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USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
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Description
Ronstan Series 100 Orbit Block, Single, Universal HeadProduct Description Ronstan Series 100 Orbit Block, Single, Universal Head Product Information Orbit blocks are a no compromise product range developed to meet the demands and expectations of the very dedicated and increasingly professional racing sailor. Side cheeks incorporating head structure and hub are precision machined as a single part from solid alloy, leaving material only where it contributes to the load carrying capacity of the block and
Product Description
Ronstan Series 100 Orbit Block, Single, Universal Head
Product Information
Orbit blocks™ are a no-compromise product range developed to meet the demands and expectations of the very dedicated and increasingly professional racing sailor. Side cheeks incorporating head structure and hub are precision machined as a single part from solid alloy, leaving material only where it contributes to the load carrying capacity of the block and eliminating the need for additional fasteners. The Orbit sheave has captive acetal or Torlon® ball bearings for side thrust loads, eliminating the need for side retainer plates. This reduces weight and allows for a wider bearing surface that can accommodate longer Torlon® needles – achieving a substantially higher strength-to-weight ratio.
Features
- The highest strength-to-weight ratio
- Minimal friction loss, especially when working at high loads
- Captive ball bearings for side thrust loads
- Totally reliable and trouble free performance
- Simplicity of design and construction to facilitate maintenance and servicing
- Elegant, functional styling and finish.
Specifications
- Sheave Ø - 4 in.
- Max. Rope Ø - 5/8 in.
- Pin Ø - 3/8 in.
- M.W.L. - 9350 lb.
- B.L. - 18700 lb.
- Weight - 25.4 oz.
Applications
- Primary mainsheet, halyard and spinnaker systems on boats to 16m (53ft)
- Secondary mainsheet, vang blocks on boats to 18m (60ft)
- Backstay systems on boats to 14m (46ft)
- General control line and lead block applications on larger yachts
Materials
- Fully machined Alloy cheek plates
- Alloy sheaves with captive ball races
- Torlon® needle rollers
- Carbon black Acetal ball bearings
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
4.7 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Pipe shelving 1/2” black pipe with hardware
Unbeatable value they are 1/2” pipe come with screws and pipe clamps with little screws all great quality screws very rare for the Chinese . Strongly recommend on my 4th purchase so far
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Easy assembly
Easy to put together, I love my shelf
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Great product
Great product easy to install and very sturdy
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Looks great
Looks great and holds a lot, easy to put together and install,
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
★★★★★ 5
These are real nice looking industrial look, but bear in mind, they don't come with the shelves
First, understand that you only get the structure, not the actual shelves. The structure is decorative, industrial. piping, which looks really cool., especially in my utility room. I'm gonna get some hardwood for the shelving, so I don't have a picture yet, but I will as soon as I get that. The frame is very stable and strong. So thumbs up on the stability, structure and quality. The directions are straightforward, and all the parts are there. It looks real nice in my utility room and will look real cool when I've got the shelving on there. It's definitely a good value for your money if you need more storage shelving.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
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