The combined bearings for lift truck mast are made up of two counter-pressure rolls connected to each other by a mild-steel pin.
The rolls (appropriately shaped) have the task of supporting radial and axial loads separately.
This series, for extremely heavy-duty applications, allows adjusting the axial unit by means of relubricatable adjusting rings.
They are manufactured both in shielded version, therefore relubricatable, and watertight version.

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
Axial support: Steel UNI 40NiCrMo4 hardened and tempered

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

Alternative designs:

– bearings for high and low temperatures applications
– bearings for applications in aggressive environments
– tailor-made based on customer’s drawing

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