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Saint-Gobain Rulon® W2 Grade Bearing/Seal PTFE

Category Polymer , Thermoplastic , Fluoropolymer , PTFE
Manufacturer Saint-Gobain Perfomance Plastics
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Saint-Gobain Rulon® W2 Grade Bearing/Seal PTFE.pdf
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Material Notes:
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. PTFE = polytetrafluoroethyleneW2 Grade Bearing/Seal PTFE: Specifically developed for fresh water bearing and seal applications, Rulon W2 has the lowest wear rate in wet environment of any standard Rulon. Black in color. Suitable for wet, dry, or vacuum environments. Mating surface of Rc 25 or higher steel/stainless steel. Material does not have electrical and thermal insulation properties. Markets for W2 grade include Appliances, Automotive, Industrial, Transportation.Information provided by Saint Gobain Performance Products.
Physical Properties Metric English Comments
Density 2.10 g/cc
0.0759 lb/in³
ASTM D792
Water Absorption 0.00 %

@Time 86400 sec
0.00 %

@Time 24.0 hour
Immersion
Water Absorption at Saturation 0.00 %
0.00 %
Mechanical Properties Metric English Comments
Tensile Strength 12.4 MPa
1800 psi
ASTM D638
Elongation at Break 70 %
70 %
ASTM D638
Compressive Yield Strength 6.89 MPa
1000 psi
Max load under tribological use
Coefficient of Friction, Dynamic 0.15 - 0.30
0.15 - 0.30
Dry vs. Steel
Coefficient of Friction, Static 0.15 - 0.30
0.15 - 0.30
Dry vs. Steel
Limiting Pressure Velocity 0.350 MPa-m/sec
10000 psi-ft/min
Thermal Properties Metric English Comments
CTE, linear, Parallel to Flow 108 µm/m-°C

@Temperature 25.6 - 93.3 °C
60.0 µin/in-°F

@Temperature 78.0 - 200 °F
Length
113 µm/m-°C

@Temperature 25.6 - 149 °C
63.0 µin/in-°F

@Temperature 78.0 - 300 °F
Length
CTE, linear, Transverse to Flow 84.6 µm/m-°C

@Temperature 25.6 - 93.3 °C
47.0 µin/in-°F

@Temperature 78.0 - 200 °F
Diameter
88.2 µm/m-°C

@Temperature 25.6 - 149 °C
49.0 µin/in-°F

@Temperature 78.0 - 300 °F
Diameter
Thermal Conductivity 0.648 W/m-K
4.50 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 288 °C
550 °F
Minimum Service Temperature, Air -240 °C
-400 °F
Descriptive Properties Value Comments
Color Black
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