🔄
Skip to content
Contact us for all of your boating/fishing needs! ⛵
Contact us for all of your boating/fishing needs! ⛵
Shipping Policy Return and Refund Policy Payment Policy Privacy Policy Terms of Service Contact Us About Us
Ronstan Series 40 Orbit Single BB Single StandUp Block RF48140

Ronstan Series 40 Orbit Single BB Single Stand-Up Block [RF48140]

Authorized Ronstan Dealer
Genuine Product
Save $8.94 Save $8.94
$59.57
$59.57 - $59.57
$59.57
$50.63
$50.63 - $50.63
$50.63
Questions? Just Call. U.S. based expert support. +1 (346) 385-4984
Availability:
5+ in stock, ready to be shipped
Why Choose Boating Tools?
Trusted • U.S.-Based
  • Ships today or tomorrow (in-stock items)
  • Ships from U.S. warehouse with tracking
  • No sales tax (excluding Texas)
    • U.S. expert support: +1 (346) 385-4984
    Mon–Fri 9AM–5PM CST

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.

No manual is available for this product.

Estimated Delivery Time: 1-7 business days.

  • Orders placed before 1PM CST will ship the same day. All other orders will ship the next day.
  • Transit Time: 1-6 business days

Click here to view our full Shipping Policy.

Returns accepted within 30 days.

  • Items must be new, unused, and in original packaging.
  • Returned merchandise may be subject to a restocking fee of up to 15%

Click here to view our full Return & Refund Policy.
Offer quality marine equipment from trusted brands and treat customers the way we'd want to be treated.
Boating Tools — Our Mission

Have a question? Just call us.

A real human from the U.S. will answer. We can help you pick the right gear, talk through compatibility, or work out pricing. If we miss your call, leave a voicemail and we'll get back to you.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare