SKU: 34381210687

Ronstan Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head

Sale price$91.05 Regular price$101.17
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Description

Ronstan Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel HeadSeries 40 Ball Bearing Orbit Block Single Becket Cleat Swivel Head Features: Ultra Lightweight Low friction 2 stage Orbital ball bearing system Highest working load in its class Low profile and compact High performance cleating Lightweight Kilogram for kilogram of working load, BB and RT Orbit Blocks are the worlds lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of

Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head

Features:

  • Ultra Lightweight
  • Low friction 2-stage Orbital ball bearing system
  • Highest working load in its class
  • Low profile and compact
  • High performance cleating

Lightweight

Kilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world’s lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of the inactive return race and hub.

Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.

Multi-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.

Highest Working Load In It's Class

The orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximizes load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range.

The floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized.

Applications:

  • Mainsheet systems on spinnaker sheet on dinghies to 5m (16ft)
  • Spinnaker sheets on dinghies, sportsboats and small keel boats to 5m (16ft)
  • Halyard, vang and backstay applications on boats to 8m (26ft)
  • Control line applications on larger yachts

Materials:

  • Ball Bearings - High compression strength carbon black Acetal.
  • Stage 2 Bearing - Glass fibre reinforced, MoS2 impregnated Nylon
  • Frame/Cheeks - Toughened, glass fibre reinforced Nylon
  • Sheave - Carbon fiber reinforced, PTFE impregnated Nylon

Manufacturer : Ronstan
Manufacturer Part No : RF45130
UPC : 9316800455256
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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: 34381210687

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4.7 ★★★★★
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Senior bird
Belleville, US
★★★★★ 5
Easy of use
Format: Paperback
I created our living trust and wills with the package. Just follow the instructions, answer the questions, and you are done. For simple trust, I would recommend using the software.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
T
Verified Purchase
T. Wingate
Los Angeles, US
★★★★★ 4
If you order this kit verify that you receive the 2026 book
Format: Paperback
Good software that walks you through the steps to create your will, a trust, and a number of other necessary documents that you might want, or need. The book Amazon shipped was for 2025, not 2026, hence the one star subtraction. The code for the software in the book did not work, probably because it was over a year old. I wanted to get started and didn't want to go through the return process, so I contacted Nolo and they were great. They asked to see a copy of the invoice and once they confirmed it was for 2026 (during the call,) they provided the correct software. While I would have preferred the 2026 book, I suspected the 2025 was close enough, and the software will advise what has changed for anything I do.
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Reviewed in the United States on January 16, 2026
M
Verified Purchase
math_guy51
Bozeman, US
★★★★★ 5
All you need before talking to an attorney
Format: Paperback
Excellent tool. 👍👍👍👍🐼👍
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
S
Verified Purchase
sailorman
Fort Morgan, US
★★★★★ 3
Trust is not user-friendly
Format: Paperback
Could not get trust to work as needed. Software is not user-friendly. Nolo no help. Returned.
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Reviewed in the United States on March 22, 2026
K
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Kenneth Haselhorst
Bozeman, US
★★★★★ 5
Law
Format: Paperback
I have used this to build a Will and a Trust. Now I will take my papers to a lawyer and see if worked as expected. I think everything should be right but will wait and see. For now I give it 4 stars, but if a lawyer says it is all right, than 5 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026

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