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Description
Ronstan 60mm Single Swivel Head w/ Becket & Cleat Core BlockProduct Description Ronstan 60mm Single Swivel Head w Becket & Cleat Core Block Features Class leading performance and sleek, contemporary styling Excellent dynamic and high static load performance Less than half the friction of the nearest competitor Durable aluminum alloy cheek plates Central hub hole can be used as a becket take off or tie up point Sheave 2 3 8 in. (60 mm) Max. Rope 1 2 in. (12 mm) Max. Cable in. (mm) Pin 5 16 in. (8 mm) M. W. L.
Product Description
Ronstan 60mm Single Swivel Head w/ Becket & Cleat Core Block
Features
Class leading performance and sleek, contemporary styling
Excellent dynamic and high static load performance
Less than half the friction of the nearest competitor
Durable aluminum alloy cheek plates
Central hub hole can be used as a becket take-off or tie-up point
Sheave Ø - 2 3/8 in. (60 mm)
Max. Rope Ø - 1/2 in. (12 mm)
Max. Cable Ø - in. (mm)
Pin Ø - 5/16 in. (8 mm)
M.W.L. - 550 lbs. (250 kg)
B. L. - 1100 lbs. (500 kg)
Weight - 15.9 oz (450 g)
Product Information
Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.
Universal Bearing -
Dynamic and high static load performance
The Ronstan Universal Bearing incorporates our proven 2-stage bearing system
Stage 1 - Under moderate loads, Acetal ball bearings ensure minimum friction.
Stage 2 - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance.
Additionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn’t perfect. Particularly important for cheek blocks.
Alloy cheek plates
Block cheeks are manufactured from the highest quality alloy for maximum strength. Material optimisation and the cut-away design minimises weight and allows easy fresh water rinsing of salt and debris from the bearings. Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimizing rope wear.
Applications
Ideal for mainsheet, halyard and spinnaker sheet applications on boats to 12m (40ft).
Various control line applications on larger yachts.
Alloy sheave models are available for use with wire.
Materials
Sheave: U.V. stabilised Acetal or anodised aluminium (AW models)
Cheek plates: Aluminium alloy
Ball Bearings: High compression strength carbon black Acetal
Features
Sheave Ø - 2 3/8 in. (60 mm)
Max. Rope Ø - 1/2 in. (12 mm)
Max. Cable Ø - in. (mm)
Pin Ø - 5/16 in. (8 mm)
M.W.L. - 550 lbs. (250 kg)
B. L. - 1100 lbs. (500 kg)
Weight - 15.9 oz (450 g)
Product Information
Core Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.
Universal Bearing -
Dynamic and high static load performance
The Ronstan Universal Bearing incorporates our proven 2-stage bearing system
Stage 1 - Under moderate loads, Acetal ball bearings ensure minimum friction.
Stage 2 - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance.
Additionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn’t perfect. Particularly important for cheek blocks.
Alloy cheek plates
Block cheeks are manufactured from the highest quality alloy for maximum strength. Material optimisation and the cut-away design minimises weight and allows easy fresh water rinsing of salt and debris from the bearings. Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimizing rope wear.
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
4.3 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Definitely reading more by this author!!!
Format: Paperback
I really enjoyed this book! I absolutely love Holt and Wren. I loved watching them come back together and admit their feelings for each other. What I loved most was the mystery and suspension all throughout this book! It had me hooked from the very beginning, and just when I thought I knew who the culprit was, it was twisted to someone I never expected! I’ll definitely be reading more by this author 🫶🏻
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 17, 2023
★★★★★ 5
First book by Catherine Cowles and it did not disappoint!
Format: Paperback, Format: Paperback
This was my first book by Catherine Cowles and I am sooo hooked on this series!! I fell in love with Holt & Wren. Having read the blurb before reading, I sort of knew what to expect but you’re left guessing all the way until the end who the culprit is😳
Never in a million years would I have ever guessed it right. It’s so easy to see the love between Holt & Wren never went away and all they did for 10 years was delay the inevitable.
Second chance romances are some of my favorites and this was such a good example of it. It was SO fun to watch their love grow again🫶🏼
I can’t wait to read the rest of the series and catch up with the fam and see all their love stories bloom!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 2, 2023
★★★★★ 5
Does catherine cowles posses the ability to fail?
Format: Paperback
This was soooo amazing.
A lovely romance which also has an interesting plotline.
I was unable to put this book down i swear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2024
★★★★★ 5
Romantic Suspense…
Format: Paperback
Someone please explain to me why this is the first book I’ve ever read by the queen Catherine. When the guy’s name is Holt… automatically gets me every time. And WREN?!? I’m actually obsessed with her. Second chance, small town… yes please. I immediately have to start Nash’s book. Catherine Cowles I don’t know where you’ve been alllll of my life but I can’t believe I missed you at BB. Get ready for me to post about reading your WHOLE backlist!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 16, 2023
★★★★★ 4
such a great introduction to her writing
Format: Paperback
For a short story I loved it!! I went into Visions of You not knowing much, and ended up reading it in one sitting ~ which always tells me I’m hooked.
This was my first book by Catherine Cowles, and I loved the tension and pining woven throughout the story. The emotional pull between the characters really stood out to me, and I found myself completely invested in their dynamic.
Even though it’s a shorter story, it didn’t feel lacking ~ if anything, I just wanted more by the end. I’m so glad I already have several of her books on my shelves because this definitely made me excited to keep reading.
A solid 4-star read and such a great introduction to her writing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
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