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Description
Ronstan Series 100 Orbit Block, Single HalyardProduct Description Ronstan Series 100 Orbit Block, Single Halyard Features The highest strength to weight ratio Minimal friction loss, especially when working at high loads Totally reliable and trouble free performance Simplicity of design and construction to facilitate maintenance and servicing Elegant, functional styling and finish. Removable pin Sheave 4 in. Max. Rope 9 16 in. Max. Cable Pin 5 8 in. M. W. L. 6610 lb. B. L. 14330 lb. Weight 13. 8
Product Description
Ronstan Series 100 Orbit Block, Single Halyard
Features
The highest strength-to-weight ratio
Minimal friction loss, especially when working at high loads
Totally reliable and trouble free performance
Simplicity of design and construction to facilitate maintenance and servicing
Elegant, functional styling and finish.
Removable pin
Sheave Ø - 4 in.
Max. Rope Ø - 9/16 in.
Max. Cable Ø - -
Pin Ø - 5/8 in.
M.W.L. - 6610 lb.
B.L. - 14330 lb.
Weight - 13.8 oz
Product information
Orbit blocks™ are a no-compromise product range developed to meet the demands and expectation 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.Halyard blocks are used in applications with a fixed line entry-angle to keep lines close to the deck as they lead aft to organisers and winches. Halyard block has a removable pin for attachment to deck padeyes or mast collar
Applications
Primary mainsheet, halyard and spinnaker systems on boats to 15m (50ft)
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 machine Alloy cheek plates
Alloy sheaves with captive ball races
Torlon needle rollers
Carbon black Acetal ball bearings
Features
Sheave Ø - 4 in.
Max. Rope Ø - 9/16 in.
Max. Cable Ø - -
Pin Ø - 5/8 in.
M.W.L. - 6610 lb.
B.L. - 14330 lb.
Weight - 13.8 oz
Product information
Orbit blocks™ are a no-compromise product range developed to meet the demands and expectation 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.Halyard blocks are used in applications with a fixed line entry-angle to keep lines close to the deck as they lead aft to organisers and winches. Halyard block has a removable pin for attachment to deck padeyes or mast collar
Applications
Materials
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
4.6 ★★★★★
Based on 26 reviews
Sort
Product Reviews
★★★★★ 5
Muy práctico
Muy práctico para salir de apuros y me gustó mucho la variedad de tamaños
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Useful
Very secure attachment
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Reviewed in the United States on April 8, 2026
★★★★★ 4
Good
Good
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Hubby was happy
My husband was happy with these. He didn’t complain so gold star.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
If you need them,good place to order them
Great but was 2 days late weather. Was bad,in lot of places,
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
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