SKF - Rolling Bearings

5 Cylindrical roller bearings
Bearings with an inner ring centred cage
SKF high-capacity cylindrical roller bearings
with an inner ring centred cage († fig. 13)
are identified by the series designation
NCF .. ECJB († product tables). They are
used to locate the shaft axially in one direction
and eventually to accommodate axial displacement
of the shaft relative to the housing in the
opposite direction.
When the outer raceway is integrated into
the application, these bearings can be supplied
without an outer ring (RN .. ECJB series).
Bearings with an outer ring centred cage
SKF high-capacity cylindrical roller bearings
with an outer ring centred cage († fig. 14)
are identified by the series designation
NJF .. ECJA. For some sizes, the bearings contain
more rollers than same-sized bearings
with an inner ring centred cage. They are used
to locate the shaft axially in one direction and
eventually to accommodate axial displacement
of the shaft relative to the housing in the
opposite direction. For additional information,
contact the SKF application engineering
service.
When the inner raceway is integrated into
the application, these bearings can be supplied
without an inner ring (RNU .. ECJA series).
Fig. 13
NCF .. ECJB
RN .. ECJB
Fig. 14
NJF .. ECJA
RNU .. ECJA
576