SEALS
are used to
create a barrier
between a rotating
and a stationary
surface. They
function to
retain or separate
lubricants or
fluids, keep
out contamination,
and contain
pressure. V-Ring
seals are all
rubber seals
used primarily
to exclude dirt
and other contaminants.
Wipers are flexible
lip exclusion
seals. They
are used to
wipe contaminants
from a shaft.
Scraper exclusion
seals have a
scraping edge
that maintains
contact with
the rod regardless
of any rod deflection
or motion. Hydraulic
seals and pneumatic
seals are designed
for the reciprocating
motion that
is common in
hydraulic and
pneumatic applications,
such as cylinders.
Rod seals &
Piston seals
are radial seals.
The seal is
fit onto a shaft
with the sealing
lip contacting
the housing
bore. Double
acting or bi-directional
seals are effective
when sealing
in both directions.
Important
dimensions to
consider when
specifying seals
include shaft
Outer Diameter
or seal Inner
Diameter, housing
bore Diameter
or seal Outer
Diameter, axial
cross section
or Thickness,
and radial cross
section. Important
service limits
parameters to
consider include
maximum operating
speed, maximum
operating pressure,
vacuum rating,
operating temperature
and any fluids
with which they
may come in
contact. Rubber
sealing element
or lip material
choices for
seals include
Aflas®,
VITON,
SILICON,
HYPALON,
EPDM,
TPR,
NBR,
NEOPRENE,
PTFE, PU,
SBR
& NATURAL.
The hardness
rating on a
Shore A scale
for Seals can
be 30 ~ 95 Durometer.
Exact specifications
should be clarified
by our engineers,
as chemical
and physical
properties of
Seals can differ
based on manufacturing
technique.
