Pay in installments of $29.45 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Ronstan 75mm Single Core BlockProduct Description Ronstan 75mm Single 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 Universal head with full 3 axis articulation Shackle head lockable at 0 or 90 degrees Alloy Rope Wire sheave version also
Product Description
Ronstan 75mm Single 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
Universal head with full 3-axis articulation
Shackle head lockable at 0 or 90 degrees
Alloy Rope/Wire sheave version also available
Measurements
Sheave Ø - 3 in.
Max. Rope Ø - 9/16 in.
Max. Cable Ø - in
Pin Ø - 5/16 in.
M.W.L. - 330 lb.
B. L. - 6600 lb.
Weight - 12.5 oz.
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.
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. stabilized acetal or anodized aluminum (AW models).
Cheek plates: Aluminum alloy
Ball Bearings: High compression strength carbon black acetal.
Shackle, post & hub: Grade 316 stainless steel.
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.
Universal head
The head assembly incorporates a brass bearing washer to provide smooth 360° rotation of the post and shackle. A set screw arrangement allows the head to be locked at 0° or 90°.
Shackles are high quality forged grade 316 stainless steel
Features
Measurements
Sheave Ø - 3 in.
Max. Rope Ø - 9/16 in.
Max. Cable Ø - in
Pin Ø - 5/16 in.
M.W.L. - 330 lb.
B. L. - 6600 lb.
Weight - 12.5 oz.
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.
Applications
Materials
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.
Universal head
The head assembly incorporates a brass bearing washer to provide smooth 360° rotation of the post and shackle. A set screw arrangement allows the head to be locked at 0° or 90°.
Shackles are high quality forged grade 316 stainless steel
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
4.8 ★★★★★
Based on 17 reviews
Sort
Product Reviews
★★★★★ 1
If you want copy of watch, buy
Color: Grey
Not official watch, barcode not official, weight is off, watch protection was not on watch appears repackaged, used. Synthetic sapphire on specs, differs from official watch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2020
★★★★★ 5
Simple yet classy
Color: Grey
This watch is as presented. If you’re looking a beautiful, yet simple luxury watch, look no further. Favorite watch purchase yet
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 4, 2024
★★★★★ 5
Beautiful and 100% Authentic
Color: Grey, Color: Grey
This watch is beautiful and exactly as described. It came in all the original packaging. The details in this watch are impossible to forger. I also had my local watch shop verify its authenticity when getting it sized, they specialize in Rolex and Tissot.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2022
★★★★★ 5
Looks beautiful and very accurate
Color: Grey
Bought this Tissot as a gift for my wife because she likes larger watches. She has small wrists and this watch looks great on her. The dial is beautiful, the case is well made and the mechanism is very accurate running +4 seconds per day out of the box. Power reserve is great keeping the watch running for up to 3 days. I think this watch is a bit too dressy for a man, but this is my taste. My wife loves it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2019
★★★★★ 5
Great watch!
Style: Dress, Color: Gold Tone Stainless Steel
BEAUTIFUL WATCH and excellent horology you would expect from Citizen.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
recommand products
Broly : BR (FB06-120) (Super Alternate Art) [Rivals Clash]
515.55
Triumph Street Triple 765 2017-2022 Seat Cover Tappezzeria Italia Comfort in Grey
182.50
Broly : BR (FB06-120) [Rivals Clash]
49.50
Baileigh 1000417 BB-4814 Heavy Steel Box Brake w/ 4' x 14 ga Capacity
3057.50
MV Agusta Dragster 800 2019-2024 Seat Cover Tappezzeria Comfort in White
172.00