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Description
Ronstan 75mm Double Core Foot BlockProduct Description Ronstan 75mm Double Core Foot 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 aluminium alloy cheek plates Central hub hole can be used as a becket take off or tie up point Sheave 3 in. (75 mm) Max. Rope in. (mm) Max. Cable in. (mm) Pin in. (mm) M. W. L. 3300 lb. (1500** kg) B. L. 6600 lbs.
Product Description
Ronstan 75mm Double Core Foot 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 aluminium alloy cheek plates
Central hub hole can be used as a becket take-off or tie-up point
Sheave Ø - 3 in. (75 mm)
Max. Rope Ø - in. (mm)
Max. Cable Ø - in. (mm)
Pin Ø - in. (mm)
M.W.L. - 3300 lb. (1500** kg)
B. L. - 6600 lbs. (3000** kg)
Weight - 18.7 oz. (530 g)
** - Total block load. Maximum load on top sheave not to exceed 50% of total block load
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 use on mainsheet, spinnaker sheet, vang, halyard and backstay applications on boats up to 14m (46ft).
General 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 - 3 in. (75 mm)
Max. Rope Ø - in. (mm)
Max. Cable Ø - in. (mm)
Pin Ø - in. (mm)
M.W.L. - 3300 lb. (1500** kg)
B. L. - 6600 lbs. (3000** kg)
Weight - 18.7 oz. (530 g)
** - Total block load. Maximum load on top sheave not to exceed 50% of total block load
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
4.7 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Sturdy and Very Practical
Size: 6 Panels, Color: Grey
This room divider is sturdy, easy to set up, and looks clean and professional. It provides great privacy and is perfect for separating spaces at home or in an office. I love that it’s foldable and easy to move around when needed. Very good quality and worth the purchase!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
★★★★★ 5
Great product
Size: 4 Panels, Color: Beige
We needed something too block off a corner of a room. I looked through a ton of different room divider options on Amazon. I’m glad I did. I’ve had it up for about up about 4 months now, and it’s holding up well. Not too difficult to put together you just got to pay attention and make sure you’re putting it together the right way. The fabric is of good quality. It doesn’t feel flimsy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
★★★★★ 4
Decent room divider for a good price.
Size: 4 Panels, Color: Grey
Honestly I'm pretty happy with the product for the price paid. The instructions were relatively easy to figure out and I put it together myself in an afternoon. Looks good for how cheap it was, and does exactly what I wanted. Double check your measurements before buying, but this worked out great for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
★★★★★ 5
Great solution if you need some privacy!
Size: 6 Panels, Color: Beige
I had my family and relatives came over last holiday and I needed to provide a make shift rooms for them. I have a finished basement. I purchased 2 sets of VEVOR 6 Panel Room Divider and solved my problem.
The VEVOR 6 Panel Room Divider is a practical and affordable way to create privacy in any space. It’s easy to set up and the folding design makes it simple to adjust or store when not in use. The panels are lightweight but still feel sturdy enough. Assembly needs some extra patience
Overall, a great value option for flexible and convenient room separation. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
★★★★★ 5
VEVOR Room Divider
Size: 6 Panels, Color: Black
The VEVOR Room Divider is good, it gives the privacy that I want and was easy to assemble.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
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