Page 630 - SKF-bearing-housings

Split plummer block housings for steel converters, SKND series

Housing design Housings for non-locating bearings are
available for spherical roller bearings and
SKND converter housings are split housings CARB toroidal bearings(† fig. 3). Housings
consisting of a cap and base († fig. 1) and for spherical roller bearings contain a cast iron
split housing covers and seal covers on each bushing that serves as the bearing seat in the
side. The base has four bosses that have been housing. The outer ring of the spherical roller
drilled and spotfaced to provide a flat surface bearing slides in the bushing to accommodate
for washers and attachment bolts. thermal elongation of the shaft. Housings for
There are three basic housing variants: CARB bearings do not contain a bushing
because the bearing accommodates thermal
• Housings for locating (fixed) bearings elongation of the shaft internally, as well as
( designation suffix F) misalignment of the inner ring relative to the
• Housings for non-locating (free or loose) outer ring.
spherical roller bearings (designation suffix L)
• Housings for non-locating CARB toroidal
roller bearings (designation suffix VC)
Housings for the locating bearing position are
initially mounted with non-split spherical
roller bearings but due to downtime costs, the
original bearings are replaced by split spherical
roller bearings. For this reason, SKND… F con-
verter housings are equipped with spacers
that are initially mounted on each side of the
bearing inner ring († fig. 2). Then, when the
bearing needs to be replaced, a split spherical
roller bearing, which has a wider inner ring
than the original, can be mounted without any
modifications to the housing.

Fig. 1

626