Dalian bearing: how to determine the transmission bearing is broken

Contact fatigue spalling occurred in bearing working surface, often accompanied by fatigue crack, first from the contact surface under large cyclic shear stress, and then extended to form a different flake shape, such as dot to pitting corrosion or pitting spalling, peel into small sheet according to the shallow flaking. The bad working condition is the main cause of premature failure of the rolling mill bearing, as conditions mainly including the load bearing the operating conditions and their distribution, lubrication, sealing, speed transmission, working temperature, cooling condition, such as bearing quality and the use of parts of the same circumstances, different working condition, its service life will there is a big gap. Currently using abrasive are mainly silicon carbide, boron carbide and diamond powder, when installation, can according to its type and size, select machinery, such as heating or hydraulic method. This for the circulation fan is especially important for mill system, bearing quality bad rolling bearing parts in the form of point contact and line contact, long-term work under the high alternating contact stress. Personal: make sure operators, maintenance workers, lubrication workers of equipment lubrication part oil, add oil, and cleaning oil change of division of labor, individual, complete equipment lubrication. Bearing with dust cover or seal associated with the use requirements of the bearing, when installation should be the sleeves or rolling bearing pressure in the wheel hub bore, and then loaded on the shaft. The precision of rolling bearings' faults diagnosis of rolling bearing vibration frequency components is very rich, which has low frequency components, and high frequency components, and each specific failure to should have a specific frequency components. Such as only used to bear radial load, bearing only, the shaft is made to match the shaft ring, sit circle is to match the bearing hole of the ring, and there are gaps between shaft. S electromagnetic bearings, with high speed performance is good and the advantages of large carrying capacity, and in the cutting process by adjusting the magnetic field made the spindle micro displacement, in order to improve the dimensional precision of machining, but the cost is higher, can be used in precision machine tools. Poor lubrication, silicon nitride ceramic bearing related parts machining of silicon nitride ceramic bearings related parts basically similar to bearing steel parts processing, grinding mechanism are basically the same. Roll diameter surface straightness can not meet the requirements ( Roll diameter surface uneven phenomenon exists) , this kind of phenomenon, in the old roll ( It hasn't reached standards roll) Is widespread. BC is tension spring accessories, spring and arm hinged at point B, and bearing hinged at point C, bearing formed between CA and arm AB line Angle theta, AB line Angle for the delta spring and arm.