SKU: 74617538549

Ronstan Series 40 Orbit Single BB Single Stand-Up Block

Sale price$42.46 Regular price$47.18
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Ronstan Series 40 Orbit Single BB Single Stand-Up BlockSeries 40 Orbit Single BB Single Stand Up Block 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 BB Single Stand-Up Block

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

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 Ø: 1-9/16 in.
  • Max. Rope Ø: 3/8 in.
  • M.W.L.: 880 lb.
  • B. L.: 1760 lb.
  • Weight: 2.5 oz.

Manufacturer Part Numbers: RF48140
GRP:WRO
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: 74617538549

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4.7 ★★★★★
Based on 11 reviews
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Verified Purchase
Jeremy Harsa
Bozeman, US
★★★★★ 5
Order a sewing machine too
Color: Light Champagne, Size: 14, Color: Light Champagne, Size: 14
This suit had me questioning whether the manufacturer had ever actually seen a human child before. The pants were SO long — like they were tailored for a 9-year-old with 100 feet of shin. 😂 I had to hem them significantly just to make them wearable for a normal boy. The bow tie was also a letdown. Ours may have arrived defective, but it only seemed to have one hook with nowhere for it to actually attach, so we ended up improvising with the fabric loop. Not exactly the polished wedding-ready moment I was hoping for. The shirt was probably the highlight. It has a subtle textured pattern that makes it feel a little more unique than a standard dress shirt, which I appreciated. Unfortunately, the fabric itself is stiff and not particularly comfortable. Overall, the whole set feels pretty cheap quality-wise. BUT… he’s 9. He’ll outgrow it before the next wedding invitation hits the mailbox anyway. 😂 For one day of looking like a dashing young gentleman instead of a tiny tornado in sweatpants, it got the job done. Just definitely not something I’d recommend for peak summer wedding season unless your child enjoys marinating in polyester.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
L
Verified Purchase
Laila
Louisville, US
★★★★★ 5
Loved it
Color: Deep Gray, Size: 10, Color: Deep Gray, Size: 10
Pretty good fit on my son. I'd say it's true to size. He looked great for his guitar recital.
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Reviewed in the United States on February 16, 2026
D
Verified Purchase
D.W.
Grantham, US
★★★★★ 5
Nice outfit
Color: Black, Size: 12
Perfect for graduation ceremony
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Reviewed in the United States on May 25, 2026
C
Verified Purchase
CaRmEnCiTah
Louisville, US
★★★★★ 5
Happy Customer
Color: Black, Size: 5, Color: Black, Size: 5
I really loved the way my son looked in this suit, pants were a bit baggy and big on the waist but I’m glad it was adjustable, the length was perfect.
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Reviewed in the United States on May 20, 2026
A
Verified Purchase
Amy Johnson
Massapequa, US
★★★★★ 5
Worth it.
Color: Dark Brown, Size: 10
Adorable. Great quality. Fun little suit.
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Reviewed in the United States on April 7, 2026

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