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Operating conditions for bearings in vibratory machinery: Vibratory screens used for grading (= separation of solid materials by grain size) of materials and other
vibratory machinery such as road rollers and saw frames are among the machines subjected to the most severe stresses. The rolling bearings in the exciter
units of these machines must support not only high loads and high speeds but also accelerations and centrifugal forces. Many of these applications involve
adverse environmental conditions such as contamination and moisture. The special spherical roller bearings developed by FAG are matched to the operating conditions in vibratory machinery and have proved highly successful in practical use.
In particular, the cages of the rolling bearings are subjected to stresses arising from high radial accelerations. In unfavourable cases, these may be overlaid by axial accelerations as well. The rotating imbalance generates rotating shaft deflection and additional sliding motion within the bearings. This increases the friction and therefore the operating temperature of the bearings. The special spherical roller bearings can support dynamic angular misalignments of up to 0,15°. If larger misalignments must be accommodated, please consult Schaeffler Group Industrial Application Engineering.
Publisher: Schaeffler Technologies AG & Co. KG