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  • Ronstan Series 40 Ball Bearing Block - Double - Swivel Head [RF40200]

    Series 40 Ball Bearing Block - Double - Swivel Head


    • Low friction Acetal or Torlon® bearing system
    • Lightweight
    • Cheek cut-outs for easy bearing maintenance
    • Features a swivel shackle head for full 360° rotation

    Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.


    • Mainsheet
    • Halyard
    • Vang
    • Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)