SKU: 6694981802

Ronstan RF55111 Series 55 Orbit Single Block with Becket

Sale price$48.83 Regular price$54.25
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Description

Ronstan RF55111 Series 55 Orbit Single Block with BecketRonstan RF55111 Orbit Block with becket. Designed for applications where weight is of paramount importance. The securing loop is easily changed and we suggest that you use either a forged eye or shackle to secure the block as pressed steel fittings can be sharp and will prematurely wear the rope mounting. General Range Information: Ultra Lightweight Low friction 2 stage Orbital ball bearing system Highest working load in its class Easily fitted and

Ronstan RF55111 Orbit Block with becket. Designed for applications where weight is of paramount importance. The securing loop is easily changed and we suggest that you use either a forged eye or shackle to secure the block as pressed steel fittings can be sharp and will prematurely wear the rope mounting.

General Range Information:

  • Ultra Lightweight
  • Low friction 2-stage Orbital ball bearing system
  • Highest working load in its class
  • Easily fitted and securely retained Dyneema Link head
  • Low profile and compact
  • High performance cleating
  • Sheave Diameter 55mm

Technical:

  • Sheave Diameter 55mm
  • Maximum Rope Diameter 10mm
  • Maximum Working Load 500kg
  • Breaking Load 1000kg
  • Weight 75g

Materials:

  • Ball bearings - High compression strength carbon black Acetal
  • Stage 2 bearing - Carbon fibre reinforced, PTFE impregnated Nylon
  • Frame/Cheeks - Toughened, glass fibre reinforced Nylon
  • Rope Link: UV stabilised, multi-strand impregmented SK75 Dyneema

Applications:

  • Mainsheet systems on dinghies, sportsboats and small keelboats to 9m (30ft)
  • Spinnaker sheets on dinghies, sportsboats and small keel boats to 9m (30ft)
  • Halyard, Vang and Backstay application on boats to 8m (26ft)
  • Control line applications on larger yachts
We recommend using the RF613S shackle to securely attach the block to the existing deck eye on your boat. This helps the block maintain maximum freedom of movement and reduces the risk of wear on the Dyneema loop due to sharp edges on the deck eye, then use the 8072 Rubber Boot to keep the block upright and provide a neat finish. See related items.

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: 6694981802

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Reviewed in the United States on May 6, 2026
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West Palm Beach, US
★★★★★ 3
Good watch, not incredibly durable for everyday use.
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A nice watch, the date feature and the glow in the dark were quite helpful. It lasted be about 6 months of regular use. Unfortunately it stopped keeping time (intermittent freezing) and the second hand fell off, I'm kinda disappointed with its durability. Unsure of the initial cause, I guess I hit something with my wrist.
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Reviewed in the United States on September 14, 2025
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Nick b.
Grantham, US
★★★★★ 5
Inexpensive good looking watch
Color: silver/glowing/green, Color: silver/glowing/green
Very nice looking watch
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Reviewed in the United States on May 16, 2026
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Whiting, US
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EXCELLENT WATCH FOR THE MONEY
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Reviewed in the United States on April 6, 2026
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DW
New York, US
★★★★★ 5
Fresh af
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Gorgeous watch. Classic, great quality. Highly recommend.
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