Heavy bearing applications must be combined with heavy bearing characteristics to consider. Bearing under the apron tension roller overloaded new spinning machine energy SKF Bearings often in the high-stress state, and the bearing is very sensitive to high stress, therefore, all aspects of the application technology should strive to slow the bearing stress, and stress mitigation is very conducive to extend the life of the bearing. For example, a high load machine under the conditions allowed by the axial position of the original single fulcrum bearing multiplier for two to bear radial load, while the impact of uneven load, under the same condition of the workpiece, the fulcrum two bearing life than the original single bearing case is expected to raise far more than twice. As a matter of fact, in the heavy machinery is often used in a pivot bearings or columns bearing radial load.
 
    1. Overloaded with clearance and lubrication of the bearing
 
    Heavy duty bearings with clearance and lubrication must be unified consideration.
 
    In order to slow down the load bearing stress, hope lubrication thick film made bearings and imported bearings of the old and the new code size parameters table ($ 4), are somewhat higher viscosity oil or high viscosity oil as the base oil of the grease, also wish to ensure good lubrication conditions, the frictional torque caused due to the lubricant viscosity is not too high.
 
    Load bearing rotating rings interference than ordinary bearing life as well as have an adverse impact on the raceway deformation, so may be the case, I hope appropriate to reduce the amount of interference, which requires lower mating surface roughness, while maintaining normal lubrication, lubrication in case of failure, under heavy roller Road surface is too large friction torque with the surface peristalsis trend of strengthening, even slipping phenomenon, although these phenomena occurred in the outer ring, - but serious The inner ring is also the inevitable. Actual outer ring with attention should not be too big a gap to avoid grease to penetrate the surface, to promote the occurrence of slippage, and the ferrule easily deformed, reducing the load zone of the bearing.
 
    Only prudent to take effective countermeasures, allow appropriate to reduce the heavy-duty bearings with interference, and the amount of interference, although a slight reduction, improvement of the bearing stress state is larger, thicker oil film, of course, the greater the benefit.
 
    Under heavy load bearing rolling surface contact area, with tight, pumped storage units close to the amount of joint NSK bearing shoe of high oil temperature processing ferrule and large deformation, usually bearing clearance made great.
 
 



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