Page 649 - SKF-bearing-housings

Sealing solutions

Sealing solutions NOTE: V-ring seals and band clamps must be
ordered separately. Appropriate V-ring seals
FSDR .. K housings are designed for two seal- and band clamps are listed in table 2,
ing solutions († fig. 5): page 647.

• a labyrinth seal in combination with one
V-ring seal and a PTFE strip, for all housings
except size 49/1320
• a labyrinth seal in combination with two
V-ring seals, for housings size 49/1320
Table 1, page 646, provides an overview of
the characteristics and suitability of both seal-
ing solutions. Additional information is pro-
vided in the following text. This information
should be used as a guideline, which cannot
substitute for testing a seal in its application.
The labyrinth seal consists of two parts: the
housing cover and a labyrinth ring. Both are
split. The cover is bolted to the housing body
and does not rotate. The labyrinth ring is
bolted onto a shaft sleeve and rotates with the
shaft. The V-ring seals have a long seal lip that
seals axially against the cover. They are
located radially by steel clamping bands and
axially by the labyrinth ring. For housings with
one V-ring seal, a PTFE strip, mounted in a
groove in the cover, provides additional
protection.
Labyrinth seals are supplied together with
the housing, but can also be ordered separ-
ately. Contact SKF for additional information.
Shaft sleeves are also supplied with the
housing.

Fig. 5

15

Labyrinth seal with one V-ring seal Labyrinth seal with two V-ring seals

645