Skip to content

ASTON GRB GUIDE RING

    GRB Guide Rings
    GRB type guide ring was developed to replace the traditional guides in bronze in hydraulic cylinders. Drive the stem or the piston and avoids metal contacts with the cylinder in presence of radial forces acting in a direction perpendicular to the movement. Since the GRB is obtained by processing mechanical, the thickness is extremely precise for high accuracy in driving. The material used for this guide ensures high speeds, low friction and, thanks to the its chemical resistance superior to that of all thermoplastics, a wide compatibility with almost all fl uids.
     
    Features
    • Low static and dynamic friction (also in absence of lubrication)
    • High permissible speeds
    • No “stick-slip” tendency
    • High driving precision
    • Dampens radial vibrations
    • High compatibility with almost all fluids
    • Simple assembly and groove design
    • Good mechanical stability at highs temperatures
    • Easy to install
    • Low resistance to radial loads
    MATERIAL
    TypeDesignation
    Polytetrafluoroethylene PTFE + BronzeSEALFLON + Bronze
    FIELD OF APPLICATION
    SpeedTemperature
    ≤ 5 m/s-50°C÷+200°C
    SURFACE ROUGHNESS
    Housing surfaceRa ≤ 0.3 umRt ≤ 2.5 um
    Static surfaceRa ≤ 1.6 umRt ≤ 6.3 um