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Rulon® LR is a maroon colored bearing material best known for its versatile design properties.
It is compatible with most hardened steel substrates. Mild steel is acceptable; harder running surfaces are better.
Rulon® has a practically universal chemical inertness. Of the chemicals encountered in commercial practice, only molten sodium and fluorine, at elevated temperatures and pressures, show any signs of attack.
For continuous non-lubricated service, Rulon® LR sleeve bearings are capable of operating up to 10,000 PV. Higher values are possible for intermittent service.
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Temperature – Typical Range °F (°C) |
-400/+550 (-240/+288)* |
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Maximum PV (continuous) (MPa•m/s) |
10,000 (0.35)* |
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Maximum P – psi (static) (MPa) |
1000 (6.9)* |
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Maximum V – SFM (no load) (m/s) |
400 (2)* |
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Shaft Hardness – Minimum |
Rc35 |
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Shaft Finish Recommended Ra (µ"/µm) |
8-24 (0.2-0.6)* |
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Shaft Material |
Steel |
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Friction – Static & Dynamic |
0.15-0.25 |
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Water Absorption ASTM D570 |
0% |
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Flammability ASTM D635 |
Non-flammable |
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Chemical Resistance |
Inert |
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Thermal Conductivity BTU/hr/sq. ft./°F/in. |
2.3 |
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Linear Coefficient of Thermal Expansion |
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78°-200°F Diameter |
3.5x10-5 (6.3)* |
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(26°-93°C) Length |
6.2x10-5 (11.2)* |
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78°-300°F Diameter |
3.6x10-5 (6.5)* |
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(26°-149°C) Length |
7.0x10-5 (12.6)* |
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Elongation ASTM D638 |
135% |
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Tensile Strength ASTM D638 (MPa) |
2000 psi (13.8)* |
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Deformation ASTM D621 |
3% (1500 psi – 24 hr. RT) |
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Specific Gravity ASTM D792 |
2.25 |
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Automatically molded bearing and components
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Sleeve, flanged and thrust bearings
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Piston rings
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Stamped and formed seals
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Extruded Shapes
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Machined parts
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Molded shapes
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Pumps
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Mixers
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Compressors
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Appliances
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Automotive
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Insulators
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Linear slides
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Pipe support
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Wear bands
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