SKU: 10490997719

Ronstan Orbit Series 55 Fiddle Becket Block w/ Cleat & Swivel Head

Sale price$119.80 Regular price$133.11
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Description

Ronstan Orbit Series 55 Fiddle Becket Block w/ Cleat & Swivel HeadProduct Description Ronstan Orbit Series 55 Fiddle Becket Block w Cleat & Swivel Head Features: Ultra Lightweight Low friction 2 stage Orbital ball bearing system Highest working load in its class Low profile and compact High performance cleating Sheave 2 5 32 + 1 3 8 in. (55 + 35mm) Max. Rope 3 8 in. (10mm) Max. Cable in (mm) Pin in. (mm) M. W. L. 110 lb. (500 kg.) B. L. 2200 lb. (1000 kg.) Weight 8. 4 oz. (237 g) Product Information Lightweight

Product Description

Ronstan Orbit Series 55 Fiddle Becket Block w/ Cleat & Swivel Head

Features:

  • Ultra Lightweight

  • Low friction 2-stage Orbital ball bearing system

  • Highest working load in its class

  • Low profile and compact

  • High performance cleating

    Sheave Ø - 2 5/32 + 1 3/8 in. (55 + 35mm)

    Max. Rope Ø - 3/8 in. (10mm)

    Max. Cable Ø - in (mm)

    Pin Ø - in. (mm)

    M.W.L. - 110 lb. (500 kg.)

    B. L. - 2200 lb. (1000 kg.)

    Weight - 8.4 oz. (237 g)

    Product Information

    Lightweight

    Kilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world’s lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimises the mass of the inactive return race and hub.

    Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.

    Multi-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.

    Highest working load in its class

    The orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximises load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range.

    The floating sheave and bearing system is supported by a fibre-reinforced load frame. The design was computer modelled to be stress optimised. The Dyneema® Link is produced from FSE Robline SK75 fibre, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.

    Applications:

  • Mainsheet systems on dinghies, sportsboats and small keelboats to 9m (30ft)

  • Spinnaker sheets on dinghies, sportsboats and small keel boats to 9m (30ft)

  • Halyard, Vang and Backstay application on boats to 8m (26ft)

  • Control line applications on larger yachts

    Materials:

  • Ball bearings - High compression strength carbon black Acetal

  • Stage 2 bearing - Carbon fibre reinforced, PTFE impregnated Nylon

  • Frame/Cheeks - Toughened, glass fibre reinforced Nylon

  • Rope Link: UV stabilised, multi-strand impregmented SK75 Dyneema®
  • Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 10490997719

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    AmazonCustomer
    Dallas, US
    ★★★★★ 5
    Good Stuff
    Size: 20.3 Fl Oz (Pack of 1)
    Shipped property, no leaks.
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    Reviewed in the United States on January 19, 2026
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    David Scott
    Waukegan, US
    ★★★★★ 5
    It really works and less expensive than Olay
    Size: 20.3 Fl Oz (Pack of 1)
    Wonderful anti wrinkle facial cream!
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    Reviewed in the United States on August 17, 2025
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    Maria Perales
    Carnegie, US
    ★★★★★ 5
    Feels great. Would buy again.
    Size: 20.3 Fl Oz (Pack of 1)
    I really like the way it feels. I have dry skin and itmade it much nicer and it lasted a couple of days where I had not used it again and it still flt moist and looked great on skin.
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    Reviewed in the United States on August 8, 2025
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    Samlaw100
    Birmingham, US
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    All time favorite
    Size: 20.3 Fl Oz (Pack of 1)
    I love this lotion. It never feels heavy, or sticky. It has a nice mild cocoa smell, not overpowering.
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    Reviewed in the United States on October 14, 2025
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    E.S
    Dallas, US
    ★★★★★ 5
    It moisturizes for hours, and it's concentrated, so a small amount covers my entire face
    Style: Jar, Style: Jar
    I have severe atopic dermatitis, and my dermatologist recommended this cream to prevent aging, since my condition prevents me from using just any product. I tested it on a small area for a week and had no allergic reaction, so now I'm using it on my face. I feel like it moisturizes for hours, and it's concentrated, so a small amount covers my entire face. The box arrived slightly damaged, but the contents were not; I suppose the fault lies with the shipping company.
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    Reviewed in the United States on March 30, 2026

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