The selection of  overloading SKF bearing  and high rigidity bearing  the selection of the same basic points.

The application of overloaded bearing , must be integrated with heavy bearing work characteristics to considerate. New spinning machine energy saving SKF bearing type tension roller bearing under heavy work is often high stress condition, and bearing of high stress is very sensitive, so the application of technology all links should be trying to slow the bearing stress, and the stress is very helpful in the extension of the slow bearing life. Such as high load machine in the axial position allows conditions, the use of a single bearing the double protection for two to bear radial load, and despite the influence of uneven loads, the workpiece in the same conditions, the protection of the two bearing life than the original single bearing, hopefully increase is far more than two times. In fact, the heavy machine is often in a fulcrum using multiple bearing or more bear radial load bearing.

1. Overloaded bearing, clearance and lubrication

Overloaded with bearing, clearance and lubrication must unification consideration.

In order to slow down the heavy bearing stress, hope of lubricant layer is thick with domestic bearing of the old and new code import bearings size parameters CRT (one hundred and forty), so the use of high viscosity tends to higher viscosity lubricating oil or grease of oil as the oil and wish to ensure good lubrication in conditions, due to lubricant viscosity of friction torque caused by not too high.

Bearing rotation of the collar with heavy interference than common situation is, and this is for the way deformation and rolling bearing life have adverse effects, so in May, under the situation of hope over surplus quantity reduced, the requirement with lower surface roughness, and keep the lubrication is normal, because the lubrication one thousand failure, an overloaded scroll down way too much to the surface friction torque with wriggle trend surface strengthening, appear even skid phenomenon, although these phenomenon occurs in case and-but serious when inner circle is unavoidable in. Outside of the actual with unfavorable excessive attention appear clearance, lest oil seeping into the surface, make skid happens, and make rings easy to deformation, reduce bearing load area.

Only in rigorous take effective measures, to allow reduced heavy bearing interference with and surplus quantity is fallen slightly, the improvement of the stress state of the bearing is bigger, of course, the benefits of thick oil film is more.

Due to the heavy rolling bearing surface large contact area, with tight, the pumped-storage unit joint NSK bearing tile temperature high oil temperature processing quantity and deformation rings close to larger, so usually bearing clearance also make great.

2. From the host design to improve the bearing using conditions

The host in the transmission chain of transmission shaft appropriate all take high speed, until the transmission to the spindle again fell to work speed, and for the installation of the spindle bearing parts also advised some bigger, easy to choose larger bearings, these are very favorable to bearing.



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