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It is widely applied to low speed and medium speed rolling mills. The internal clearance is adjusted and makes it easier to operate.

It is classified into 2 types: capped and open. Both of them can bear radial and double row axial loads.

Toroidal roller bearings are kind of new single-row radial bearing. It has crowned symmetrical rollers and circular ring raceways.The rollers of the toroidal bearings are self-guiding, that’s to say they adjust the position in which the loads are averagely distributed over the length of the rollers no matter the inner ring is axial displaced or not. The raceways of the inner rings and outer rings are concave and arranged symmetrically about the center of the bearings.