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Description
Ronstan Series 40 BB Single Orbit Block w/ Becket Option & LashingProduct Description Ronstan Series 40 BB Single Orbit Block w Becket Option & Lashing Features Class leading dynamic and status load rating Lightweight, yet strong. Toughened, glass fibre 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
Product Description
Ronstan Series 40 BB Single Orbit Block w/ Becket Option & Lashing
Features
Class leading dynamic and status load rating
Lightweight, yet strong. Toughened, glass fibre 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
Stainless steel shackle head for unlimited block rotation, and compatibility with sharp fixing points
Integrated becket
Specifications
Sheave Ø - 1 9/16 in. (40mm)
Max. Rope Ø - 3/8 in. (10mm)
Max. Cable Ø - in. (mm)
Pin Ø - in. (mm)
Max. Working Load - 880 lb. (400kg)
B. L. - 1760 lb. (800kg)
Weight - 1.7 oz. (47g)
Product Information
The new Series 40 ball bearing Orbit Blocks™ provide 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 fibre 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 also 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 extremely 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 are adjustable for setting to 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.
Applications
Mainsheet systems on spinnaker sheet on dinghies
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
Materials
Frame/cheeks: Toughened, glass fibre reinforced nylon
Head fittings, hubs & fasteners: Grade 316 stainless steel
BB Sheaves and balls: High compression strength acetal.
Features
Specifications
Sheave Ø - 1 9/16 in. (40mm)
Max. Rope Ø - 3/8 in. (10mm)
Max. Cable Ø - in. (mm)
Pin Ø - in. (mm)
Max. Working Load - 880 lb. (400kg)
B. L. - 1760 lb. (800kg)
Weight - 1.7 oz. (47g)
Product Information
The new Series 40 ball bearing Orbit Blocks™ provide 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 fibre 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 also 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 extremely 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 are adjustable for setting to 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.
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
4.2 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Consider ordering one size larger than you normally wear.
Size: Medium, Color: Ice Blue, Number of Items: 1
Excellent quality shirts available in so many colors. Take note though....the sizes do run true to size BUT more of an athletic slimmer fit. If you don't want to be "tight" then order one size larger. If you're very athletic and fit....then order true to your normal size, just know the shirt will be "form fitting" and not loose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
★★★★★ 5
Perfect size
Size: 13 Women/12 Men, Color: Black/Black/Black
Just got my new sandals and I’m obsessed! They are super cute, comfortable, and fit perfectly. The quality is really nice and they go with almost everything. Definitely one of my best purchases!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 5
Shoes
Size: 8 Women/7 Men, Color: Black/Black/Black
Solid black. Fit is great, comfortable for me, no noise good traction and very easy to slide on and adjust well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
★★★★★ 5
Perfect size and fit
Size: 11 Women/10 Men, Color: Black/Black/Black
This sandal is the perfect fit and very comfy. It’s very sturdy and outdoor friendly as well. I love how flexible and breathable this is and the design makes it even more perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 4
Great...
Size: 8 Women/7 Men, Color: Black/Black/Black
I bought these flip-flops, and they exceeded my expectations. The highlights for me are:
Total Comfort: They are extremely comfortable right from day one.
Great Quality: You can tell the materials are sturdy and durable—typical of the brand.
Excellent Price: Unbeatable value for money.
I really liked them; it’s undoubtedly a purchase you won't regret. They are totally worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
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