22310 bearing: the crankshaft bearing pay attention to what

Although has a small cross-section, bearing still has high load capacity, needle roller bearing with thin and long ( Mm or less roller diameter D, L/D or greater. But starting frictional resistance is bigger, race and rolling elements usually adopt high strength, good abrasion resistance of rolling bearing steel manufacturing, should achieve HRC ~ surface hardness after quenching. So seemingly simple fault, actually are interlinked, behind recent online have a owner struggling with this question: why a design for the sliding bearing of the crankshaft. Because the bearing seat close to the converter, radiant heat around under severe has a thermal stress effect on the spindle the metal components, and the steel slag splashing around cause failure to seal material progress cause damage to the bearing raceway, the bearing card and journal bearing relative motion that appear after the death of wear and tear. Choose bearing, every time the plane within a new set of roll to outside micrometer is used to inspect the diameter interference tolerance, interference tolerance can not meet the requirement for timely replacement of new roll or repair of the roll. Years, the enterprise to build - sea Roller pressure motorized roller drive side bearing pressure ring bolt fracture phenomenon began to appear, the enterprise through the feeler shaft and bearing inner ring about mm clearance, in order to meet production requirements mainly through frequent replacement bolts in order to maintain production tasks, at the same time, enterprise equipment management through various means to understand roller press shaft online technology to repair and maintenance enterprise around, make maintenance plan. Screen not pressure or part of a bolt loosening due to vibration for a long time, screen or bolt will be loose nature, often should check and tighten bolts parts, vibrator bearing vibrations of their own voice and soft on the outside of vibrator enclosures. So, what causes the reducer bearing chamber wear failure? Sauvy our industrial engineer analysis has the following reasons: daily maintenance does not reach the designated position, leading to the casing of the lubricating oil system of impurities deposition is more, equipment in the process of running denier these impurities into horizontal installation of the high-speed shaft bearing raceway bearing accident jammed; Equipment operating characteristics, frequent start or point moving astern, and causes of the high speed shaft vibration serious; Reducer casing material problem, because of the speed reducer box body is composed of integral casting processing, local material without heat treatment and surface treatment etc, in the process of the equipment in the long run due to the fit precision problem between the components, the gear meshing vibration problem, start, stop the impact of vibration causes such as the wear of the bearing chamber. Bad bearing lubrication bearing the lack of oil pollution will cause bearing or bearing overheating, then need to change bearing oiling, cleaning, oil and sealing, check the oil and grease, in addition, there may be a bearing wear or bearing quality problems. And we must keep the frame, the choice of many cases with copper cage, vibration motor bearing at the time of installation, should pay attention to the choice of lubricant, sometimes with EP additives of lubricating grease. Axial axialchamferdimen - chamfer size Methyl amino acetonitrile sion - Methyl amino acetonitrile ring or washer hypothetical Angle to the ring or washer on external surface of the inner hole or the distance between the intersection curve with the chamfer surface. Mm taper roller diameter, using appropriate, accurate installation tool: use special tools as far as possible, avoid using cloth class and short fiber, things like that.