The choice of oilless self-lubrication FAG bearing

In order to solve the mechanical equipment in high temperature, low speed, large overload, dust, water shower and have impact vibration lubrication problem, choose oilless self-lubrication FAG bearings. 1, FAG bearing structure of self-lubricating FAG bearing is developed in FAG bearing substrate metal friction surface pores, orderly arrangement of the appropriate size and embedded mos2 and graphite etc made from composite self-lubricating block set on the metal sleeve, compound FAG bearing, made of solid lubricant friction area of 25-65%. Solid self-lubricating block can work normally under the high temperature of 280 ℃. But due to its low mechanical strength, bearing capacity is weak, easy to deformation, it is embedded in the metal hole groove can inhibit the shortcomings, to form the metal parts load-bearing role, self-lubricating block lubrication. The self-lubricating FAG bearing lubrication mechanism is in the process of shaft and the set of sliding friction, part of the self-lubricating materials transferred to the axis of the metal surface, fill tiny is not flat, and formed a relatively stable layer of solid lubricating film, solid lubrication film between the grinding, prevent shaft and set of adhesive wear. The rationality of the combination of a combination of copper alloy and non-metallic antifriction materials of their complementary advantages, particularly suited to oil-free, high temperature, high load, low speed, anti-fouling, corrosion resistant, strong radiation in the environment movement, and in the water or other solution infiltration and cannot add grease used under special working conditions. 2, self-lubricating block size than the self-lubricating block accounts for much of the surface of related to the intensity of the running speed, pressure, speed is low; Pressure strength, metal thrown some of area. Such as catch ingot tractor road wheel FAG bearing self-lubricating block covers an area of about 25%, of the pull mechanism shaft FAG bearing lubrication to fully, bearing strength is not big, self-lubricating block area of about 65%. 3, transform materials technical requirements of the bushing should choose copper alloy manufacture, bushing should have high hardness, generally must be heat treatment, the hardness is not lower than HRC45. 4, self-lubricating block geometry and set requirements. Self-lubricating block shape is cylindrical and rectangular, self-lubrication can be used according to the size of bar, vice can use rectangle. No matter what the shape must be set firmly to prevent fall off in the running. 5, fitting clearance of bushing and the axis of self-lubricating block linear expansion coefficient is about 10 times that of the steel. In order to adapt to FAG bearing temperature change, the clearance between the shaft and bushing from metal pieces of four grades ( D4 / DC4) 0. 032-0. 15 mm, increase of 0. 45 ~ 0. 5MM。 Self-lubricating block at the side of the friction pair is prominent bushing metal 0. 2 to 0. 4MM。 This will in FAG bearing fully lubrication for the initial period of operation, reduce power drag power consumption. 6, the advantages of the oilless self-lubrication FAG bearing, oil free, or A little oil lubrication, apply to cannot go or it's hard to go places, can be used in less maintenance and maintenance; B, wear-resisting performance is good, small friction coefficient, long service life. C, have the right amount of elastic-plastic, can the stress distribution in the wide contact surface, improve the bearing capacity of FAG bearings; D, the static friction coefficient, can eliminate the crawling under low speed, so as to ensure the accuracy of the mechanical work; E, can reduce mechanical vibration, reduce noise, to prevent pollution, improve the working conditions; F, transfer film formation during the operation process, have the effect of protection of grinding axis, no bite shaft phenomenon; G, low for shaft grinding hardness requirements, without the shaft can be used as reducing the related parts processing difficulty; H, thin-walled structure, light quality, can reduce the mechanical volume; I, liner is made of brass, and can be used in the corrosive medium. Through the practice of some aluminum enterprise casting machine oilless self-lubrication FAG bearing FAG bearing, has used 15 months in a row, and also in the running, the clearance between the shaft and bushing is generally less than 1 mm, 12 months, is expected to also can be used to significantly more than the original service life ( 2 months) 。 Oilless self-lubrication FAG bearing not only can been used in aluminum ingot casting machine is better, and can be adapted to the oil-free, high temperature, high load, low speed, anti-fouling, corrosion resistant, strong radiation in the environment movement, and in the water or other solution infiltration and cannot add grease under special working conditions of equipment, such a FAG bearing has wide popularization value. Currently used various machinery industry is the most FAG bearings or ball bearing, needle and so on, but a small number of self-lubricating FAG bearings has been adopted, believe in the near from lubrication FAG bearing FAG bearing has become the dominant. The application of the following is a part of self lubricating FAG bearing characteristics and advantages: 1, the lubrication oil free or less, apply to cannot go or it's hard to go places, can be used in 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 of bearing FAG import; 4, the static friction coefficient, can eliminate the crawling under low speed, so as to ensure the accuracy of the mechanical work; 5, can reduce mechanical vibration, reduce noise, to prevent pollution, improve the 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, reducing the related parts processing difficulty; 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. At present has been widely used in various mechanical sliding parts, such as: printing machines, textile machines, tobacco machinery, micro-motor, automobiles, motorcycles and forestry machinery and so on.