Bearing Grade Polyolefin
Poly-Texx AR is a
self-lubricating Bearing Grade Polyolefin. Typical applications
include chain guides for the timber industry, sleeve and
flanged bearings for mining and highway service vehicles.
Bushings and slide plates for the railroad, and chemical
handling industry.
Its main attribute is its extreme abrasion
resistance. Its ultimate compressive strength (P) is 1,500 PSI.
Poly-Texx AR is capable of a low-load velocity
(V) of over 75 SFM. Its overall PV rating is 2,500. The
combination of excellent bearing properties, self-lubrication
and extreme abrasion resistance make Poly-Texx
AR a great choice for many demanding abrasion and wear
applications.
|
| Specific Gravity, 73°F |
.954 |
Lb/in.3 |
| Tensile Elongation at Break |
>350 |
% |
| Compressive Strength -
Ultimate |
1,500 |
psi |
| Tensile Strength at Yield 73°F |
2,700 - 2,900 |
psi |
| Izod Impact Strength(Double
Notched) |
25 |
Ft-lb./in. |
| Deformation Under Load |
2 |
% |
| Compressive Strength(Yield) |
1,200 |
psi |
| Compressive Strength(Ultimate) |
1,500 |
psi |
| Hardness(Scale as noted) |
65 |
Shore Hardness D |
| Coefficient of Friction (Dry vs
Steel) Static |
0.11-0.12 |
|
| Coefficient of Friction (Dry vs
Steel) Dynamic |
0.06-0.09 |
|
| Maximum Static Bearing Load
(P) |
1,200 |
psi |
| Maximum Unlubricated No Load
Bearing Velocity (V) |
75 |
ft/minute |
| Maximum Limiting PV
(Unlubricated) |
2,500 |
psi x ft/min. |
| Linear Coefficient of Thermal
Expansion |
7.8 x 10-5 |
In./in./°F |
| Embrittlement Temperature |
-50 |
°F Min. |
| Continuous Service Temperature in
Air |
180 |
°F Max. |
| Short Term Service Temperature |
225 |
°F Max. |
| Tg-Glass Transition
(Amorphous) |
N/A |
°F |
| Melting Point (Crystaline
Peak) |
275-280 |
°F |
| Molecular Weight |
5-6 million |
|
| Water Absorption, Immersion 24
Hours |
nil |
% |
| Water Absorption, Immersion
Saturation |
nil |
% |
| Machinability Rating |
5 |
1 =
easy, 10 = difficult |
| Rod Diameter Availability (Off the
Shelf) |
1/2" Dia. to 6" Dia. |
inches |
| Sheet Thickness Availability (Off
the Shelf) |
1/8 to 4" |
inches |
| Characteristics / Attributes |
Extreme Abrasion Resistance Low
Friction |
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. |
| 