Page 358 - SKF-bearing-housings

Split plummer block housings SONL series

Features and benefits Fig. 2
SONL plummer block housings have the
following features and benefits:
Simple mounting
To simplify mounting and make alignment
more accurate, lines indicating the centre of
the bearing seat and housing bore axis are
cast into the housing base. Dimples indicate
the position for dowel pins († fig. 2).
SONL housings have significantly fewer
components than earlier SOFN housings.
Their four cap bolts are loosened prior to
delivery for easy removal.
Mounting instructions are supplied with
each seal kit. The housings have an eye bolt on
the cap for safe and easy handling.
Deep sump for lower operating temperatures Fig. 3
SONL housings have a deep sump that holds
a large volume of oil so that heat can be dissi-
pated effectively († fig. 3). This cooling effect
extends the service life of both the lubricant
and the bearing.
If operating conditions require it, auxiliary
oil cooling tubes are available. These can be
installed through the oil outlet holes in the
housing base.
Strong, stiff and simple design
The simple, sturdy design of SONL housings
provides maximum support and reduces the
risk of deforming the cap or base during
installation. Dowel pins between the cap and
base are off-centre so that the cap can only
be installed one way.
Fig. 4
Comprehensive seal kits
In addition to the seals, seal kits for SONL
housings are supplied standard with
(† fig. 4):
• an oil level gauge that makes it easy to visu-
ally check the level and condition of the oil
• a magnetic plug that screws into one of the
four tapped holes in the housing base. This
plug attracts metal particles, extending the
service life of the lubricant and bearing.

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