Page 198 - SKF-bearing-housings

Split plummer block housings SNL 30, 31 and 32 series

Features and benefits Fig. 2
SNL plummer block housings in the 30, 31 and Reinforcement rib in the base
32 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). This virtually
eliminates any distortion of the base and bear-
ing seat during tightening of the attachment
bolts.
Good heat dissipation
The centre cross reinforcement in the housing
base († fig. 3) increases 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
Centre cross for better heat conduction
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. 4).
Dimples to locate accessories
Dimples cast into the housing cap indicate
where grease fittings and condition monitor-
ing sensors can be mounted for maximum
effectiveness († fig. 5).
Simple mounting
To simplify mounting and make alignment
more accurate, lines indicating the centre of Fig. 4
the bearing seat and housing bore axis are Individually marked cap and base
cast into the housing base. Dimples indicate
the position for dowel pins († fig. 6). Mount-
ing instructions are supplied with each seal
pack. The housings have two eyebolts on the
cap for safe and easy handling.

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