SKU: 23410964043

Ronstan 75mm Stand-Up, Swivel Core Block

Sale price$90.66 Regular price$100.73
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Description

Ronstan 75mm Stand-Up, Swivel Core BlockProduct Description Ronstan 75mm Stand Up, Swivel 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 Swiveling head post for full 3 axis articulation Strong precision cast padeye base Resilient rubber stand up boot

Product Description

Ronstan 75mm Stand-Up, Swivel 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

  • Swiveling head post for full 3-axis articulation

  • Strong precision cast padeye base

  • Resilient rubber stand-up boot prevents clatter & block falling down when not loaded

    Measurements

    Sheave Ø - 3 in.

    Max. Rope Ø - 9/16 in.

    Max. Cable Ø - in

    Pin Ø - in.

    M.W.L. - 330 lb.

    B. L. - 6600 lb.

    Weight - 16.5 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.

    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.

    Fully articulated stand-up

    Stand-up models have a low profile linkage that provides full rotation and articulation. A high strength precision cast padeye minimizes the footprint and a dedicated rubber boot ensures the block is held upright when not loaded.

    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.

  • Post & hub: Grade 316 stainless steel.

  • Padeye: Grade 15.5PH 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: 23410964043

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    4.8 ★★★★★
    Based on 10 reviews
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    J
    Verified Purchase
    Javman
    Chelsea, US
    ★★★★★ 5
    Lightweight, Smooth, and Truly Unscented — My New Go-To Sunscreen
    Size: 6 Fl Oz (Pack of 1), Style: SPF 50
    This is the first time I tried this Banana Boat unscented sunscreen, and I’m genuinely impressed. One of the biggest things I look for in sunscreen is how it feels on the skin, and this one delivers—it’s not sticky at all and goes on very smooth. It’s easy to apply and absorbs quickly without leaving that heavy, greasy feeling. I also really appreciate that it’s unscented. There’s no strong or unpleasant smell, which makes it much more comfortable to use daily. I’ve used other brands before, like Neutrogena and some higher-priced options, but honestly, this one stands out. It performs just as well—if not better—at a more reasonable price. Overall, this is a great sunscreen that I’ll definitely keep using. Highly recommended if you want something lightweight, smooth, and fragrance-free.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 25, 2026
    G
    Verified Purchase
    gurl
    Bozeman, US
    ★★★★★ 5
    BEST sunscreen on the market
    Size: 6 Fl Oz (Pack of 1), Style: SPF 50
    This sunscreen is truly the best sunscreen on the market. I have now bought 4 bottles, and plan to purchase more. It is extremely milky, dissolves onto the skin perfectly, it feels like you arent wearing any sunscreen at all. I tell everyone I know about this product. I also purchase the FACE spf which is even more smooth. I wish they sold this in a giant container, because I apply this everyday !! This sunscreen has made it more accessible for me to apply sunscreen daily, it also has very minimal scent, and never burns your eyes. Personally I will never buy another type of sunscreen again after this sunscreen.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 8, 2026
    L
    Verified Purchase
    Lee
    Draper, US
    ★★★★★ 5
    Good for acne prone sensitive skin
    Size: 3 Fl Oz (Pack of 1), Style: SPF 50
    I am in my 30s with combo leaning oil and acne prone fair skin with pigmentation issues and I’m on prescription tretinoin every day. I sometimes use hydroquinone when my pigmentation issues flare up. I wear sunscreen every single day to protect my skin. It’s especially important since I’m on Tret. daily. Being that I have acne prone skin finding a sunscreen has always been a HUGE challenge for me. I’ve spent so much time on SkinSort and similar sites looking through sunscreen ingredients lists trying to find ones that won’t break me out. I’ve purchased PLENTY of k-beauty, j-beauty, EU sunscreens and Us sunscreens from Sephora and drugstore only for them to break me out. My skin is very sensitive/breakout prone to long ingredients lists, emollients, heavy textures, oils and lots of botanicals. I randomly stumbled upon this banana boat sunscreen here on Amazon and saw the short and fairly simple ingredient list that is low (not free of- but low) in occlusive ingredients in comparison to other sunscreens so I decided to order it. It has not broken me out and it feels nice. No alcohol in it, no irritation, no pimples so far. The tube is user friendly, the texture is light and pleasant and the sunscreen is affordable and accessible. I also appreciate how it’s water resistant so can be worn every day OR pool/beach. I highly recommend this to anyone with acne prone or sensitive skin if you are ok with US chemical sunscreens. I prefer chemical sunscreens over mineral sunscreens as mineral sunscreens break me out. This affordable banana boat in my opinion is WAY better for me personally than high end and expensive options that have tons of pore clogging ingredients. Yes even the popular k-beauty sunscreens break me out unfortunately. Everyone is different and anything has a potential to clog someone but for me this sunscreen is way more safe for my acne prone skin than any other sunscreen option I’ve come across. The majority of sunscreens are just packed with pore cloggers, but this banana boat one is minimal in comparison. The tube is travel size (tsa approved) but bigger than your standard 1.7oz sunscreen. This is nice for me because like I mentioned I wear sunscreen every single day and re-apply if I’ll be outside in the sun. While spending time outside I did not burn while wearing this sunscreen and I’m extremely fair skinned. I also did not notice any new pigmentation issues. The texture is nice, light and pleasant. It wears well under makeup. I normally wash my face in the AM, apply a hydrating kbeauty toner, tiny little dots of super light gel moisturizer (not much- I’m oily!) and then apply this banana boat sunscreen on top. Sometimes I wear makeup sometimes I don’t. It works both ways. I have not experienced any pilling. I have not noticed any scent with this sunscreen other than the sunscreen filters smell which isn’t too bad at all in comparison to other sunscreens I’ve tried. The sunscreen itself adds a touch of moisture but I don’t find it to be greasy on my oily skin. In the summer I will probably use a hydrating toner or serum (skip gel moisturizer) and then apply the banana boat sunscreen since I live in a warm climate. Anyways, this is a very nice textured non offensive not overly clogging (for me at least) Us chemical sunscreen that has been very unproblematic for me. I just apply a decent amount every AM and don’t even think about it. Like I mentioned if I’m out in direct sunlight (normally I’m not in the winter) I’ll reapply as needed. In the PM I use bioderma micellar water and then follow it with my Remedy brand face cleanser and it takes the banana boat off fine. I’m interested in trying the spray version (always spray decent amount into hand and then apply!) for my body in the summer. For now I apply this banana boat sensitive face to my face, neck, hands or whatever exposed area. If you tried the banana boat light as air face spf that one is a little more matte and dry but it’s also more pore clogging in both my experience and by ingredients lists. This banana boat sensitive has a bit of a different texture that’s lightweight and still not greasy but it’s more of a traditional light lotion. The banana boat light as air face one felt great but over time gave me more closed comedones. Needless to say I highly recommend this lightweight Us chemical sunscreen to anyone looking for a simple waterproof Us chemical sunscreen that is affordable and easy. Obviously no white cast as its chemical. Sorry for the long review but it might help someone out. Also I purchased this with my own money I am not a part of one of those product reviewing groups- whatever they are called. No shade to anyone lol.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 6, 2026
    N
    Verified Purchase
    Nicole
    Louisville, US
    ★★★★★ 4
    Great
    Size: 3 Fl Oz (Pack of 1), Style: SPF 50
    The sunscreen itself is really good. It applies smoothly just as advertised “lotion”. I was pleased to see it didn’t leave a white cast. I apply makeup over my sunscreen often. This sunscreen worked perfectly with makeup. Like it said, it’s unscented and that was true as I didn’t detect a scent. My skin feels nice with this on. My only issue is that it didn’t come with a safety seal under the cap. Usually all products come with a seal to ensure it isn’t tampered with and that buyer gets the full amount of product. That was a bit upsetting but hopefully I didn’t actually get a used one.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 3, 2026
    E
    Verified Purchase
    Effee
    Chelsea, US
    ★★★★★ 5
    Sheer Sensitive SPF 50 ☀️
    Size: 6 Fl Oz (Pack of 1), Style: SPF 50, Size: 6 Fl Oz (Pack of 1), Style: SPF 50
    Application: Specifically purchased for use on the face. ​ Finish: Leaves the skin feeling moisturized, not greasy. ​ Appearance: Blends in perfectly with no white cast. ​ Value: Highly concentrated formula—a little goes a long way. ​ Verdict: A rare mineral-based sunscreen that actually feels lightweight and looks invisible on the skin. Ideal for daily protection without the heavy, oily feel of traditional sunscreens.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 27, 2026

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