Pay in installments of $34.23 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 24 - Sep 29
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Ronstan 60mm Single Fiddle w/ Swivel Head Core BlockProduct Description Ronstan 60mm Single Fiddle w Swivel 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 aluminum alloy cheek plates Central hub hole can be used as a becket take off or tie up point Integrated becket through the hub of the lower sheave Sheave 2 3 8 + 1 3 16 in. (60 + 30 mm) Max. Rope 1 2
Product Description
Ronstan 60mm Single Fiddle w/ Swivel 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 aluminum alloy cheek plates
Central hub hole can be used as a becket take-off or tie-up point
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. (1000 kg)
B. L. - 4410 lbs. (2000 kg)
Weight - 12.5 oz. (355 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.
Materials
Sheave: U.V. stabilized Acetal or anodized aluminum (AW models)
Cheek plates: Aluminum alloy
Ball Bearings: High compression strength carbon black Acetal
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. (1000 kg)
B. L. - 4410 lbs. (2000 kg)
Weight - 12.5 oz. (355 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
4.3 ★★★★★
Based on 11 reviews
Sort
Product Reviews
★★★★★ 4
Fixed my leak
Fixed my leak been holding for a couple months solid
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 18, 2023
★★★★★ 5
Buen artículo
Era lo que pedí
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 5, 2025
★★★★★ 5
Perfect fit .
Perfect fit for my 2008 BMW 335i.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2024
★★★★★ 5
Grand calidad y envío rápido
Excelente servicio y buen producto
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2025
★★★★★ 5
Fit my 2008 328i BMW perfectly!
This fit my 328i BMW perfectly! It was easy installing the hose to engine on the top end. Connecting it to the water pump was a challenge, because the hose clamp was turned downward. If not for that, it would have been a breeze. Saved me hundreds of dollars. Buy this one!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2022
recommand products
14K 10.6mm Hand-polished Flat Beveled Curb Link Bracelet
2233.00
REUNION Obsidian Dress Black Ecru
75.00
ALL ABOUT EVE Mavis Vest Natural
89.95
Ziba Premium Cute Cow Print Glass Milk Bottle with Leakproof Lid – Aesthetic Reusable Beverage Bottle for Milk, Juice & Cold Drinks – 1 Pc
675.00
Luxury Glass Coffee Carry Cup Handbag Style Serving Mug & Aesthetic Decorative Display Container
1400.00