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Description
Ronstan 75mm Single Foot Core BlockProduct Description Ronstan 75mm Single Foot 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 Only two fastener holes minimizes deck sealing considerations Scalloped cheeks allows for variations in line lead
Product Description
Ronstan 75mm Single Foot 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
Only two fastener holes - minimizes deck sealing considerations
Scalloped cheeks - allows for variations in line lead
Measurements
Sheave Ø - 3 in. (75 mm)
Max. Rope Ø - 9/16 in. (14 mm)
Max. Cable Ø - in (mm)
Pin Ø - in. (mm)
M.W.L. - 3300 lb. (1500 kg)
B. L. - 6600 lb. (3000 kg)
Weight - 9.2 oz. (259 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 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.
Hub: stainless steel
Features
Measurements
Sheave Ø - 3 in. (75 mm)
Max. Rope Ø - 9/16 in. (14 mm)
Max. Cable Ø - in (mm)
Pin Ø - in. (mm)
M.W.L. - 3300 lb. (1500 kg)
B. L. - 6600 lb. (3000 kg)
Weight - 9.2 oz. (259 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
4.4 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Became my dog's new favorite
Color: Blue
This instantly became my dog's go-to toy, and thankfully it's lasted longer than I anticipated. He was excited to play with it immediately, of course, but he also continued to go to it over all the other toys he has. He loves to rip and tear, so I didn't think this would last more than a day, but incredibly it's been going for weeks. Granted, he's torn out the squeaker and some of the crinkly plastic, as well as most of the stuffing, but there's still a recognizable dinosaur-shaped toy hanging around that he still likes to play with. The squeaker is also different than most dog toys, it's larger and lower-pitched, so that variation is fun. There's lots of crinkly plastic in the tail and feet, so even after my dog ripped open the tail and gotten that plastic out, there's still more noise-making stuff left in there. The size and amount of stuffing is also great, as it's given him many days of things to tear apart.
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Reviewed in the United States on August 21, 2025
★★★★★ 5
My Dogs Love It!
Color: Blue, Color: Blue
Do your dogs love a specific type of toy? Since my girls were puppies, they have preferred a specific material for toys. It is a soft, bubbly texture, usually in bright colors. It is soft for them and durable enough to survive even the toughest of playmates. All the toys made from this material also have a certain crinkle paper that drives both of my girls wild, and sometimes even include a squeaker. When I saw that this adorable dinosaur fit their favorite toy's qualities, I knew I had to get it for them!
First, I want to talk about the quality. This dinosaur is adorable and designed for some tough play sessions. It is more reinforced than the name-brand toys I buy, which impressed me. While my girls rarely destroy toys, I find comfort in knowing that they will likely get bored with a toy before destroying it. What shocked me more was the squeaker. This company didn't go cheap; they went for a higher quality, large squeaker that is very loud and durable. My dogs have been playing with this for nearly two hours straight, and the squeaker has been going strong. If you don't like loud squeakers, though, be warned, it is very loud and isn't stop working anytime soon!
Overall, this toy has been a big hit and way cheaper than what I can buy at local pet stores. With the quality and how much my girls love it, it has been a bargain and well worth it! This is a toy that we will be purchasing more of soon.
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Reviewed in the United States on August 9, 2025
★★★★★ 5
Rawr!
Color: Blue, Color: Blue
My dogs love this toy; they have been playing with it for a few days, and surprisingly, it has been durable enough to withstand most of the torture. it has a fun squeaker and thankfully not too much filler, which I am thankful to have to follow behind to pick up.
This is a good value toy. My dogs can usually tear a toy up in seconds but for some reason, they have chosen to keep this dinosaur alive!
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Reviewed in the United States on August 18, 2025
★★★★★ 4
Not for Aggressive Chewers
Color: Blue, Color: Blue
Cute stuffed dino with one large squeaker in the body and crinkle paper in the feet and tail. The right size for medium to large dogs. Riley was eager to play tug-of-war with this toy when I first gave it to her. Five minutes later the novelty had worn off and she went to her toy basket to bring out her usual favorites. Being plush, this is not really a toy for aggressive chewers--after only 5 minutes she had torn open a seam and ripped off part of the tag. I'll continue to let her play with it until stuffing starts coming out (which shouldn't be long).
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Reviewed in the United States on August 13, 2025
★★★★★ 5
Great Value Toy
Color: Crinkle Duck (Blue), Size: Large, Color: Crinkle Duck (Blue), Size: Large
This toy has been one of my dog’s absolute favorites. He gets excited every time he sees it and will carry it around the house, toss it in the air, and keep himself entertained for a long time. The shape and texture seem perfect for him, and it quickly became one of his go-to toys over everything else in his basket.
What I really like is that it holds up reasonably well for the price. It’s definitely not indestructible, and after a lot of play, it will sometimes start to rip—usually around the feet first since that’s where my dog tends to grab and chew the most. But honestly, considering how affordable it is, I don’t mind replacing it when needed. It’s inexpensive enough that rebuying feels worth it because he genuinely loves it that much.
I’d rather keep buying a toy he is obsessed with than spend more on something that just sits untouched. It’s fun, cute, and keeps him happy, which is what matters most. Overall, I’d definitely recommend it for dogs who love plush toys and playful chewing.
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Reviewed in the United States on April 28, 2026