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PARKER KA ROTARY SEAL

    KA Rotary Seal

    Descriptions

    The profile KA rotary sealing set consists of a fabric-reinforced rubber sealing part
    and two back-up rings to increase the stability and to prevent extrusion into the gap,
    especially for applications where eccentricity occurs.
    Due to the special design of the dynamic surface a „grease depot” will be built up
    retaining the lubrication film and avoiding dry operation.

    Features

    • Enhanced sealing performance in nonpressurized conditions.
    • Robust seal profile for harshest operating conditions.
    • Extreme wear resistance.
    • Insensitive to pressure peaks.
    • High temperature resistance in case of
    suitable compound selection.
    • Extremely high extrusion resistance.
    • Installation in closed and undercuthousings.

    Range of application
    Mainly for applications where the pressure alternates from one side of the seal to the
    other, such as pivots for rotating track rings, swivel joints, hose reels, and in machine
    tool hydraulics.

    Operating pressure

    ≤ 60 °C ≤ 400 bar
    ≤ 80 °C ≤ 315 bar
    ≤ 100 °C ≤ 250 bar
    Operating temperature -30 °C to +100 °C
    Sliding speed ≤ 0.2 m/s

    Recommendation for rotary transmissions: P ∙ v ≤ 50
    (For definition see catalogue „Hydraulic Seals”, chapter „Rotary seals”, introduc tion.)

    Compounds
    Standard compound for the sealing part is a NBR-based elastomer with fabric-reinforced dynamic surface (Z5011/Z5014). The back-up rings are made of a polyamidbased material.
    Installation
    The profile KA rotary sealing sets are designed to be snapped into closed grooves.
    Special versions for open grooves in endseal applications are available. During installation, first the sealing part must be installed, followed by the back-up ring. To avoid
    damaging the seal, sharp edges within the installation area should be removed.

    dDHL
    304267
    50627.58.5
    657767
    891068.59.5
    901061011
    901101011
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    1001201112
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    1251451213
    1301451011
    1301501011
    1401601213
    1601801011
    1802001011
    2002201011
    2002251516
    21023512.513.5
    2622921516