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Rulon® J is an all-polymeric reinforced, dull gold-colored PTFE compound.  This Rulon grade is best used in aluminum and soft mating surfaces.  It provides the lowest coefficient of friction of all Rulon® and provides good wear and abrasion resistance. This makes it ideally suited for start/stop applications where stick-slip must be eliminated. Rulon® J can be run on non-ferrous and non-metallic mating surfaces such as 316 Stainless, brass, and other plastic.  It is used in both bearing and seal applications but is generally not suitable for use in alkaline or oxidizing acid solutions.

Notable Material Features

  • High compression strength
  • Low coefficient of friction
  • Excellent abrasion and corrosion resistance while running without lubrication
  • Excellent for Dry & Vacuum Environments
  • Ideal for Eliminating “Slip Stick”
  • Maximum Pressure Veloity (continuous) MPa x m//s): 7500PV (.35)
  • Maximum Pressure PSI (Static) MPa): 750 PSI (6.9)
  • Maximum Velocity  – SFM (No Load) (M/S): 400 (2)
  • Shaft Hardness Minimum: Rc25
  • Shaft Finish Ra µin9 (µm): 8-16 (.2-.4)
  • Shaft Material: 316 Stainless Steel & Non-Ferrous

Rulon LR Properties
Temperature – Typical Range ˚F (˚C ) -400/+550 (-240/288)*
Maximum PV (continuous)(MPa+m/s) 7,500 (0.26)*
Maximum P – psi (static)(MPa) 750 (5.2)*
Maximum V -SFM (no load)(m/s) 400 (2)*
ShaftHardness – Minimum Rb25
Shaftfinish recommended Ra (min/um) 8 – 16 (0.2-0.4)*
ShaftMaterial 316 Stainless Steel
ShaftMaterial Non-Ferrous

Products Applications
Automatically molded bearings & components Printers
Sleeve,flanged and thrustbearings Copiers
Piston Rings Air Compressors
Stamped and formed seals Appliances
Extruded shapes Automotive
Machined parts Insulators
Molded shapes Linear slides
Anemometers
Engineering
Friction – static & dynamic .12 – .20
Water Absorption ASTM D570 0%
Flammability ASTM D635 Non-Flammable
Chemical Resistance ChartAvailable
Thermal Conductivity 2.0
BTU/hr/sq.ft./˚F/in. 2.0
Linear Coefficientof (78˚-200˚F) Diameter 4.9×10-5 (8.8)*
Thermal Expansion (26˚ -93˚C) Length 6.5×10-5 (11.7)*
(78˚-300˚F) Diameter 5.2×10-5 (9.4)*
(26˚-149˚C) Length 6.8×10-5 (12.2)*
Physical Data
Elongation ASTM D638 180%
Tensile Strength ASTm D638 (MPa) 2000 PSI (13.8)
Deformation (1500 psi – 24 hr. RT) 3%
Specific Gravity 1.95

Rulon® is a registered trademark of Saint-Gobain Performance Plastics Corporation.