SKU: 66403482794

Ronstan Series 40 Orbit BB Double Block w/Becket Swivel Shackle

Sale price$90.09 Regular price$100.10
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Ronstan Series 40 Orbit BB Double Block w/Becket Swivel ShackleSeries 40 Orbit BB Double Block with Becket & Swivel Shackle The Series 40 ball bearing Orbit Blocks provides the perfect balance of strength, performance, and reliability. They offer class leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks the perfect balance of

Series 40 Orbit BB Double Block with Becket & Swivel Shackle

The Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability.

As well as traditional single swivel blocks, the range includes single and double sheave lashing or soft attachment options through to multiple sheave blocks including those with quad and quin sheaves. The range is highly versatile allowing a multitude of possible systems right up to a 12:1 purchase mainsheet system for off-the-beach performance catamarans.

Series 40 Orbit Blocks™ are fitted with our carbon-reinforced C-Cleat™ for secure rope holding with low entry and exit efforts, and fairleads for fast action from any angle. Cleat arms are made from stainless steel and adjustable for setting your preferred cleating angle.

Ball Bearing versions incorporate our 2-stage bearing system using ball bearings to minimize friction and a secondary full-contact bearing to maintain low friction across the full working load range.

High Load versions are designed specifically for any application where high dynamic or static loads are expected. They feature a high-strength grade 2205 stainless steel sheave & hub together with a triple bearing race to maintain low friction at very high loads.

Features:

  • Class-leading dynamic and static load ratings
  • Lightweight, yet strong. Toughened, glass fiber reinforced nylon replaces stainless steel straps used in our traditional utility blocks
  • Low friction 2-stage ball bearing system for efficient and effortless trimming
  • Soft attachment, lashing and traditional swivel shackle head options
  • Low profile and compact
  • High performance cleating

Applications

  • Mainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans and sportsboats to 8m (26ft)
  • Halyard, vang and backstay applications on boats to 9m (30ft)
  • Control line applications on larger yachts

Specifications:

  • Sheave Ø: 1-9/16 in.
  • Max. Rope Ø: 3/8 in.
  • Pin Ø: 5/32"
  • M.W.L.: 1320 lb.
  • B. L.: 2650 lb.
  • Weight: 4.6 oz.
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: 66403482794

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Marie
Alexandria, US
★★★★★ 5
Casual dress shirt
Size: Medium, Color: Powder Blue Vertical Stripe
I purchased a shirt for my fiancé for vacation wearing to church and just upscale casual wear around town and he loves it. He washed it and dried it and it looks good as new. He also thinks that it runs true to size and is comfortable to wear. The only note is that the fabric is a bit more thick than the other dress shirts that Amazon offers so it’s not optimal if the weather is very hot, otherwise the look is great
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Reviewed in the United States on May 16, 2026
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Marcus H.
Chelsea, US
★★★★★ 5
Very nice
Size: Medium, Color: Pale Pink
Fits great, looks great and feels great. The material is much softer and structured than it appears.
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Reviewed in the United States on June 4, 2026
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Amazon Customer
West Palm Beach, US
★★★★★ 4
Pretty good.
Size: XX-Large, Color: Pale Pink
I've bought this before, the shirt is kind of stretchy and kind of thick. It's nice quality when you get it at some discount. Beware that this is slim fit so get one size up if you want to be comfortable.
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Reviewed in the United States on March 29, 2026
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Richard D Mccombs
Boise, US
★★★★★ 5
Comfort
Size: Medium, Color: Light Grey Vertical Stripe
Good quality, good fit and great price. I don't think you'll go wrong with the purchase.
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Reviewed in the United States on April 3, 2026
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Rad B
Grantham, US
★★★★★ 5
PERFECT FOR THE SUMMER
Size: XX-Large, Color: Pale Pink
Pleasantly surprised with this shirt. More pink than in the pic. The material is a bit thicker than expected (like a thin canvas) but breathable and perfect for the summer. Perfect fit for my 240ish build (2XL). Highly recommended.
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Reviewed in the United States on May 31, 2026

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