Page 540 - SKF-bearing-housings

Flanged housings FNL series

Features and benefits Fig. 4
FNL flanged housings have the following fea- Cast indications mark the centre of the housing bore
tures and benefits:
Simple mounting
To simplify mounting and make alignment
more accurate, lines cast into the housing
flange indicate the centre of the housing bore.
Dimples indicate the position for dowel pins
(† fig. 4).
Grease guiding system
An integrated flange guides grease from the
grease fitting into the bearing († fig. 5).

Low friction seals
A low friction, double-lip seal on each side of
the housing keeps grease in and contaminants
out († fig. 6). These seals allow rotational Fig. 5
speeds twice that of traditional felt seals. Grease guiding system
Drilled holes for relubrication
FNL housings have two predrilled holes for
relubrication. One is centered and enables
relubrication via a lubrication feature in the
bearing. The other is offset and enables relu-
brication from the side.

Housing material
FNL flanged housings are made of grey cast
iron.
Paint, corrosion protection
FNL flanged housings are painted black
(RAL 9005) using a water based alkyd/acryl
paint. The paint protects the housing in Fig. 6
accordance with ISO 12944-2, corrosivity cat- Low friction seals
egory C2 (i.e. exterior atmospheres with low
level of pollution, interior atmospheres where
condensation may occur). The paint is not
affected by most lubricating or engine oils,
cutting fluids or alkalescent washing chemicals.
Housings can be repainted with most water or
solvent based 1- or 2-component paints.
Unpainted surfaces are protected by a sol-
ventless rust inhibitor.

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