In fact, FAG bearings in heavy bearing selection point, is the high rigidity of the bearing and FAG bearing essentially the same selection points.
FAG Bearings in the application of heavy bearing, heavy duty bearings must be combined with work characteristics to consider. Often overloaded at work bearing high stress state, while the bearing is very sensitive to high stress, so that all aspects of application technology should strive to reduce the bearing stress, and stress mitigation is very beneficial to extend bearing life. Such as high load in the axial position of the machine under the conditions allowed, the original use of a double pivot bearing for the two single radial load to bear, and despite the impact of load imbalance, under the same conditions of the work piece, the fulcrum bearing life of two single bearings than the original case, is expected to increase much more than twice. In fact, often in heavy machinery on a pivot bearing with multiple columns or bearing radial load to bear.
1. FAG bearings with heavy, heavy import clearance and bearings with lubrication, clearance and lubrication must be unified into account. In order to reduce the stress of bearing heavy, thick film lubrication hope so biased towards the use of higher viscosity or higher viscosity lubricant oil as the base oil, grease, also want to ensure good lubrication conditions , due to the lubricant viscosity caused by the friction torque should not be too high.
Heavy duty bearings with rotating rings than normal conditions over a large surplus, which is the deformation of the roller bearing life as well as have an adverse impact, so the case may be, want to appropriately reduce the amount of interference, which requires lower surface with roughness, while maintaining normal lubrication, because if lubrication failure under heavy load raceway surface of the friction torque is too large to meet the creeping tendency for the surface, or even slipping phenomenon, although these phenomena occurred in the outer ring, - but in severe circle is also the inevitable. The actual outer ring with the note should not be too large of a gap, so as not to penetrate the surface of the oil, to promote the occurrence of slip and deformation of the ring easy to reduce the bearing load zone.
Only prudent to take effective measures before allowing the appropriate reduction in the heavy-duty bearings with interference, and the amount of interference, although slightly reduced, the improvement of the bearing stress is greater, of course, the greater the benefits of thick film.
Under heavy surface contact area, with tight, close to the amount of ring and large deformation, so the bearing clearance is usually also made larger.
2. From the host to improve the design conditions of use FAG bearing all the host of the drive chain should be appropriate to take a high speed shaft until then to drive to work when the spindle speed, and leave the installation of spindle bearing components should also be larger, easy to use a larger bearing, These bearings are very favorable.



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