FAG FL36209 Flanschlager-Gehäuseeinheiten

As a housed bearing unit, this product combines a housing with a ready-to-mount bearing insert. The available technical details for this bearing are given in the specification table. A grey cast iron housing with an insert bearing in standard bearing steel already fitted; the sealing design is not recorded as a separate catalogue attribute for these items.

This bearing unit consists of a grey cast iron body with an integral flange and an insert bearing already mounted within it; it is bolted as a whole onto a flat face standing perpendicular to the shaft axis. The material of the housing shapes the behaviour of the bearing position more markedly than it appears at first sight. Grey cast iron is strong in compression, can be cast with greater wall thickness and with stiff transitions between hub and flange, and damps vibration; the unit therefore largely holds the position of the insert by its own means instead of drawing it from the mounting face.

Compared with a steel version, however, the cast material is more sensitive to shock loading, which has to be taken into account with impact loads and when bolting — tightening torque, seating under the bolt head. The insert bearing sits with its spherical outer surface in the spherical seat of the housing and aligns itself to the shaft during mounting, so that an angular offset between face and shaft is taken up; rings and rolling elements are made of standard bearing steel, and the shaft is locked, depending on the version, by grub screws, an eccentric locking collar or an adapter sleeve.

No separate catalogue attribute for the sealing of these items is available. That matters for the selection, because it determines what ingress the unit withstands and whether relubrication can sensibly be provided for; the information is to be taken from the type designation and the specification table of the individual item and reconciled with the ambient conditions of the bearing position.