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Rulon Bearings

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TriStar Ultracomp UC-400 Composite Bearing
Categories: Polymer; Thermoplastic

Material Notes: Ultracomp UC-400 - Designed for high loads, low speeds, impact and vibration applications. UC-400 has a MOS2 additive for salt water applications where cathodic reactions could occur. Excellent dry wear properties in slow rotary or reciprocating bearings.

This family of composite 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 cryogenic to over 360°F with and without additional lubricants.

Ultracomp Bearing Grade Composite: Laminates composed of synthetic fabrics impregnated by thermosetting resins and solid lubricant fillers. Material is available in tubes and sheets. Ideally suited for non-lubricated ultra high-load/low-speed applications that require a low coefficient of friction. Operates well in demanding and destructive environments. Suitable for use in steam, wet, dry, or vacuum environments. Rc 35 or higher steel mating surface. Markets for Ultracomp Bearing Grade Composite include Agricultural, Appliances, Automotive, Construction, Industrial, and Transportation.

Vendors: TriStar Plastics Corp. provides engineering, custom fabrication and manufacturing of high-performance plastics and self-lubricating bearing materials, such as Rulon, PEEK, Torlon, CJ Composites and Ultracomp. Capabilities include component design, material selection, prototype and production, manufacturing and surface modification. Call (800) TRI-STAR (800) 874-7827 or visit or www.TStar.com

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.32 g/cc
Water Absorption <= 0.10 %24 hrs
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell M 100
Tensile Strength, Yield 9500 psi
Compressive Yield Strength 14000 psiPerpendicular to Laminate
Ultimate Compressive Strength 52000 psiPerpendicular to Laminate
Compressive Modulus 750 ksiPerpendicular to Laminate
Machinability 4.0 %1=Easy; 10=Hard
Shear Strength 21000 psi
Izod Impact, Notched >= 20.0 ft-lb/in
Coefficient of Friction, Static 0.15Dry vs. Steel
Limiting Pressure Velocity 25000 psi-ft/minUnlubricated
 
Thermal PropertiesOriginal ValueComments
CTE, linear 40.0 - 100 µin/in-°F
Maximum Service Temperature, Air 335 °FContinuous
 360 °FShort Term
Minimum Service Temperature, Air -400 °FEmbrittlement Temp

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PTRIST984 / 99335

Rulon Bearings

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