Page 164 - SKF-bearing-housings

Split plummer block housings SNLN 30 series

Sealing solutions The housing size determines which sealing
solutions can be used. Table 2, page 162,
SNLN 30 plummer (pillow) block housings are provides an overview of the characteristics and
available with different standard sealing solu- suitability of each sealing solution. Details are
tions († fig. 8). provided in the following text. This information
should be used as a guideline, and does not
• four-lip seals (TSN .. L) substitute for testing a seal in its application.
• V-ring seals (TSN .. A)
• felt seals (TSN .. C)
• labyrinth seals (TSN .. S) Four-lip seals
• taconite heavy-duty seals (TSN .. ND, TNF ..) Four-lip seals replace the former double-lip
• end covers (ASNH .., ETS ..) seals (TSN .. G). When compared to double-lip
seals, the new seals are more effective. They
also generate less friction, which enables
higher shaft speeds. Four-lip seals are radially
split and easy to mount.

Fig. 8
Standard sealing solutions for SNLN 30 plummer block housings

Four-lip seal V-ring seal Felt seal Labyrinth seal
TSN .. L TSN .. A TSN .. C TSN .. S

Taconite Taconite End cover End cover
heavy-duty seal heavy-duty seal ASNH ... ETS ...
TSN .. ND TNF

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