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Description
Ronstan 60mm Single Fiddle w/ Cleat & Snap Shackle Head Core BlockProduct Description Ronstan 60mm Single Fiddle w Cleat & Snap Shackle Head 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 aluminium alloy cheek plates Central hub hole can be used as a becket take off or tie up point Adjustable cleating angle Fitted with high performance C cleat and fairlead for secure and
Product Description
Ronstan 60mm Single Fiddle w/ Cleat & Snap Shackle Head 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 aluminium alloy cheek plates
Central hub hole can be used as a becket take-off or tie-up point
Adjustable cleating angle
Fitted with high performance C-cleat and fairlead for secure and easy cleating
Versatile trunnion snap shackle
Provides quick & simple attachment and removal
360 degree rotation with side-to-side articulation
Integrated becket through the hub of the lower sheave
Sheave Ø - 2 3/8 + 1 3/16 in. (60 + 30 mm)
Max. Rope Ø - 1/2 in. (12 mm)
Max. Cable Ø - in. (mm)
Pin Ø - in. (mm)
M.W.L. - 550 lbs. (250 kg)
B. L. - 1100 lbs. (500 kg)
Weight - 19.0 oz. (540 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 optimization and the cut-away design minimizes 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.
Ideal for creating simple vang and mainsheet systems up to 4:1 on boats to 12m (40ft)
Materials
Sheave: U.V. stabilized Acetal or anodized aluminium (AW models)
Cheek plates: Aluminum alloy
Ball Bearings: High compression strength carbon black Acetal
Snap shackle: 15-5PH investment cast stainless steel
Cleat: Fiber reinforced composite
Features
Sheave Ø - 2 3/8 + 1 3/16 in. (60 + 30 mm)
Max. Rope Ø - 1/2 in. (12 mm)
Max. Cable Ø - in. (mm)
Pin Ø - in. (mm)
M.W.L. - 550 lbs. (250 kg)
B. L. - 1100 lbs. (500 kg)
Weight - 19.0 oz. (540 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 optimization and the cut-away design minimizes 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
4.9 ★★★★★
Based on 1465 reviews
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Product Reviews
★★★★★ 5
Black mens coat
I didn't expect such good quality from such an inexpensive black coat, stylish, neat, looks expensive, none of my friends believed that I bought it so cheaply! No pellets appeared after a year and a half of use
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2025
★★★★★ 4
Has shoulder pads.
The jacket has shoulder pads that don't necessarily show on the image in the purchase area. Pretty pronounced so if that's not your thing definitely stay away. Got lucky and it doesn't look too bad on me but it took so long to receive the package I don't feel like going through the refund process so I'm dealing with it. Quality is great tho
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Reviewed in the United States on January 23, 2024
★★★★★ 5
Softness
Size: Medium, Color: A-red
High quality material !
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Reviewed in the United States on January 6, 2026
★★★★★ 3
Nice Coat Not So Great Packaging
Size: X-Small, Color: A-grey
Nice coat but packaging needs to be improved. It arrived not properly folded and as a result it was completely wrinkled. Took some work to iron so it looked as advertised. Packaging for such things has to be reviewed.
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Reviewed in the United States on April 20, 2025
★★★★★ 5
Love the coat.
Size: Large, Color: A-navy
Coat looks and fits great. I ordered a black and was sent dark blue, other wise it looks awesome.
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Reviewed in the United States on October 31, 2023