The combined bearings are manufactured according to the Unified Parameters which govern a correct execution of rolling bearings.
This series can be supplied both with steel shield and they can therefore be relubricated and in the sealed performance.The outer rings are normally scheduled in correct convex performance to counteract the inevitable geometrical errors originating from the coupling with the guideways in which they roll.
Bearings are greased at source with grade “3” lithium base grease.
For special performances, as the use of these bearings at high temperatures, please inquire our Engineering Office.

General Specifications

Materials

Outer races: Steel UNI 20MnCr5 casehardened and tempered with final surface hardness 60±2 HRc
Inner races: UNI 100Cr6 tempered and annealed steel with surface hardness equal to 60±2 HRC
Rolling bodies: UNI 100Cr6 tempered and annealed steel with surface hardness
equal to 62±2 HRC
Main pin: Steel UNI Fe52C annealed to be easily welded

Tolerances: According to DIN 620 standard
Precision class: P0
Tip clearances: According to DIN 620 standard
Load factors: Calculated in compliance with ISO 76 and ISO 281 standards

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Kombinierte Rollenlager für PräzisionsstahlprofileKombinierte Rollenlager für Präzisionsstahlprofile

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