the production line. Most of the bearing, using JIS SUJ2 steel grade. Use SUJ3 large bearing. The chemical composition of SUJ2, around the world, as the sliding bearing materials has been normalized. For example: with AISL52100 ( The United States) DIN100Cr6 ( West Germany) BS535A99 ( The UK) All belong to the same steel. Sliding bearing device at startup, the friction coefficient is very large, after running, lower friction coefficient, but in a certain range change is relatively small, the size of the change relative to the pressure effect on the friction coefficient is large, so in cement kiln fever often in the way of kiln speed reduction, although have effect, but most can not change the fate of the fever, it is for this reason. Need to further impact resistance, as a bearing material using nickel chrome steel, chrome molybdenum steel, chrome molybdenum steel, adopt carbon quenching, make the steel from the surface to the appropriate depth has a soft layer. Is something wrong with it, in fact, the friction coefficient is increased with the increase of the pressure per unit area, once the coefficient of friction, the friction heat will increase, once the fever to send out quantity of heat is greater than the heat of friction, balance broken, bearing heating. With proper softening depth, fine structure, comply with the hardness of the hardness of surface and the core permeability coal bearing, than using the bearing steel bearing has excellent resistance to impact, the chemical composition of individual permeability coal bearing steel. Self-lubricating bearings in the application of principle 1, oil free or less oil lubrication, apply to cannot go or it's hard to go places, but when use less maintenance and maintenance. 2, wear-resisting performance is good, small friction coefficient, long service life. 3, have the right amount of elastic-plastic, stress distribution in a relatively wide contact surface, improve the bearing capacity. 4, the static friction coefficient, can eliminate the crawling under low speed, so as to ensure the accuracy of the mechanical work. Early to open the packing before use will cause the internal pollution, at the same time, the work environment is considered in the process of resettlement, etc will cause the pollution of oil bearing. Without oil bearing is a kind of both metal bearing characteristics and innovative oil-free lubrication characteristics of bearing lubrication bearing, by load matrix, and the special formula of solid lubricating materials of lubricating effect. Widely used in metallurgical continuous casting machine, rolling just equipment, mining machinery, shipping, steam turbine, water turbine, injection molding machine and equipment in the production line. Why, then, oil-free bearings are widely used? The following a to know! Oilless bearing advantages as is known to all, all the smooth running of the machine must use some kind of bearing. 5, can reduce mechanical vibration, reduce noise, to prevent pollution, improve working conditions. 6, transfer film formation during the operation process, have the effect of protection of grinding axis, no bite shaft phenomenon. 7, low hardness requirements for grinding axis, conditioning treatment without shaft can be used, which reduces the processing difficulty of related parts. 8, thin-walled structure, light quality, can reduce the mechanical volume. On the back nine, steel can be plating a variety of metal, can be used in the corrosive medium. Currently has been widely applied to various mechanical sliding parts, others in order to improve the flexibility of sliding bearing sphere, the sphere of tile and tile seat contact area shrinkage of small, especially the middle groove sphere tile, only a tiny part of the contact, both sides of the groove, the friction will soar, does not favor the sphere of activity. For example: printing presses, textile machines, tobacco machinery, micro-motor, automobiles, motorcycles and forestry machinery and so on.