Torlon - Materials - Technical

Torlon 4301

SPB Products made from this material
Balls, High speed bearing cages

Torlon® 4301 extruded PAI is primarily used for wear and friction parts. It has a low expansion rate and coefficient of friction and it exhibits very little friction in use. A flexural modulus of 1,000,000 psi is higher than most other advanced engineering plastics. This grade excels in severe service wear applications such as non-lubricated bearings, balls and bearing cages.


Properties of Torlon 4301

Physical Properties
PROPERTY UNIT VALUE
Density g/cm3 1.45
Surface Hardness Rockwell E 70
Tensile Strength MPa 82
Flexural Modulus GPa 5.5
Notched Izod ft-lb/in 0.8
Linear Expansion per oC x 0.000009
Max Operating Temp. oC 260
Water Absorption % over 24 hrs 0.4
Flammability UL94 V-0
Volume Resistivity ohm.cm at 50% RH 1013
Dissipation Factor @ 1MHz 0.037
Dielectric Constant @ 1MHz 6.0
Heat Deflection Temp. @ 0.45 MPa oC 200
Heat Deflection Temp. @ 1.80 MPa oC 279

Chemical Resistance
Chemical Resistance
Acids (Concentrated) Good
Acids (Dilute) Good
Alkalis Poor-Fair

Note! Property values are typical and should be used only as a guide to selection of materials and not as purchase specifications.


Balls can be found here in the Small Parts and Bearings balls online catalogue.

High speed bearings can be found here in the Small Parts and Bearings High Speed Ball Bearings online catalogue.


You can find Torlon in the Small Parts and Bearings Torlon Online Catalogue pages.


For a huge range of bearings online please visit the Bearing Shop Online Website.

Hobby and Engineering Supplies lists a smaller range of products and only the most popular items in each range. They also list many additional hobby specific categories.

For the best range of miniature and small bearings please try the Miniature Bearings Australia website. Miniature Bearings Australia also list a large variety of miniature engineering products.



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