SKU: 91618520893

Ronstan Series 40 Orbit Single BB Block w/ Cleat & Swivel

Sale price$123.64 Regular price$137.38
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

Ronstan Series 40 Orbit Single BB Block w/ Cleat & SwivelSeries 40 Orbit Single BB Block with Cleat & Swivel 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

Series 40 Orbit Single BB Block with Cleat & Swivel

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.: 880 lb.
  • B. L.: 1760 lb.
  • Weight: 6.2 oz.

Manufacturer Part Numbers: RF48120
GRP:WRO
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: 91618520893

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Vickie Dovel
Draper, US
★★★★★ 5
Easy to put together
Color: Grey, Size: Wheel-6 Panel
Love them
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Reviewed in the United States on December 17, 2025
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OkieDokie
Massapequa, US
★★★★★ 5
Stable, solid, and versatile!
Color: Black, Size: 8 Panel-176'' Wide, Color: Black, Size: 8 Panel-176'' Wide
Exceeded my expectations. Easy, but tedious to assemble. That said, it’s solid, well made, and will last. You can stand it up in a straight line without concern it will fall over. No need to fold it like an accordion for stability. Helped me separate my garage gym from the kids bikes, shelving, paint, tools, and typical garage stuff.
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Reviewed in the United States on November 13, 2025
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Magical M
Omaha, US
★★★★★ 5
Awesome !!
Color: Black, Size: 8 Panel-176'' Wide
This Divider is absolutely as advertized and works perfectly !! The quality is outstanding and the set up is easy to understand. Perfect !!
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Reviewed in the United States on March 24, 2026
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MLB
Natrona Heights, US
★★★★★ 5
Privacy with a dual purpose.
Color: Black, Size: 6 Panel-132'' Wide
While temporarily staying with family or friends, this portable wall offers some privacy and separation of personal space. It is easy to assemble and adjusts to different sizes by ordering different numbers of panels. While it provides a wall on one side, it serves as a place to add a little design and color to the inner space, as it is strong enough to hang a small quilt using clamps on the top rails. It also serves as a great hat rack for my husband’s many ball caps. I plan to continue to use it as a room decider, and to hide stored items from view. It truly makes the most of a small space.
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Reviewed in the United States on September 19, 2024
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Connie Langan
Battle Creek, US
★★★★★ 5
This product is not see through!!!
Color: Black, Size: 8 Panel-176'' Wide
This separator is excellent for room dividing, I used it to make another room in my house and it is great. You cannot see through this divider at all, it is perfect when ur creating another room
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Reviewed in the United States on May 30, 2025

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