Bearing Grade Composite
Poly-Texx HPVG is a new
self-lubricating Bearing Grade Composite. Typical
applications include sleeve and flanged bearings for
railroad safety and service vehicles. Hydraulic guide
rings, bushings and slide plates for the timber, mining
and off-road vehicle applications.
Its main attribute is a PV rating of 30,000.
Its compressive strength (P) exceeds 34,000 PSI, and is
capable of a low-load velocity (V) of over 40 SFM. The
combination of excellent bearing properties,
self-lubrication and low cost makes Poly-Texx
HPVG a great choice for many demanding
applications.
|
|
Specific
Gravity,
73°F |
.049 |
Lb/in.3 |
|
Flexural
Strength,
73°F |
22,019 |
psi |
|
Shear Strength,
73°F |
11,000 |
psi |
|
Compressive
Strength -
Ultimate |
45,000 |
psi |
|
Tensile
Strength (With
Grain) |
N/A |
psi |
|
Izod Impact
Strength
(Edgewise, with
Grain) |
N/A |
psi |
|
Deformation
Under Load |
0 |
% |
|
Compressive
Strength I to
Laminate
(Yield) |
34,252 |
psi |
|
Compressive
Strength I to
Laminate
(Ultimate) |
45,000 |
psi |
|
Hardness,
Rockwell (Scale
as noted) |
100 |
Rockwell M |
|
Coefficient of
Friction (Dry
vs. Steel)
Static |
0.14 |
|
|
Coefficient of
Friction (Dry
vs. Steel)
Dynamic |
0.1 |
|
|
Maximum Static
Bearing Load
(P) |
34,252 |
psi |
|
Maximum
Unlubricated No
Load Bearing
Velocity
(V) |
40 |
ft/minute |
|
Maximum
Limiting PV
(Unlubricated) |
30,000 |
psi x
ft/min. |
|
Wear Factor "K"
x 10-8 |
3.9 |
Cubic
in.-min/ft.lbs.hr. |
|
Embrittlement
Temperature |
Cryogenic |
°F
Min. |
|
Continuous
Service
Temperature in
Air |
275 |
°F
Max. |
|
Short Term
Service
Temperature |
430 |
°F
Max. |
|
Tg-Glass
Transition
(Amorphous) |
N/A |
°F |
|
Melting Point
(Crystalline
Peak) |
N/A |
°F |
|
Dielectric
Strength Short
Term |
N/A |
Volts/mil |
|
Water
Absorption,
Immersion 24
Hours |
0.5 |
% |
|
Water
Absorption,
Immersion
Saturation |
2 |
% |
|
Machinability
Rating |
3 |
1 = easy,
10 =
difficult |
|
Tube Diameter
Availability
(Off the
Shelf) |
.125" ID to 60"
ID |
inches |
|
Sheet Thickness
Availability
(Off the
Shelf) |
6" |
inches |
|
Characteristics
/
Attributes |
Very High load,
Excellent
Bondability |
Self-Lubricating |
|
| Thank you for
your interest in our materials.
All statements, technical
information and recommendations
presented are in good faith,
based upon tests believed to be
reliable and practical field
experience. Poly-Tech is not
responsible for its accuracy or
completeness. It is our
recommendation and the
customer's responsibility to
determine the suitability of
any material for any given
application. |
|
| 