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ASTON GRF GUIDE RING

    GRF Guide Rings
    GRF type guide ring was developed to replace traditional guides in bronze in the hydraulic cylinders. Guide the stem or the piston and avoids metallic contact with the cylinder in the presence of radial forces acting in direction perpendicular to the movement. Since the GRF is obtained by turning from sleeve, the thickness is extremely precise for high accuracy in driving. The material used for this guide is a phenolic resin impregnated with natural cotton, characterized by a high resistance to heavy loads, stiffness, hardness and stability at high temperatures.
     
    Features
    • Excellent resistance to heavy loads
    • High driving precision
    • Good resistance to the “diesel effect”
    • Long service life
    • Suitable for both rod and piston guides
    • Simple assembly and groove design
    • Low friction
    • Good mechanical stability at highs temperatures
    • Easy to install
    MATERIAL
    TypeDesignation
    Phenolic resin in cotton fabricPHENOLITE
    FIELD OF APPLICATION
    SpeedTemperature
    ≤ 1 m/s-40°C÷+120°C
    SURFACE ROUGHNESS
    Housing surfaceRa ≤ 0.3 umRt ≤ 2.5 um
    Static surfaceRa ≤ 2 umRt ≤ 10 um