skf spherical bearings with the use of detection technology analysis

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SKF bearing is a precision mechanical bearing components, the spherical bearings users sincerely hope that the bearing can be installed on the host in a predetermined period of use without damage and to maintain its dynamic pe rformance, but the objective fact is sometimes not satisfactory, sudden bearing failure accident could cause significant losses.
Through a lot of SKF bearing failure analysis studies have shown that the spherical bearing short-lived or premature loss of accuracy, some due to defects in material or manufacturing improper, but to a large extent on the absence to be installed in strict accordance with the requirements of bearings maintenance or improper bearing selection or actual load exceeds the rated load of the bearing itself causes abnormal bearing damage, for example, fatigue spalling of the bearing parts is largely caused by lubricating oil mixed with impurities.
Detection, first SKF bearing cover is open, the choice of the appropriate diameter of the lead wire, cut into 15 to 40 mm long pieces on the journal on the upper and lower bearings at the interface, cover with bearing cap torque required to tighten the fixing bolts, then loosen the bolts, remove the be aring cap, detection of flattened lead wire with a micrometer thickness, calculated the average of the spherical bearing top clearance. If the tip clearance is too small, the binding surface in the upper and lower watt padded. If too large, less pad, scraping or re-poured watts.china roller bearing
Pad clamping force adjustment: in order to prevent rotation and axial movement of bearing pads may occur in the work process, in addition to fit interference and the stopper part, the pad must also with SKF Bearing cover to compression, the measurement method and the measuring headspace method , as to measure the thickness of soft galvanized wire, available calculated bush tightening force (represented by the amount of elastic deformation of the pad after compression)
General bearing the pressing force of 0.02 to 0.04 mm. Pressing force does not meet the standard, can be used to increase or decrease the outer spherical bearings and bea ring shim thickness at joints to adjust tile back allowed padded.
SKF bearings addition to ensure that the radial clearance, should also ensure that the axial clearance. Detection axial clearance, the axis is moved to an extreme position, and then use a feeler gauge or dial indicator measuring axis from one extreme position to the other extreme position runout ie axial gap.