SKU: 67862741560

Ronstan Series 40 BB Double Block w/ Swivel Head

Sale price$54.83 Regular price$60.92
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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29

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Description

Ronstan Series 40 BB Double Block w/ Swivel HeadProduct Description Ronstan Series 40 BB Double Block w Swivel Head Sheaves running on Acetal or Torlon ball bearings provide high performance & low friction. The 2 stage ball bearing system provides consistent performance over the full load range. Features: Low friction Acetal or Torlon bearing system Lightweight Cheek cut outs for easy bearing maintenance Features a swivel shackle head for full 360 rotation Specifications: Sheave 1 9 16 in. (40mm)

Product Description

Ronstan Series 40 BB Double Block w/ Swivel Head

Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.

Features:

  • Low friction Acetal or Torlon® bearing system

  • Lightweight

  • Cheek cut-outs for easy bearing maintenance

  • Features a swivel shackle head for full 360° rotation

    Specifications:

  • Sheave Ø - 1 9/16 in. (40mm)

  • Max. Rope Ø - 3/8 in. (10mm)

  • Max. Cable Ø - in (mm)

  • Pin Ø - in. (mm)

  • M.W.L. - 1100 lb. (500 kg)

  • B. L. - 2650 lb. (1200 kg)

  • Weight - 4.7 oz. (134 g)

    Applications:

  • Mainsheet

  • Halyard

  • Vang

  • Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)
  • 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: 67862741560

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    4.7 ★★★★★
    Based on 7 reviews
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    Verified Purchase
    platonic
    New York, US
    ★★★★★ 5
    Solid translation, deep dive into ancient texts
    Format: Paperback
    The layout is clean, and the annotations help a lot, especially if you’re new to these books. Some of the content is pretty wild—giants, watchers, calendars—but that’s what makes it fascinating. This edition is great for both research and personal exploration. Just don’t expect a casual read—these are intense, ancient writings with a lot of mystery.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2025
    M
    Verified Purchase
    Maksim
    Birmingham, US
    ★★★★★ 5
    Unlike anything I’ve read before
    Format: Paperback
    I wasn’t sure what to expect going into this, especially with the mention of Ina Quant, but it turned out to be a deeply fascinating mix of texts. The Three Jubilees were incredibly detailed and offered timelines and insights I’d never seen in any other scripture. Jasher was a standout—familiar stories but with so much more context. The modern English translation made it all feel accessible without losing the ancient feel. I’m glad the annotations were there too—they really helped make sense of the more complex parts.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 25, 2025
    A
    Verified Purchase
    Adeliia Rakhmatullina
    Louisville, US
    ★★★★★ 5
    This filled in so many gaps
    Format: Paperback
    As someone who grew up reading the Bible, this book was a revelation. Jubilees and Jasher gave context and depth to stories I thought I already understood, and Enoch’s visions took everything to another level. I really appreciated how all five books were included in one volume—well-organized, easy to navigate, and supported with helpful notes. It’s a serious study tool, but also a compelling read.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 27, 2025
    T
    Verified Purchase
    Tomas
    Fort Morgan, US
    ★★★★★ 5
    Complete Edition of Books
    Format: Paperback
    Really good reading material
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026
    V
    Verified Purchase
    Vladyslav
    Massapequa, US
    ★★★★★ 5
    Felt like opening a long-lost vault
    Format: Paperback
    I had no idea what I was getting into when I picked this up. These writings are so different from the Bible I grew up with—more mystical, more cosmic, and honestly more human in some parts. The modern English translation helped a lot, because even with that, it takes time to digest. Jubilees really surprised me—it’s like reading Genesis with a behind-the-scenes commentary. And Enoch III? That one goes wild. This book isn’t casual reading, but if you’re spiritually curious or love ancient texts, it opens up a totally different lens on early beliefs.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 24, 2025

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