SKF - Industrial Shaft Seals

Product data – general
HMSA10 seal
Fig. 12
Retention and exclusion
In many applications, the exclusion of contaminants
is just as important as lubricant retention.
Seals with an auxiliary lip, like the HMSA10
seals († fig. 12), are appropriate for these
applications.
Another option is to use two seals installed in
opposite directions († figs. 13 and 14) or two
opposing V-rings († fig. 15) with a spacing
washer.
Under extremely tough operating conditions,
SKF recommends using HDDF metal face seals
(† fig. 6 on page 18), provided that the sliding
velocity of the mating surfaces lies within the
permissible range.
Two seals in opposite direction
Fig. 13
Two seals in opposite direction
Fig. 14
V-ring
Fig. 15
20