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Ronstan Series 40 All Purpose Deck Organizer - 3 Sheave - RF41831

$85.16 $100.18
SKU: 70609

Manufacturer Part #: RF41831

Series 40 All Purpose Deck Organizer - 3 Sheave


  • Lightweight design with cheek cut outs for easy bearing maintenance
  • Through hub mounting for maximum strength
  • All-purpose bearing system provides maximum static load capacity
  • Mount with 5 x 6mm (1/4”) fasteners, not supplied
  • Length - 164mm (6 15/32")

Deck organizers are an effective means of deflecting halyards and other control lines to winches, stoppers and cleats. Sheaves are made from impact resistant Acetal. The deck organizers have alloy cheeks, flared at rope entry and exit points to minimize chafing. All sizes can be stacked to create double versions - MWL of the top sheaves must not exceed 50% of the total block load rating.


  • Line deflection on larger yachts (depending on load and angle of deflection)
  • Halyard and control line deflection on boats to 11m (36ft)


  • Cheek plates: Anodized aluminium
  • U.V. stabilized Acetal sheaves
  • Grade 316 stainless steel hubs

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Reviews (1)

Customer Reviews

Based on 1 review
Charles R Brooks

As advertised, however, anything involving blocks, sheaves and lines should have more dimensions in the listing. The line diameter is the most important descriptor.



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