SKU: 17597286392

Ronstan Series 40 Orbit Single Block w/Becket & Swivel Head

Sale price$36.83 Regular price$40.92
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

Ronstan Series 40 Orbit Single Block w/Becket & Swivel HeadSeries 40 Orbit Single Block with Becket Swivel Head The Series 40 ball bearing Orbit Blocks provides the perfect balance of strength, performance, and reliability. They offer class leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks the perfect balance of performance and

Series 40 Orbit Single Block with Becket Swivel Head

The Series 40 ball-bearing Orbit Blocks provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability.

As well as traditional single swivel blocks, the range includes single and double sheave lashing or soft attachment options through to multiple sheave blocks including those with quad and quin sheaves. The range is highly versatile allowing a multitude of possible systems right up to a 12:1 purchase mainsheet system for off-the-beach performance catamarans.

Series 40 Orbit Blocks are fitted with our carbon-reinforced C-Cleat for secure rope holding with low entry and exit efforts, and fairleads for fast action from any angle. Cleat arms are made from stainless steel and adjustable for setting your preferred cleating angle.

Ball Bearing versions incorporate our 2-stage bearing system using ball bearings to minimize friction and a secondary full-contact bearing to maintain low friction across the full working load range.

High Load versions are designed specifically for any application where high dynamic or static loads are expected. They feature a high-strength grade 2205 stainless steel sheave hub together with a triple bearing race to maintain low friction at very high loads.

Features:


  • Class-leading dynamic and static load ratings

  • Lightweight, yet strong. Toughened, glass fiber reinforced nylon replaces stainless steel straps used in our traditional utility blocks

  • Low friction 2-stage ball bearing system for efficient and effortless trimming

  • Soft attachment, lashing and traditional swivel shackle head options

  • Low profile and compact

  • High performance cleating

  • Stainless steel shackle head for unlimited block rotation, and compatibility with sharp fixing points

  • Integrated becket

Applications:


  • Mainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans and sportsboats to 8m (26ft)

  • Halyard, vang and backstay applications on boats to 9m (30ft)

  • Control line applications on larger yachts

Specifications:


  • Sheave : 1-9/16 in.

  • Max. Rope : 3/8 in.

  • Pin : 5/32"

  • M.W.L.: 880 lb.

  • B. L.: 1760 lb.

  • Weight: 2.1 oz.

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: 17597286392

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Josh Rod
Belleville, US
★★★★★ 5
Shirt worth buying several times
Size: XX-Large, Color: Anthracite Polo Stripe
Purchased another of same order and have found them to be excellent. Comfort, sizing, and quality. Can be dressed up or dressed down and they look great either way. Worn in very hot weather and have not been oppressed by sweat. Nice. Will be purchasing more. Sizing was great. Loose and long enough to land just right over pants pocket top.
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Reviewed in the United States on June 1, 2026
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TheKaizenOne
Draper, US
★★★★★ 5
Great Quality and Comfortable Fit
Size: Large, Color: Washed Blue
I picked up the Amazon Essentials Men’s Golf Polo Shirt, and I’m really impressed. The fabric is soft, breathable, and lightweight — perfect for hot days on the golf course or casual wear. The fit is spot-on, not too tight or too loose, and it looks sharp tucked in or out. It’s held up well after multiple washes without shrinking or losing shape. For the price, it’s excellent quality and a great value. If you need a reliable, comfortable polo for sports or everyday wear, this one is a solid choice. Highly recommend!
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Reviewed in the United States on September 5, 2025
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Picantedulce
Belleville, US
★★★★★ 4
Good quality, but runs a bit short
Size: X-Large, Color: Light Grey Heather
Overall, this is a solid polo for the price. The fabric quality is better than expected, with a nice balance of softness and durability. It’s not paper-thin, but not heavy either, and it does a good job wicking moisture and drying quickly, which is exactly what you want from a golf-style shirt. Functionally, it works well for casual wear, work, or being mildly athletic without committing to actual exercise. Sizing is mostly on point, and I didn't notice any shrinkage after washing, but I always make sure to air dry this type of material and not throw it in the dryer. My only real gripe is the length. It feels like the shirt should be about 1–2 inches longer. If you raise your arms, people may catch a glimpse of your six-pack (hopefully), and if you bend over… well, let’s just say you'll want to be mindful of who's behind you. If Amazon fixed the length, this would be an easy five-star staple.
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Reviewed in the United States on December 12, 2025
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L. Summers
Dallas, US
★★★★★ 5
Love these golf shirts
Size: X-Large, Color: Grey Paint
We've bought several of these golf shirts and my husband really loves them! They are good at wicking away sweat, they fit great, are easy to care for and are well made.
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Reviewed in the United States on May 23, 2026
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DJT
Houston, US
★★★★★ 5
Well made
Size: XX-Large, Color: Dark Burgundy
Very nice golf shirt, well made, perfect size, no shrinkage (washed in cold water), the shirt moves with your body ( a good thing), the shirt is worth the money.
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Reviewed in the United States on April 11, 2026

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