Ronstan Series 40 Orbit BB Double Block w/Becket  Swivel Shackle [RF48210]
SKU: 79370522454

Ronstan Series 40 Orbit BB Double Block w/Becket Swivel Shackle [RF48210]

Sale price$90.09 Regular price$100.10
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Description

Ronstan Series 40 Orbit BB Double Block w/Becket Swivel Shackle [RF48210]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

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: 79370522454

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Sean
Natrona Heights, US
★★★★★ 5
Name holds true.
Size: Large Triple
Just bought my second set of these.. first set lasted my healer almost 4 years and are still together but starting to split at the smaller seams so you can’t play as aggressive as my dog would like. We bought the second set and now she has her second wind! She loves tugging and I love knowing this toy will last a good while especially with an active dog!
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Reviewed in the United States on January 4, 2025
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Customer Holly
Cuba, US
★★★★★ 5
My Aussie loves this bone!
This wishbone is so durable! My Australian shepherd is a big cheese and this is her go-to chew toy. It's a fave! She has spent HOURS chewing on this bone and it has held up super well. It has no smell but understand she can taste the flavor of it. I love having something she can chew on that is safe for her that she enjoys. Great value.
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Reviewed in the United States on May 10, 2026
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Mindi P
West Palm Beach, US
★★★★★ 5
Durable, Great Value Dog Bone!
We’ve ordered several of these that have lasted for months, and my dogs are still working on them. Months. That alone feels like a small miracle. Normally, chews last about 10 minutes. Not this one. This thing is built like it trained for battle. It keeps them busy, satisfied, and focused on something that is actually meant to be chewed. And the best part? It’s way more affordable in the long run. Instead of constantly buying new toys, chews, or replacing destroyed shoes, this one just keeps going. Definitely worth every penny and then some. If you have determined chewers, this is the chew/bone you’ve been looking for.
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Reviewed in the United States on February 18, 2026
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J.M.
Port Orchard, US
★★★★★ 5
Dog loves this
My dog absolutely loves the shape of these and will play with it for hours. The material is pretty durable too, though he is a big lab so over time chewed away the top nubs. Eventually tossed it at that point, but got great use out of it before. No bad smell and my pet really enjoys playing with it. It’s not too big either and is really easy to take with you on trips, etc. have bought multiple!
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Reviewed in the United States on April 17, 2026
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Chuck
Louisville, US
★★★★★ 4
Dog liked it, chewing cat did not
My dog liked it, but I actually got it for my cat that insists on chewing on everything. However, he refused to chew on this toy. He sniffed it once and walked away. So, for dogs I guess it's a decent chewy...
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Reviewed in the United States on February 24, 2026

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