SKU: 82847859050

Ronstan Series 45 Stand-Up Core Block - Swiveling

Sale price$119.58 Regular price$132.87
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

Ronstan Series 45 Stand-Up Core Block - SwivelingSeries 45 Stand Up Core Block Swiveling 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,

Series 45 Stand-Up Core Block - Swiveling

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.

Features:
  • High dynamic and static load capacity
  • Efficient 2-stage bearing system
  • Ball bearings to counteract side thrust loads
  • Class leading performance and sleek, contemporary styling
  • Durable aluminium alloy cheek plates
  • Central hub hole can be used as a becket take-off or tie-up point
  • Features a strong cast padeye base with a swivel head post to allow full rotation and articulation
Applications:
  • Ideal for mainsheet, halyard and spinnaker sheet applications on boats to 10M (33')
  • Various control line applications on larger yachts
  • Alloy sheave models are available for use with wire
Materials:
  • Sheave: U.V. stabilised Acetal
  • Cheek body: Aluminium Alloy
  • Ball Bearings: High compression strength carbon black Acetal
  • Shackle, head post & hub: 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:
  1. 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
SKU: 82847859050

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festus ramsey
West Palm Beach, US
★★★★★ 4
quality mons
beautiful picture. great for movies, great for multitasking, have 2 side by side mounted on the wall...s after 6 months the display port failed on 1 monitor. i am in the process of sending it back for a replacement.
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Reviewed in the United States on December 15, 2025
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Alan P.
Phoenix, US
★★★★★ 5
I love this monitor!
I had a 1080p curved for a few years and upgraded to this one. I love the 1440p! My games pop. Color is true. Brightness is great. Gaming performance is top notch for my MSI 5070 Vanguard. A great gaming monitor for the money. It comes with an included DP cord.
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Reviewed in the United States on December 27, 2025
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Bryan
Charlottesville, US
★★★★★ 5
Futa
Makes all my femboy games look good
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Reviewed in the United States on March 7, 2026
E
Verified Purchase
emanuel
Boise, US
★★★★★ 1
Misleading description on the title- doesn’t height adjust with the stand provided
Produce is good before the title of the description awful. There is no height adjustment with out buying a separate mount
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Reviewed in the United States on October 27, 2025
S
Verified Purchase
Stephanie
Alexandria, US
★★★★★ 5
very useful
Now that I have had the monitor for a while it is great the picure is sharp and my FPS went up a lot in all of my games. The one thing I did notice is I have to move my mouse farther than my old 32 inch because of the wide screen.. My vids and movies are so clear and sharp I can see every little detail man is it great to watch thing with the 36 inch monitor. I would recommend this monitor to any one who is in to gaming or making videos 180Hz is a good set up for the price
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Reviewed in the United States on August 22, 2025

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