Four columns bearing
Four rows of cylindrical roller bearings are mainly used in cold and hot rolling mills, blanking machines and other rolling mill machinery. The bearings are separated structur. Bearing rings and rolling components can be easily separated, therefore, the bearing cleaning, inspection or installation and disassembly are very convenient.
FC type bearing consists of two outer rings and one inner ring. Each outer ring has two baffles and middle baffle. Inner ring has no baffle.
The FCD bearing is actually a combination of two NN bearings.
The FC and FCD bearings allow two axial displacements of the shaft relative to the bearing seat. Therefore, this kind of structure is suitable for floating end bearing. This type of bearing retainers mostly adopt vehicle - made solid 13:58.