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double row ball bearing - China Manufacturer
Thank you for inquiry my double row ball bearing, Tel : 0086-0379-64390888, E-mail: liuping@lyzyc.cc
http://www.lyzycbearing.com/key-double-row-angular-ball-bearing-6/
Lubrication on the fatigue life of rolling bearings and friction, wear, temperature, vibration, there is no normal lubrication, bearings will not work. Analysis of bearing dam age causes about 40% of the bearing damage and poor lubrication, so good lubrication of the bearing is an effective measure to reduce the bearing friction and wear. In addition, the bearing lubrication heat, rust, sealing, and ease the impact work to ensure that the lubricant can not be expired, the selection should correct harvester bearing lubrication oil lubrication and grease two large models of gear box oil lubrication choose to use GL-5 80W90 gear oil; the greased generally with molybdenum disulfide lithium grease, lubrication by twisting the device continuously variable transmission The lower part of the device must be the Mobil XHP222 or better grease lubrication.SKF bearing
Bearing failure of many reasons, in addition to normal fatigue spalling, like the failure of seals, too tight with the result of factors over small bearing clearance or poor lubrication can leave special traces of failure and failure modes, so check the failure of the bearing Most of the time can be found to lead to bearing failure because, in order to take timely countermeasures. In general, the bearing failure of 1/3 because the bearings to fatigue spalling of, is a normal failure; 1/3 lead to premature failure because of poor lubrication. 1/3 because of contaminants into the bearing or not installed correctly, and cause premature bearing failure. In general, the following seven common symptoms: bearing overheating, bearing not functioning properly, bearing noise, bearing life is too low, vibration reach the machine performance requirements, loose bearings in the shaft, shaft rotation difficult.roller thrust bearings
Reasons for the formation of seven symptoms: grease, lubricating oil, expired or selection error; grease too full or the oil level is too high; bearing clearance is too small; bearings inside the ho le is not round, bearing box distorted, the support surface uneven. bearing housing hole diameter is too small; contact oil seals over-locking of the surplus is too big or the spring is too tight; a shaft two fixed bearings, the bearing clearance is smaller axis expansion; adapter sleeve; bearing housing hole too large, the uneven; two or more bearing concentricity bad; the anti Songka coming into contact with the bearing; contact seal wear serious, causing the lubricant leak; the diameter of the shaft is too large. Cause serious bearing inner ring expansion, reducing the bearing clearance; material is too soft material of the box hole, after the force pore size, resulting in the outer box hole skid; oil level is too low, the lack of bearings inside the grease; debris, sand, carbon black or other contaminants from entering the bearing box; water, acid, paint or other contaminants into the bearing box; the bearings inside the debris and other debris is not cleaned before inst allation bearing; shaft diameter is too small, adapter sleeve lock is not enough; the role of slip (due to the rapid start) cause there are scratches on the rolling element; shaft shoulder size unreasonable resulting in bending axis; shaft shoulder friction bearings closures; shaft shoulder then in the bearings inside the Office area is too small resulting in the bearing outer ring distortions; distorted bearings closures; shaft and bearings within the set of distortions; shaft and bearing jacket distorted; incorrect installation, bearing a direct hit with a hammer; rotating parts in the machine and static contact ; contact with the seal wear is severe, leading to lubricant leakage; bearing clearance is too large resulting in shaft vibration.buy bearing
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