SKU: 49062147656

Ronstan Series 40 Orbit BB Cheek Block [RF48151]

Sale price$52.32 Regular price$58.13
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

Ronstan Series 40 Orbit BB Cheek Block [RF48151]Series 40 Orbit BB Cheek Block 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

Series 40 Orbit BB Cheek Block

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.
  • M.W.L.: 880 lb.
  • B. L.: 1760 lb.
  • Weight: 1.2 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: 49062147656

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Clint
Port Orchard, US
★★★★★ 5
Good brand
Size: 300A Fuse Holder
Good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2025
J
Verified Purchase
Jwick
Waukegan, US
★★★★★ 5
Good product
Works as should and shows correct voltage.. double checked with several multi meters. And has been running my 4000, watt amp for almost 6 months now with no problem
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 18, 2025
C
Verified Purchase
chris
Belleville, US
★★★★★ 5
Its ok but falls out
Works good but not connected to the unit so it falls out
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
C
Verified Purchase
Cliente de Amazon
Carnegie, US
★★★★★ 5
Excelente
Excelente
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Reviewed in the United States on May 31, 2026
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Verified Purchase
Ivan Santana
Pawtucket, US
★★★★★ 4
Functions. No trigger,need relay for car install
Functions,but will not turn off. No remote wire,just positive & negative. Need relay to install correctly to use on-board fuse. Or connect to remote only to view voltage use. No instructions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2025

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