GENERAL PROPERTIESTurcite ® is a self-lubricating thermoplastic bearing material manufactured by American Variseal Bearings (formerly Shamban Polymer Technologies) Group. These materials are cost effective, chemically resistant, wear resistant, and are well suited to a wide range of temperatures. Turcite ® A and Turcite ® X are acetal-based materials and their properties and applications can be compared to those of more well-known Delrin AF ®. Turcite ® materials are available in rod form only.
( see also HiMod Grade Specifications )
Self-lubricating Maintenance-free, long-wearing bearings Low cost High chemical resistance Moisture resistant Always oven annealed for stress-relief
Bearings Rollers Bushings Guides Sleeves Thrust washers Valve seats Gears Liners Wear surfaces Seals Insulators Cams Cam followers
TURCITE ® GRADESTurcite ® A ( also known as Turcite ® TA )
Turcite ® A is suitable for moderate to heavy loads at moderate speeds. It performs well under vibratory and dynamic loading and is readily machinable. It is recommended for a maximum continuous service temperature of 180°F (80°C). Turcite ® A has higher wear resistance than Turcite ® X. It is BLUE in color.
Turcite ® TX ( also known as Turcite ® X )
Turcite ® X excels in low load and high speed applications, and can be easily machined. It has minimal hygroscopic characteristics and possesses low thermal expansion properties, resulting in a structurally stable material. Its maximum continuous service temperature is also 180°F (80°C). Turcite ® X has lower friction than Turcite ® A. It is RED in color.
TYPICAL PROPERTIES of TURCITE ® A and X
|ASTM or UL test||Property||Turcite ® A||Turcite ® X|
|D570||Water Absorption, 24 hrs (%)||0.2||0.2|
|D638||Tensile Strength @ break (psi)||7,600||5,900|
|D638||Tensile Elongation at Break (%)||15||19|
|D790||Flexural Strength (psi)||11,000||8,000|
|D790||Flexural Modulus (psi)||350,000||335,000|
|D695||Compressive Strength (psi)||13,000||12,000|
|D256||IZOD Impact Notched (ft-lb/in)||0.57||0.54|
|D696||Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
|D648||Heat Deflection Temp (°F / °C)
at 264 psi
205 / 96
203 / 95
|-||Max Operating Temp (°F / °C)||180 / 82||180 / 82|
|*||Wear Factor @ 73°F (in/psi-fpm-hr)||43 x 10-10||30 x 10-10|
|*||Coefficient of Friction, Dynamic (non-lubricated)||0.30||0.22|
|*||Limiting PV @ 100 fpm (psi-fpm)||7,500||16,000|
* = Values obtained from standard TSS Test Method (not ASTM).TURCITE is a registered trademark of Trelleborg Sealing Solutions.
NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.
All values at 73°F (23°C) unless otherwise noted.