+43 664 88299952 info@alphabearing.net
ALPHAbearings-stahlindustrie-steel-industry-zylinderrollenlager-sendzimirgerüste-stützrollen-rolling-mills-straighenting-laminatoi-spianatrici-controrulli-back-up-rollers ALPHAbearings-stahlindustrie-steel-industry-zylinderrollenlager-sendzimirgerüste-stützrollen-rolling-mills-straighenting-laminatoi-spianatrici-controrulli-back-up-rollers

Back-up Rollers

with stud

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

The boundary dimensions of the bearings are not standardized. ALPHA Wälzlager GmbH supplies back-up rollers with normal tolerance (PN) in accordance to DIN 620-2 and ISO 492. Please contact our technical department to check the availability of bearings with improved accuracy class or special tolerances.

Radial Internal Clearance

ALPHA back-up 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.


Nikolaigasse 39 – 9500 Villach (Austria)
+43 664 88299952
UID-Nr / VAT: ATU68405219