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Rulon Bearings

Saint-Gobain Rulon® FCJ Bearing/Seal PTFE  (discontinued **)
Categories: Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE)

Material Notes: Saint Gobain Rulon® CJ is now produced as a part of the TriStar Plastics Corp. product line under the CJ Bearings trade name.

Description: Rulon® is the Saint-Gobain trade name for their family of proprietary PTFE compounds. This family of materials offers the combination of high compressive strength, low coefficient of friction, and excellent abrasion and corrosion resistance while running without lubrication. They are used in bearing and seal applications from temperature extremes of 400°F to over 500°F with and without additional lubricants. A unique property of Rulon® is the absence of stick slip, that is, erratic low-speed motion.

FCJ: Identical composition to RULON CJ except the innermost layer is a RULON F tape liner instead of the synthetic fiber/PTFE liner. Ideally suited for non-lubricated moderate-load/high-speed applications that require a low coefficient of friction. Rc 25 and higher steel mating surface. Material has thermal and electrical insulating properties. Suitable for use in wet, dry, or vacuum environments. Markets for FCJ grade include Agricultural, Appliances, Automotive, Construction, Industrial, Transportation.

Vendors: TriStar Plastics Corp. provides engineering, custom fabrication and manufacturing of high-performance plastics and self-lubricating bearing materials, such as Rulon, PEEK, Torlon, CJ Composites and Ultracomp. Capabilities include component design, material selection, prototype and production, manufacturing and surface modification. Call (800) TRI-STAR (800) 874-7827 or visit or www.TStar.com

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Physical PropertiesMetricEnglishComments
Water Absorption 0.50 %
@Time 86400 sec
0.50 %
@Time 24.0 hour
Immersion
 
Mechanical PropertiesMetricEnglishComments
Compressive Yield Strength 138 MPa20000 psiMax load under tribological use
Compressive Strength 345 MPa50000 psi
Izod Impact, Notched 7.47 J/cm14.0 ft-lb/in
Limiting Pressure Velocity 0.701 MPa-m/sec20000 psi-ft/min
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 2.40e+18 ohm-cm2.40e+18 ohm-cm
Surface Resistance 3.90e+15 ohm3.90e+15 ohm
Dielectric Constant 4.15
@Frequency 1e+6 Hz
4.15
@Frequency 1e+6 Hz
Dielectric Strength 7.87 kV/mm200 kV/inShort Term
 
Thermal PropertiesMetricEnglishComments
CTE, linear 12.6 µm/m-°C7.00 µin/in-°F
Thermal Conductivity 0.202 W/m-K1.40 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 177 °C350 °F
Deflection Temperature at 1.8 MPa (264 psi) 177 °C350 °F
Minimum Service Temperature, Air -196 °C-320 °F

**
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PSTGQZ182 / 68696

Rulon Bearings

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