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Ronstan Series 15 Ball Bearing Utility Block

  • Type: Single Block, Swivel Shackle Head, Material: Stainless Steel / Acetal
  • Safe Working Load: 260 lb
  • Maximum Line Size: 3/16"
  • Item #: 
    Model #: 
    Shipping Weight: 
    0.07 Lbs.
    List Price: 
    Status:    In Stock




    • Ronstan Series 15 blocks utilize stainless steel cheeks and precision molded Acetal sheave running on stainless steel ball bearings
      • Provides high performance & low friction
    • Applications: Dinghies, keel boat and small control lines on larger boats
      • Dinghy control lines
      • Vangs
      • Cunninghams and tweakers
      • Shock cord tensioning systems
      • Great leach and foot line turning blocks on sails as well as a purchase system for pipe berths
    • Lightweight durable construction
    • Economical
    • Maintenance free

    Click Here for a Data Sheet for this Product


    • Maximum Line Size: 5 mm (3/16") in diameter
    • Sheave Diameter: 5/8"
    • Safe Working Load: 260 lbs
    • Breaking Load: 880 lbs
    • Material:
      • Ball Bearing sheaves (UV stabilized Acetal Ball bearings)
      • Stainless steel Cheeks (Grade 316 stainless steel)
    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to


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