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Bearing grade materials have excellent wear resistance in addition to the lowest coefficient of friction.

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    • Bearing grade Ketron® HPV PEEK has excellent wear resistance in addition to the lowest coefficient of friction and the best machining characteristics of the filled PEEK stock shapes.
      The addition of carbon fibers, PTFE and graphite to virgin PEEK results in a Ketron PEEK "Bearing Grade".
      Its excellent tribological properties (low friction, long wear and high Pressure-Velocity capabilities) make this grade especially suited for bearing and wear applications.
    • Maximum Operating Temperature: 482°F Continuous
    • ProtoPEEK® 5025 is a proprietary, bearing grade PEEK (polyetheretherketone) material, reinforced with carbon fibers and internally lubricated with different proprietary lubricants to improve dry running capabilities. Tribological evaluations under dry running conditions have shown its friction coefficient and wear rate to be much lower than other bearing grade composite materials available in the market. Its extremely low wear rate along with low coefficient of thermal expansion properties make this material an ideal candidate for replacing metal wear components.
    • BR60 consists of multiple plies of heavy-weight canvas cloth saturated with phenolic resin system, modified with molybdenum disulfide, which provides internal lubrication to reduce frictional heat generation and wear of metal shafts on the bearing. The pre-preg (b-stage) plies are then laminated under heat and pressure to produce a thermoset composite material. BR60 laminates offer load-bearing capacities equivalent to those of brass and bronze, but will not seize to metal shafts, speeding up bearing replacement and reducing equipment downtime. Compared to thermoplastics, BR60 provides superior load-bearing properties and has a Coefficient of Thermal Expansion that more closely matches the CTE of metal shafts. BR60 is used to make water-cooled propeller stave bearings on ships. In addition, steel and aluminum rolling mills prefer BR60 bearings because they last longer than metal and thermoplastic bearings in many applications and can be replaced quickly during overhauls.
    • Techtron HPV is an extruded form of polyphenylene sulfide with reinforcement and internal lubricants, offering excellent wear resistance, strength, dimensional stability and chemical resistance. Techtron HPV is an ideal material for applications where standard engineering plastics (nylon, acetal, and polyesters) fall short, and advanced materials (polyimides, PEEK, and polyamide-imides) are over-engineered solutions.
      • Note: Rods are sold in Standard 1 meter lengths (3.28 feet) (39.3 inches)
    • Norplex BR70 Bearing Laminate consists of multiple plies of heavy-weight canvas cloth saturated with phenolic resin system modified with alumina, which adds hardness to the bearing to reduce wear. The pre-preg (b-stage) plies are then laminated under heat and pressure to produce a thermoset composite material. Similar in construction to BR30, this product is colored red for easier inspection of bearing surfaces. BR70 laminates offer load-bearing capacities equivalent to those of brass and bronze, but will not seize to metal shafts, speeding up bearing replacement and reducing equipment downtime. Compared to thermoplastics, BR70 provides superior load-bearing properties and has a Coefficient of Thermal Expansion that more closely matches the CTEs of metal shafts. BR70 is used to make water-cooled propeller stave bearings on ships. In addition, steel and aluminum rolling mills prefer BR70 bearings to metal and thermoplastic bearings because they last longer in many applications and can be replaced quickly during overhauls.
    • Delrin® Acetal POM Balls are used in a variety of bearing, and seal applications. These balls are precision ground for tight tolerance & are made of solid, high-quality thermoplastic.
    • Tolerance ±.001" for all sizes.
    • Standard Color: Natural (white). - Black may be produced on a special order basis.
    • Delrin® Acetal POM Balls are used in a variety of bearing, and seal applications. These balls are precision ground for tight tolerance & are made of solid, high-quality thermoplastic.
    • Tolerance ±.001" for all sizes.
    • Color: Natural (white)
    • DuraSurf™ Wear Strip (Standard Wear Strip is NOT Treated For Bonding - no adhesive)
      DuraSurf™ is the registered trade name of ultra high molecular weight polyethylene (UHMW-PE) products, most notably sintered base materials for snowboards and skis. For over a decade, Crown Plastics has supplied every major snowboard manufacturer with DuraSurf™ products.

      Employing an exclusive continuous compression process, Crown Plastics manufactures UHMW (Ultra High Molecular Weight) film ranging in thickness from .020"-.125" in continuous wear strip or sheet rather than the conventional molding and skiving processes used for .003"-.020" film. The continuous compression process process is faster and far less labor intensive and produces a smoother, more consistent UHMW material for wear resistant coatings. This enables Crown Plastics to offer a high quality UHMW product at a lower cost in standard lengths regardless of thickness. Continuous processing also allows for special lengths with no scrap or waste for larger custom orders.

      With the ever-increasing popularity of sheet, rod, tube and profiles, UHMW has rapidly become the staple product in the plastics industry. Although tape and film applications have also risen sharply, a surprising number of people are still unaware of the existing benefits of DuraSurf™ wear resistant coatings and materials. Countless washers and gaskets can be produced from UHMW and Crown Plastics roll capabilities allow for faster, cheaper stamping. Wear strip, mechanically fastened or adhered, eliminate numerous areas of friction and wear in material handling applications. Processing and treating the UHMW so it can be bonded to a pressure sensitive, adhesive backing also eliminates the need to mechanically fasten and reduces waste. Bushings, bearings, doctor blades, guides, rails, shims, wear plates, liners, and wipers are just a few of the many uses for DuraSurf™ wear resistant coatings and continuous wear strip.
    • Ertalyte® TX for machining high-wear-resistant parts is an unreinforced semi-crystalline thermoplastic polyester (PET-P) that has a solid lubricant filler. The material has excellent performance in both high-pressure and high-velocity conditions, and is ideally suited for applications involving soft metal and plastic mating surfaces.

      Key properties of Ertalyte TX, are its high strength and stiffness, high wear-resistance, very good dimensional stability, high creep resistance and very good chemical resistance. This combination of properties make it an ideal material for machining bushings and bearings that require no startup or running lubrication. Ertalyte TX has FDA and USDA compliance and is ideal for applications in food packaging and processing equipment. Ertalyte TX shapes offer dimensional stability, wear resistance, and low-friction characteristics superior to those properties of competitive filled polyethylene terephthalate polymers.
    • Excellent replacement for full-strength Delrin® AF, when parts require food contact.
    • Standard Sheet Size: 24" x 39.4"
    • Fluorosint® 207's unmatched dimensional stability, excellent creep resistance and white color uniquely position this material to serve FDA regulated applications. It is non-permeable in steam and complies with the FDA's regulation 21 CFR 175.300. Its relative wear rate is 1/20 the rate of PTFE below 300°F (150°C) making it an excellent choice for aggressive service bearings and bushings.

      Fluorosint is Now Available in 5 Grades:
    • Fluorosint® 207 - Lowest Coefficient of Friction of all Fluorosint Grades
    • Fluorosint® 500 - Exceptional Dimensional Stability for Precise Tolerance Control
    • Fluorosint® HPV - Most Wear Resistant Fluorosint Grade - Outlasts Low-tech PTFE Based Materials
    • Fluorosint® 135 - Superior Performance Grade For Stability In Extreme Conditions
    • Fluorosint® MT-01 - Ultra-High Performance Fluorosint Grade For Stability At Elevated Temperature
    • Fluorosint® HPV PTFE - Most Wear Resistant Fluorosint Grade - Outlasts Low-tech PTFE Based Materials
      FDA-compliant Fluorosint HPV is a mica-filled high-performance bearing grade that can deliver a pressure velocity (PV) performance improvement of more than 40 per cent over other PTFE materials according to in-house tests conducted by Quadrant. Parts made of Fluorosint HPV can withstand higher loads and velocities while delivering better wear resistance, enabling the part to last longer compared to existing FDA-compliant PTFE-based materials. The product was specially developed to meet the demands of high-performance bearing applications where other, low-technology PTFE formulations would exhibit premature wear or not perform adequately. These characteristics, together with FDA compliance for food and pharmaceutical applications, open up interesting new options for engineers and manufacturers. Simply put, parts machined from Fluorosint HPV last longer than those made from many of the alternative filled PTFE materials on the market today. Fluorosint HPV can replace bronze, steel and powdered metal parts and deliver performance gains in wear life and system performance. Typical applications include thrust washers, wear guides, seals and food processing and preparation equipment.

      FDA compliant Fluorosint HPV PTFE is a high performance bearing grade of Fluorosint - optimized for high PV and very low "K" or wear factor. Fluorosint HPV PTFE was developed for bearing applications where other, low-tech PTFE formulations exhibit premature wear or simply cannot perform. FDA compliance gives food and pharmaceutical equipment manufacturers new design options and all benefit from its excellent load bearing and wear characteristics.
    • Fluorosint® 135 is a PTFE material designed to provide the lowest coefficient of friction and deformation for seals, bearings, and washer applications. Designed to improve the performance of compressor piston rings, rider bands, and packaging sets, Fluorosint 135's extremely competitive pricing allows companies to guard against expensive equipment failure and ensure maximum production, longevity, and profitability.

      Competitive Advantage:
    • Quadrant's Fluorosint® product family is not the same old typical PTFE compound. Fluorosint® is well known for its strong ability to out perform where all other compounds fall short. May it be the continuous use temperatures up to 500° F, improved deformation under load, lowest coefficient of friction or the low uniform coefficient of linear thermal expansion, Fluorosint® simply performs.

    • Fluorosint® 135 blend offers high performance at an extremely competitive price position. A perfect blended material which provides extreme performance for seals, bearings and wear applications. The lowest coefficient of friction material along with low deformation provides superior performance over typical filled PTFE compounds.

      Application Highlights
    • Compressor, Pump and Valve wear parts
    • Seals, bearings, thrust washers and seats
    • Insulating blocks and fixtures in diagnostic equipment
    • Compressor Piston Rings, Rider Bands & Packing Sets
    • Lubricated or Non-lube dry running applications
    • Typical Air, Hydrogen, Nitrogen, Refrigerant gas service
    • Service temperatures of 450°F / 232°C
    • Increased part life and improved performance
    • Applications in Chemical Processing, Medical, Aerospace, and Food Market
    • Fulton™ 404 is a PTFE filled acetal similar to full-strength Delrin® AF. This material contains a full 20% PTFE filler. Recommended for customers who require the performance of a full-strength Delrin AF100 or AF500, but require black color instead of brown.
    • Color: Black
    • Special Order Only - Minimum Order & Lead-Time Apply
    • Isoplast® urethane resins are high tensile strength, chemically resistant resins originally developed for medical use. They are available in long glass fibre-filled grades. Isoplast® combines the toughness and dimensional stability of amorphous resins with the chemical resistance of crystaline materials. The long fibre reinforced grades are strong enough to replace some metals in load bearing applications.
    • High tensile strength
    • Chemically resistant
    • Excellent load bearing capability
    • MC 901 (Nylatron MC901) Heat stabilized nylon offering long-term thermal stability to 260ºF. It is blue in color and used in a variety of bearing and structural applications such as wheels, gears, and custom parts.

      MC 901 has a better impact strength and fatigue resistance compared with other cast nylons in the range. It has proved an outstanding material for large gears, racks & pinions, successfully replacing phosphororous bronze and cast iron in many applications.

      Proven Applications:
      Port Cap - MC® 901 is custom cast to size saving fabrication time and money in a port cap and diffuser nozzle application. It also weighs only 1/7 the former parts making parts easier to handle and install. (Prior material: Stainless Steel)
    • Meldin® 2000 Series: 2001, 2021, 2030, 2211
    • Note: Meldin 2001 has been replaced by Meldin 6001
      Principal Features of Meldin® 2000
      Excellent Tensile Strength and Elongation
      Meldin® 2000 materials exhibit superior tensile strength and elongation properties, even at elevated temperatures, providing the mechanical integrity necessary for the most demanding applications.

      High Compressive Strength
      With an ultimate compressive strength of over 40,000 psi and a usable limit of 34,000 psi at 10% strain, Meldin® 2001 provides the highest resistance to compressive failure of any of the Meldin 2000 compositions. The additional formulations, however, also offer excellent compressive properties.

      High Modulus
      Meldin® 2000 materials have inherently high moduli and yield points in tension, compression, and flex. These combined features provide non-brittle materials for use in applications where extreme rigidity is essential.

      Superior Creep Resistance
      These materials all display minimal deformation under load. Meldin® 2030 provides additional ductility and conformability without sacrificing load carrying capacity when a sealing surface is required. These characteristics allow for dry-running bearing operation at high PVs and high-static loading without concern for deflection.

      Superb Dimensional Stability Meldin® 2000 products have no observable melting point. This feature, combined with an extremely low thermal expansion, high resistance to deformation under load, and low hysteresis, provides excellent dimensional stability. Even under the most severe conditions of harsh chemicals and temperature extremes, Meldin® 2000 retains its dimensional quality and functionality.

      Balanced Electrical Properties
      Both Meldin® 2001 and Meldin® 2030 have high dielectric strength, a stable dielectric constant, and very high volume and surface resistivity. Meldin® 2001, with its balance of physical and electrical properties, is ideal for stationary electrical insulating applications. Bearings made of Meldin® 2030 provide dry self-lubrication in addition to electrical insulation.

      Low Outgassing
      In independent testing to ASTM R595, Meldin® 2000 exhibited remarkably low outgassing. Other than absorbed water, Meldin® 2000 materials showed negligible mass loss and collectible condensables. This feature allows for trouble-free, clean operation in ultra-high vacuum environments.

      Low Friction, High Resistance to Wear
      Meldin® 2021, Meldin® 2211, and Meldin® 2030 bearing grades are all capable of carrying high loads at temperature extremes. Specially designed for optimum friction and wear properties, these Meldin® products provide smooth interaction and zero abrasion when operating against both ferrous and non-ferrous mating surfaces.
    • Meldin® 2030 (brown color)
      Principal Features of Meldin® 2000 Series Products:
      Excellent Tensile Strength and Elongation
      Meldin® 2000 materials exhibit superior tensile strength and elongation properties, even at elevated temperatures, providing the mechanical integrity necessary for the most demanding applications.

      Superior Creep Resistance
      These materials all display minimal deformation under load. Meldin® 2030 provides additional ductility and conformability without sacrificing load carrying capacity when a sealing surface is required. These characteristics allow for dry-running bearing operation at high PVs and high-static loading without concern for deflection.

      Balanced Electrical Properties
      Both Meldin® 2001 and Meldin® 2030 have high dielectric strength, a stable dielectric constant, and very high volume and surface resistivity. Meldin® 2001, with its balance of physical and electrical properties, is ideal for stationary electrical insulating applications.
    • Bearings made of Meldin® 2030 provide dry self-lubrication in addition to electrical insulation.

      Low Friction, High Resistance to Wear
      Meldin® 2021, Meldin® 2211, and Meldin® 2030 bearing grades are all capable of carrying high loads at temperature extremes. Specially designed for optimum friction and wear properties, these Meldin® products provide smooth interaction and zero abrasion when operating against both ferrous and non-ferrous mating surfaces.
    • Meldin® 7001 Unfilled Polyimide Parts and Shapes. Meldin 7001 Rods & Plates offer superior mechanical properties & high chemical resistance. Meldin is ideal for electrical and thermal insulating applications. More ductile than ceramics, and lighter weight than metals, Meldin® 7001 is an excellent choice for structural parts in aerospace and other applications where metal replacement is desirable. In Semiconductor Wafer Processing applications, the plasma etch rate of Meldin® 7001 is 10% to 20% lower than Vespel® SP-1 providing superior performance over time. (contact us for complete details). For IC Test Sockets & Probe Test Heads, Meldin® 7001 is also an excellent replacement for Vespel® SP-1. Meldin 7000 products feature Continuous Operational Temperatures up to 550ºF (260ºC) and Intermitting Operation up to 900ºF , while holding tight tolerances of ±0.001 in. on both ODs and IDs. Meldin 7001 is suitable for high-temperature structural, high-purity semiconductor, & plasma welding applications.
    • Meldin Plates are Compression Molded & Meldin Rods are Isostatically Molded (ISO)
    • Meldin DF Parts are Direct Formed. (contact us for custom quotes)
      Typical Applications:
    • Wafer Clamping Rings, IC Test Sockets & Nests, Plasma Torch Tips, Bearings, Seals, Insulators, Thrust Washers
    • Meldin® 7003 includes 15% molybdenum disulfide lubricating filler for wear applications that operate in a vacuum or in very dry conditions where graphite actually becomes abrasive. Typical applications of Meldin 7003 include seals, bushings, bearings, gears, and other wear surfaces in outer space, ultra-high vacuum or dry gas applications.
    • Made in standard 12" x 12" (305mm x 305mm) plates, or 10" x 10" (254mm x 254mm) plates up to 2" (50.8mm).
    • Made in Standard 37" (940mm) Long Rods up to 3.25" (82.5mm) diameter.
    • Now available in Isostatically Molded Rods, as well as standard Compression-Molded Plates
    • MELDIN® 7021, Polyimide with 15% by Weight Graphite Filler (comparable to Vespel SP-21 polyimide).
      Our self-lubricating grade, MELDIN® 7021, has 15% by weight graphite fillers, encapsulated by the base polyimide resin. With its low coefficient of friction and high heat resistance, MELDIN® 7021 provides our customers the best all-around choice for high temperature bearings, seals, and other low-wear applications.

      Application Profiles:
    • Meldin 7021 Aircraft Engine Vane Bushing
      Meldin 7021 self-lubricating polyimide materials meet or exceed the most stringent requirements for aerospace applications. Backed up by third-party independent testing, the Meldin 7021 material grade provide our customers consistent mechanical and performance properties for aircraft airframe systems such as landing gear and fuselage components, as well as jet engine parts such as pads, bumpers, washers, seals, and bearings.


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