Page 218 - SKF-bearing-housings
P. 218

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



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