Back-up rollers are used in the banks of metal sheet straightening machines. The thickness variation of the metal sheet to be processed produces very high impact loads on the bearings.
The special internal design and the high accuracy of these bearings guarantee a uniform load distribution and allow slight misalignments. This series of bearings comprise an efficient sealing system in order to protect the rolling elements and raceways from humidity, dust and calamine traces.
Crowned outer ring running surface profile for an optimized radial load distribution
Strong support of axial loads thanks to lateral thrust bearings
Stud provided with a relubrication system
Dimensions and Tolerances
Radial Internal Clearance
ALPHA single row cylindrical roller bearings are supplied in normal clearance (CN) in accordance with DIN 620-4 and ISO 5753-1, but they are also available in all clearance classes with restricted clearance or increased clearance.