Cages

















The main cage types are described in Components and materials. Additionally, information about standard cages, and possible cage options, for a particular bearing type is given in the relevant product section. If a bearing with a non-standard cage is required, check availability before ordering.
There are fundamental design differences between bearings which, together with the influence of bearing size, make certain cage designs necessary. For example:
- some bearing types need either split or snap type cages, because they are assembled after the rings and rolling elements have been sub-assembled
- other bearing types need roller-guided cages, to be self-containing
- bearings of a certain combination of size and series need ring-guided cages, to limit contact stress between rolling elements and cage.
Cages are mechanically stressed during bearing operation by frictional, impact, centrifugal and inertial forces. They can also be chemically influenced by certain organic solvents or coolants, lubricants, lubricant additives. Therefore, the material type used for a cage has a significant influence on the suitability of a rolling bearing for a particular application.