Bearing Grade Composite
Poly-Texx HPVT is a new
self-lubricating Bearing Grade Composite. Typical
applications include sleeve and flanged bearings for
railroad safety and service vehicles. Bushings and slide
plates for the chemical and Timber handling industry, and
knuckle and pivot bearings for mining and off-road
vehicle applications.
Its main attribute is a PV rating of 40,000.
Its compressive strength (P) exceeds 34,000 PSI, and is
capable of a low-load velocity (V) of over 50 SFM. The
combination of excellent bearing properties,
self-lubrication and low cost makes Poly-Texx
HPVT a great choice for many demanding
applications.
|
|
Specific
Gravity,
73°F |
1.33 |
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) |
50 |
ft/minute |
|
Maximum
Limiting PV
(Unlubricated) |
40,000 |
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 |
175 |
Volts/mil |
|
Water
Absorption,
Immersion 24
Hours |
0.5 |
% |
|
Water
Absorption,
Immersion
Saturation |
1.3 |
% |
|
Machinability
Rating |
5 |
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 |
High PV |
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. |
|
| 