Heilbronn, Germany – GGB, formerly Garlock Bearings, has introduced its new EP™ series of injection-molded, solid-polymer plain bearings that provide excellent wear resistance and low friction over a wide range of both dry and lubricated operating conditions. Potential applications, including industrial, automotive, aerospace, off-shore, food processing, packaging equipment and others, generally are limited only by the material properties of the new bearings Made of a variety of thermoplastic resins with the addition of solid lubricant and reinforcing fibers, the bearings exhibit excellent dimensional stability, low coefficients of friction, high compressive strength and creep resistance, low thermal expansion and good thermal conductivity. Because wear performance is uniform, allowable wear is limited only by bearing wall thickness and mechanical constraints of the application. Below is a summary of the new EP™ series of bearings’ characteristics:
EP™
• Reinforced and modified polyamid 6.6T-based material
• Standard program is interchangeable with rolled bearings per DIN1494/ISO3547
• Recommended tolerances for fitted bearings: Housing H7, shaft h7-h9
EP12™
• Modified polyoxymethylene-based material
EP22™
• Modified polybutylenterephtalate-based material
• Good price/performance ratio
EP43™
• Reinforced and modified polyphenylensulfid-based material
• Good chemical/hydrolysis resistance
• Very low friction optimized for dry running conditions
• High dimensional stability
EP44™
• Reinforced and modified polyphenylensulfid-based material
• Good chemical/hydrolysis resistance
• Excellent performance in lubricated applications
• High dimensional stability
EP63™
• Reinforced and modified polyetheretherketone-based material
• High-temperature capability with low thermal epansion
• Optimized for dry running conditions
• High viscosity, mechanical strength
• High wear resistance in oscillating movements
• Good chemical/hydrolysis resistance
EP64™
• Reinforced and modified polyetheretherketone-Based material
• High-temperature capability with low thermal Expansion
• Good chemical/hydrolysis resistance
• Excellent performance in lubricated applications
• High viscosity, mechanical strength
• High wear resistance in oscillating movements
EP73™
• Modified polyamidimid-based material
• Irreversibly cross-linked
• High temperature capability with low thermal expansion
• High viscosity, mechanical strength
• Good chemical resistance
• High wear resistance in oscillating movements
EP79™
• Modified polyamidimid-based material
• Irreversibly cross-linked
• High temperature capability with low thermal expansion
• High viscosity, mechanical strength
• Good chemical resistance
• High wear resistance in oscillating movements
EP™ is available in standard cylindrical and flanged bearings, as well as special dimensions and shapes. EP22™, EP43™ and EP63™ are available as semi-finished parts.
All of the other EP materials are available by special order. For more information, contact germany@ggbearings.com.
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