Rulon® 641 is manufactured from FDA compliant materials which possess excellent load and wear characteristics.
It offers excellent, continuous non-lubricated service up to 10,000 PV – higher for intermittent service. While the load capacity of Rulon® 641 is generally limited to 1,000 psi at room temperature, deformation is a function of wall thickness, temperature and load.
Its compatibility with a wide array of mating surfaces, including mild steel, 303 and 316 stainless steels, as well as harder materials, make it a good choice for most food and pharmaceutical bearing applications.
Design Criteria Rulon® 641
Temperature – Typical Range °F (°C)
-400/+550 (-240/+288)*
Maximum PV (continuous) (MPa•m/s)
10,000 (0.35)*
Maximum P – psi (static) (MPa)
1000 (6.9)*
Maximum V – SFM (no load) (m/s)
400 (2)*
Shaft Hardness – Minimum
Rb25
Shaft Finish Recommended Ra (µ"/µm)
8-16 (0.2-0.4)*
Shaft Material
Stainless Steel Mild, 303 & 316
Engineering Information
Friction – Static & Dynamic
0.10-0.30
Water Absorption ASTM D570
0
Flammability ASTM D635
Non-flammable
Chemical Resistance
Inert
Thermal Conductivity BTU/hr/sq. ft./°F/in.
2.6
Linear Coefficient of Thermal Expansion
78°-200°F Diameter
3.9x10-5 (7.0)*
(26°-93°C) Length
4.9x10-5 (8.8)*
78°-300°F Diameter
4.2x10-5 (7.6)*
(26°-149°C) Length
5.7x10-5 (10.3)*
Physical Data
Elongation ASTM D638
1.75
Tensile Strength ASTM D638 (MPa)
2000 psi (13.8)*
Deformation ASTM D621
4% (1500 psi – 24 hr. RT)
Specific Gravity ASTM D792
2.25
A more complete data sheet is available upon request *Metric data in parentheses
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.
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.
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