• Hercules Roller Derby Stuffing Box Cap
     

    Our Hercules™ Roller Derby Stuffing Box Cap was designed to reduce polished rod vibrations and eliminate problems caused by misaligned polished rods.

     

    Description

    Replace stuffing box cap with the split or solid roller derby. Simple design – no adjustments necessary

    • Available in solid or split design
    • Reduce or eliminate problems caused by misaligned polished rods
    • Especially effective for long stroke jacks

     

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