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Description
Ronstan Orbit Series 55 Double Becket Block w/ Swivel HeadProduct Description Orbit Series 55 Double Becket Block w 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 Swivel shackle head for unlimited block rotation. Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points. Ultra low profile integrated beckets. Sheave 2 5 32 in. Max. Rope 3 8 in. Max.
Product Description
Orbit Series 55 Double Becket Block w/ 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
Swivel shackle head for unlimited block rotation.
Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points.
Ultra low profile integrated beckets.
Sheave - 2 5/32 in.
Max. Rope - 3/8 in.
Max. Cable - in
Pin - in.
M.W.L. - 1650 lb.
B. L. - 3300 lb.
Weight - 6.1 oz.
Product Information
Lightweight
Kilogram for kilogram of working load, BB and RT Orbit Blocksa are the worlda'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 its 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. The Dyneema Link is produced from FSE Robline SK75 fiber, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.
Holding power 20:1
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
Mainsheet systems and spinnaker sheets on dinghies, catamarans, sportsboats and small keel boats to 9m (30ft)
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 - Carbon fibre reinforced, PTFE impregnated Nylon
Frame/Cheeks - Toughened, glass fibre reinforced Nylon
Rope Link: UV stabilised, multi-strand impregmented SK75 Dyneema
Head fitting: grade 316 stainless steel
Ball Bearings: high compression strength carbon black Acetal
Features
Sheave - 2 5/32 in.
Max. Rope - 3/8 in.
Max. Cable - in
Pin - in.
M.W.L. - 1650 lb.
B. L. - 3300 lb.
Weight - 6.1 oz.
Product Information
Kilogram for kilogram of working load, BB and RT Orbit Blocksa are the worlda'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.
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. The Dyneema Link is produced from FSE Robline SK75 fiber, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.
Holding power 20:1
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
4.8 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Snuggle up to a great pillow cover
Size: 18" x 18" (Pack of 2), Color: 01-off White
These pillow covers are exactly as described. Very fluffy and cozy. They perfectly fit my 18” pillow forms. Easy to assemble and a quality almost invisible zipper holds it together. They look great as accents on my bed and are very cuddly. I washed them first and they looked great after dryer. Excellent value! Don’t forget they need an insert, this is just the cover!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
★★★★★ 5
Solid Pillow Covers + Blanket!
Size: 18" x 18" (Pack of 2), Color: 08-linen, Size: 18" x 18" (Pack of 2), Color: 08-linen
These pillow covers are a great value for the price and the quality feels solid. The soft gray-brown color blends nicely with my bedding and pairs well with the blanket in the same pattern. The ribbed striped design gives them a modern, textured look that would be perfect on a couch or accent chair. On my bed, I think they need to be paired with additional pillows to really stand out, but the size is generous and they are comfortable. Overall, they are stylish, affordable, and well-made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 23, 2025
★★★★★ 5
Soft and cuddly
Size: 18" x 18" (Pack of 2), Color: 08-linen
Love how soft this throw pillow is. I got the matching throw blanket too! Looks great on my couch!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Love Them!
Size: 18" x 18" (Pack of 2), Color: 05-light Purple
I love these pillow covers. They're so soft and comfy but the off white is more of a bright white.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 4
Okay
Size: 18" x 18" (Pack of 2), Color: 01-off White
Matches Bedsure off white throw for couch. Soft, but picks up a lot of lint even after washing
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
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