Page 13 - Dana Glacier Bearings Materials Brochure, designed and produced by Connell Marketing Associates, UK

Polymer Based Materials
Glacier DS
Detailed design information
on polymer bearings is
contained in the Glacier
Vandervell Polymer Bearings
Designer’s Books. developed to suit dry as well as
In some cases advances in design and performance have only been possible because
of the availability of such materials.
Polymer Based Examples
Glacier Hi-eX
Glacier DS
Similar to DX, Glacier DS is a
steel backed acetal co-polymer
lined composite bearing material.
Glacier DS, however, has been
marginally lubricated applications.
Glacier DS shows good dry wear
resistance particularly under slow
speed oscillating conditions where
problems of fretting and corrosion
damage to the mating surface are
likely with conventional bearing
materials.
Glacier Hi-eX
Glacier Hi-eX is a steel backed,
composite bearing material lined
with PEEK (polyetheretherketone)
along with various fillers including
PTFE. It is designed for marginally
lubricated operation, and is capable
of operating continuously at
temperatures in the range of -150°C
to +250°C, and up to +300°C for
short periods. It can also run without
lubrication under reduced loading
conditions.
Unlike bearings based on acetal
resins, Hi-eX is not degraded by
the acidic oxidation products
which result from the prolonged
use of hydrocarbon oils above
+80°C, or by shock absorber oils,
or by polyglycol or diester
lubricants.
Glacier DM
Under a steady load, Hi-eX can
with-stand specific loads up to
140N/mm². Its fatigue resistance
under dynamically loaded fluid film
conditions is high for a polymer lined
bearing, being in the same order as
that of aluminium based bearing
alloys.
Glacier DM
Glacier DM is a composite dry
bearing tape material consisting of
an expanded aluminium alloy mesh
impregnated with a glass fibre and
lead filled PTFE formulation.
Glacier DM is suitable for use at
temperatures within the range
-60°C to +250°C. DM provides
good wear resistance and a low
friction coefficient with negligible
stick-slip effects. The flexible nature
of this tape material allows easy
installation, excellent formability
and close tolerance assemblies.
Glacier EP
Glacier EP
Developed to complement Glacier’s
existing range of maintenance
free bearing materials for dry and
pre-lubricated applications, Glacier
EP is designed for light duty
operating conditions at
temperatures from -40°C to
+140°C and at specific loads of
up to 80N/mm².
Glacier EP bearings are self
lubricating and maintenance free
with excellent dimensional stability,
compressive strength, thermal
conductivity, and creep resistance,
low coefficient of friction and
thermal expansion.
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