Page 218 - SKF-bearing-housings

Split plummer block housings SNL 30, 31 and 32 series

Relubrication via the outer ring Fig. 13
The hole in the centre of the cap or the hole in Grease escape hole
the base should be used to relubricate spher-
ical roller bearings with a relubrication feature
(a lubrication groove and holes in the outer
ring) († fig. 12). When applying grease via
the relubrication feature, the shaft should be
rotating. Narrow bearings (dimension series
13 and 22) in the locating position can be axi-
ally displaced, so that the relubrication groove
in the bearing does not line up with the relu-
brication hole in the housing cap. Make sure
the bearing is sufficiently centred when
relubricating.

Relubrication from the side
When relubricating from the side, which is
typically necessary for CARB toroidal roller
bearings, the offset hole in the housing should
be used († fig. 12).
When bearings mounted on an adapter
sleeve have to be relubricated from the side,
the grease should be introduced from the side
opposite the lock nut.
When bearings mounted at the end of a escape holes are identified by the suffix V, e.g.
shaft have to be relubricated from the side, SNL 3134 V.
the grease should be applied at the point
closest to the end cover.
Grease escape holes
If frequent relubrication is required, SKF
recommends having grease escape holes
(† fig. 13). Dimensions can be found in
table 9. SNL housings supplied with grease

Fig. 12

Lubricating the bearing Lubricating the bearing
via the outer ring from the side

214