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    Ronstan

    Ronstan Series 25 Ball Bearing Orbit Block - Becket Swivel Shackle [RF28100]

    Ronstan Series 25 Ball Bearing Orbit Block - Becket Swivel Shackle [RF28100]

    $23.38
    $27.51 $23.38
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    Product Description

    Series 25 Ball Bearing Orbit Block™ - Becket & Swivel Shackle

    Single sheave ball bearing block with becket hub and swivel shackle head.

    Series 25 Ball Bearing Orbit Blocks™, delivering superior strength, reduced weight, and exceptional performance for high-demand dinghy and small boat applications.

    Designed with competitive sailors and performance boats in mind, these compact 25mm blocks are engineered to achieve the highest possible strength-to-weight ratio. Featuring Ronstan’s renowned high compression strength acetal bearing system, the Series 25 BB Orbit Blocks™ are a lightweight yet durable solution, ideal for control line systems such as mainsheet and spinnaker sheet turning blocks, cunninghams, and cascading vangs on dinghies up to 4 meters.

    Each block has a stainless steel hub for versatile lashing attachments and through-sheave becket functionality, making them adaptable to a wide range of rigging setups. The hub accommodates up to 4mm (5/32") lashing and ensures maximum efficiency without compromising reliability.

    Features:

    • 2-stage ball bearing system.
    • Suits up to 8mm (5/16”) lines.
    • Hollow hub for becket take-off.
    • Lashing blocks suit up to 4mm (5/32”) lashing.

    Specifications:

    • Max. Rope diameter (in): 5/16
    • M.W.L. (lb): 500
    • Sheave diameter (in): 1
    • B.L. (lb): 990
    • Weight (oz): 0.6

    Applications:

    • Mainsheet and spinnaker sheet turning blocks on dinghies to 4m (13ft).
    • Control lines.
    • Cascading vangs.
    • Leech lines & cunninghams.

    Materials:

    • Frame/cheeks: Toughened, glass fibre reinforced nylon.
    • BB Sheave and balls: high compression strength acetal.

    WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

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    Family owned and operated, which is a huge plus for me! I was browsing the website looking at Garmin gps units, their prices are great and competitive! I reached out to them to ask where I might find a hard to find lower unit part I was needing. They had it in stock! If they don’t have something in stock, they will get it asap! 100% recommend and I will buy from them again in the future!

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