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  • Ronstan Series 25 Ball Bearing HHL Lashing Orbit Block [RF28109HL]

    • Ronstan Series 25 Ball Bearing HHL Lashing Orbit Block [RF28109HL]

    Ronstan

    MSRP: $104.90
    $89.16
    (You save $15.74 )
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    SKU:
    BSM-110655
    UPC:
    9316800661930
    Width:
    2.00 (in)
    Height:
    1.00 (in)
    Depth:
    4.00 (in)
    MPN:
    RF28109HL
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    Product Description

    Series 25 Ball Bearing HHL Lashing Orbit Block™

    Single sheave ball bearing high load block with becket hub option and lashing head.

    The Series 25 Ball Bearing Orbit Blocks™ deliver 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 metres.

    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.

    The range also includes a High Load (HHL) variant – the RF28109HL – which is equipped with a Grade 2205 stainless steel sheave and bearing race, paired with Grade 304 stainless steel ball bearings. These HHL blocks are purpose-built for high-load applications and are increasingly in demand for modern performance and foiling boats using small-diameter lines to carry significant loads.

    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): 880
    • Sheave diameter (in): 1
    • B.L. (lb): 2650
    • Weight (oz): 1.2

    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.  
    • HHL Sheave and bearing race: Grade 2205 stainless steel with Grade 304 stainless steel ball bearings.

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    Custom Field

    MPN RF28109HL

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