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Rulon® 641

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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.
Rulon® 641

Typical Product and
 
Application Description  
Products Applications  
  • Automatically molded bearing and components
  • Sleeve, flanged and thrust bearings
  • Piston rings
  • Stamped and formed seals
  • Extruded Shapes
  • Machined parts
  • Molded shapes
  • Pumps
  • Mixers
  • Compressors
  • Appliances
  • Chute Liners
  • Insulators
  • Linear slides
  • Shaft bearings
  • Wear bands
  • Seals
 

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