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While the institution is operating，The part where the bearing is installed is allowed to have a certain temperature，When touching the body shell with the hand，It should be normal not to feel hot，Otherwise, it indicates thatFAGHigh bearing temperature。
This paper introduces the simple diagnosis and precision diagnosis of imported bearings for rolling locomotives，Examples of detection are given
In order to maintain good lubrication conditions and normal working environment for bearings，Give full play to the bearing performance，Extend service life，The rolling bearing must have a suitable seal，To prevent leakage of lubricants and dust、Intrusion of moisture or other filth。
Precision bearing
In order to maintain the original performance of cylindrical roller bearings in good condition for as long as possible，Must be maintained、overhaul、To prevent accidents before they happen，Ensure the reliability of operation，Increase productivity、economy。
FAGBearing type and applicable accuracy class
In order to makeFAGLarge compressive stress remains on the surface of bearing parts after quenching and tempering，An atmosphere of carburizing or nitriding can be used during quenching heating，Perform short periods of surface carburizing or nitriding。
Lubrication technology:Lubrication summary of guide rail：Guide rail machine tool support guide component certain track accurate movement clamping positioning function Track track accuracy Moving accuracy directly affects the machining accuracy of machine tool Currently applied guide rail Sliding guide rail rolling guide rail static guide rail section shape main rectangular dovetail cylindrical plane Common guide material cast iron Mosaic coated cast iron plastic composite material1.Guideway lubricant action Liquid dynamic and static bearing commonly used shaft housing with shaft
When the bearing bore diameter is greater than70mm，Or when the interference is large，The bearing hole is expanded by heating method，This saves time and effort，Also avoid damage caused by excessive force。
Due to the precision of the precision bearing itself1μmwithin，Therefore, it is required to match the machine(shaft、Bearing block、End cover、retainer)High dimensional accuracy and shape accuracy，In particular, the accuracy of the mating surface should be controlled within the same level as the bearing，This is crucial，And the easiest to ignore。
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