WASHERS
are disks of
rubber placed
beneath a nut,
an axle bearing,
or a joint,
to relieve friction,
prevents leakage,
isolate, prevent
loosening or
distribute pressure.
There are many
different types
of washers and
washer type
products for
a variety of
applications.
Common types
include Flat
Washers, Beveled,
C-Washers, D-shaped
Washers, Sealing
Washers, Spherical
Washers, Square
Washers &
Shoulder Washers.
Flat Washers
are thin, flat,
and circular
general-purpose
washers, with
a centrally
located hole.
Beveled Washers
have a tapered
bearing surface.
C-Washers have
a slot cut from
the center to
the perimeter.
D-shape Washers
have a flat
edge cut away
on the parameter.
Sealing Washers
seal around
a bolt or fastener.
Spherical Washers
have a cross-section
in the form
of a half or
partial sphere.
Square Washers
can have a rectangle
shaped inside
or outside profile.
Shoulder Washers
have a sleeve
with the same
inner diameter
as washer hole.
Washers
can be specified
in ANSI nominal
sizes or ANSI
metric sizes.
Important size
dimensions to
consider when
specifying washers
include Inside
Diameter, Outside
Diameter, Thickness
or working Height,
and rated or
working load.
Materials of
construction
include
Aflas®,
VITON,
SILICON,
HYPALON,
EPDM,
TPR,
NBR,
NEOPRENE,
PTFE, PU,
SBR
& NATURAL.
The
hardness rating
on a Shore A
scale for Washers
can be 30 ~
95 Durometer.
Exact specifications
should be clarified
by our engineers,
as chemical
and physical
properties of
Washers can
differ based
on manufacturing
technique.
