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Description
Ronstan Orbit Series 55 Fiddle Becket Block w/ Cleat & Swivel HeadProduct Description Ronstan Orbit Series 55 Fiddle Becket Block w 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 Sheave 2 5 32 + 1 3 8 in. (55 + 35mm) Max. Rope 3 8 in. (10mm) Max. Cable in (mm) Pin in. (mm) M. W. L. 110 lb. (500 kg.) B. L. 2200 lb. (1000 kg.) Weight 8. 4 oz. (237 g) Product Information Lightweight
Product Description
Ronstan Orbit Series 55 Fiddle Becket Block w/ 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
Sheave Ø - 2 5/32 + 1 3/8 in. (55 + 35mm)
Max. Rope Ø - 3/8 in. (10mm)
Max. Cable Ø - in (mm)
Pin Ø - in. (mm)
M.W.L. - 110 lb. (500 kg.)
B. L. - 2200 lb. (1000 kg.)
Weight - 8.4 oz. (237 g)
Product Information
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 minimises 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 its class
The orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximises 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 fibre-reinforced load frame. The design was computer modelled to be stress optimised. The Dyneema® Link is produced from FSE Robline SK75 fibre, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.
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
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®
Features:
Sheave Ø - 2 5/32 + 1 3/8 in. (55 + 35mm)
Max. Rope Ø - 3/8 in. (10mm)
Max. Cable Ø - in (mm)
Pin Ø - in. (mm)
M.W.L. - 110 lb. (500 kg.)
B. L. - 2200 lb. (1000 kg.)
Weight - 8.4 oz. (237 g)
Product Information
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 minimises 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 its class
The orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximises 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 fibre-reinforced load frame. The design was computer modelled to be stress optimised. The Dyneema® Link is produced from FSE Robline SK75 fibre, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.
Applications:
Materials:
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 569 reviews
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Product Reviews
★★★★★ 5
Easy to use
Color: Black
I don’t know how I lived without this device. Arthritic hands have made the job very hard. This has been a lifesaver. Don’t wait and get it now. It doesn’t hurt that it comes with some nice accessories.
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Reviewed in the United States on March 5, 2026
★★★★★ 5
Follow all the instructions
Color: Black
I really really like this product. Just be sure to read the directions about the charging required before first use. The instructions were simple and easy to understand when using a large bottle of wine. Be sure to hold the bottle securely or in may want to turn as the cart plunger goes down
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Reviewed in the United States on February 16, 2026
★★★★★ 4
Very good opener with some cheap attachments
Color: Black
This is a very good wine opener. It's light weight, well made, and opens bottles with no issues. Best part about this one that sets it apart from the competition is the charging base. I've tried a couple different ones so far and they all require you to plug a cord directly into the unit to charge it. With this one, it charges as soon as you set it into the base so you don't forget. The con with this one however is that the foil cutter is stored in the base and doesn't snap onto the unit itself like my old one. It's a very small inconvenience but just worth noting. The wine stopper and aerator are kind of like plastic toys but i really don't use them anyways. For the price though, having a charging base is worth the switch. Overall, really like this opener.
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Reviewed in the United States on April 6, 2025
★★★★★ 5
The functionality, speed & value are superior!
I LOVE THIS PRODUCT! I enjoy my evening glass or 2 of wine, BUT I always had to ask hubby to open the bottle or even the box for me. Granted he has never complained, but well, lets just say, I always felt guilty for making him get out of his recliner.
This wine opener has exceeding my expectations! It' is so easy to use. Use the cutting tool to break the foil seal, (after many uses I need new blades) place the opener with the corkscrew on top of the bottle. Get a firm grip of the neck of the bottle, & push the down button. Then let it quietly, quickly & with so much ease remove the cork!
It is so easy to use! Just plug it into a charger overnight & then you are ready to open many bottles of your favorite wine!
The functionality, speed & value are superior! Get one for your vacation bag, your kitchen, bar, etc, order one for your girlfriends/boyfriends, mother, aunt etc. :) They will thank you for it!
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Reviewed in the United States on March 9, 2025
★★★★★ 5
Good value
Color: Black
The accessories that come with it is a bonus
Seem to keep charge a long time.
Recommend
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Reviewed in the United States on January 6, 2026