Page 496 - SKF-bearing-housings

Non-split plummer block housings and take-up housings SBD and THD series

Using sealed bearings
Using sealed bearings in housings with stand-
ard seals is a good solution for highly contam-
inated environments. The sealed bearing
together with the housing seal and grease
provide three layers of protection († SKF
three-barrier solution, page 39). SBD plum-
mer block housings and THD take-up housings
can, in most cases, be used together with self-
aligning sealed SKF bearings. When using
taconite heavy-duty seals, a sealed bearing
does not enhance the sealing effect during
operation, but still protects the bearing
against contaminants during mounting. For
additional information, contact the SKF appli-
cation engineering service.

Special seals
SBD plummer block housings and THD take-up
housings are available with taconite heavy-duty
seals. Taconite heavy-duty seals are grease
filled labyrinth seals that include a V-ring.
They can seal against taconite, a very fine-
grained mineral which is extremely difficult to
seal against.
Taconite seals require a modified housing,
designation suffix /VZ335. For additional
information, contact the SKF application
engineering service.

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