Load directions for Extreme Bearings
Extreme Bearing units are intended for loads acting vertically towards the base plate support. Therefore, if the bearing housing is supported over its entire base, loads are limited only by the load limits of the bearing insert. If loads acting in other directions occur or if the housing is not supported over its entire base area, check that the magnitude of the load is permissible for the bolt assembly attached to the machine frame.
Type EXF 4 bolt flange bearings
The load capability is limited by the bolt fastening
Loads acting vertically toward the base plate
Type EXS Pillowblock
Type EXW 2 bolt flange bearings
Type EXL 3 bolt flange bearings
Type EXT Take-up bearings
Type EXC Tapered pillowblock bearings
Axial load carrying capacity
If Extreme Bearings are mounted on smooth shafts with no fixed abutment, the magnitude of the axial load that can be supported is determined by the friction between the shaft and sleeve. Provided the bearings are correctly mounted, the permissible axial load can be calculated from:
Fap = 0,003 B d where: Fap = maximum permissible axial load, kN
B = bearing width, mm
d = bearing bore diameter, mm
The EXF bearing unit can be provided with a tensioner stud. In that case, the load can act in the opposite direction to the threaded rod. This is a unique feature of this type of Extreme Bearing.
Thrust bearing unit
The EXV thrust bearing unit is designed for pure thrust loads and can handle little or no radial load. Perhaps this is a better solution for your needs if there is no radial load.