Page 64 - SKF-bearing-housings

Split plummer block housings SNL 2, 3, 5 and 6 series

Features and benefits Fig. 2
SNL plummer block housings in the 2, 3, 5 and Reinforcement rib in the base
6 series have the following features and
benefits:

Stiff housing
The housing base is reinforced with ribs and
has extra material surrounding the holes for
the attachment bolts († fig. 2). The attach-
ment bolts can be preloaded to locate the
housing without deforming the housings base
or bore.
Good heat dissipation
Additional ribs in the housing base († fig. 3)
increase the contact area between the housing
base and the support surface to improve the
heat flow from the bearing outer ring to the
support surface. Fig. 3
Extra rib for better heat conduction
Grease guiding system
For more efficient relubrication from the side,
SNL housings from sizes 216 and 516-613
upwards have an integrated flange that guides
grease from the grease fitting directly to the
bearing († fig. 4).
Caps and bases individually marked
The housing cap and base are matched during
manufacture and are not interchangeable with
the caps and bases of other housings. To pre-
vent any mismatches, a unique serial number
is marked on both the housing cap and the
base († fig. 5).

Dimples to locate accessories
Dimples cast into the housing cap indicate Fig. 4
where grease fittings and condition monitor- Grease guiding system
ing sensors can be mounted for maximum
effectiveness († fig. 6).
Simple mounting
To simplify mounting and make alignment
more accurate, lines indicating the centre of
the bearing seat and the housing bore axis are
cast into the housing base. Dimples indicate
the position for dowel pins († fig. 7). Mount-
ing instructions are supplied with each seal
pack.
Housings from size 524-620 and above are
supplied with an eye bolt on the cap for safe
and easy handling.

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