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RONSTAN Series 30 Orbit Blocks

Orbit Blocks™ represent the future of racing sailboat hardware. The choice of the world's best racing sailors, they offer a no-compromise solution. Their flexible lashing and Dyneema® Link technology mirrors the latest trends in development classes and grand prix ocean racing. The product of meticulous engineering, they deliver the ultimate in strength, weight savings and control.

Advanced fiber and polymer technology that is up to ten times stronger than steel delivers lighter and more compact blocks. Through 3D modelling, Finite Element stress analysis and mould flow analysis, Ronstan engineers made sure that everything performs both in the laboratory and in the real world. Months of on-water testing by elite sailors pushed the product to their limits. After further optimization and fine-tuning, they're now ready for you to test!

Series 30 Orbit Applications:

  • Mainsheet systems and spinnaker sheets on dinghies to 16ft
  • Halyard, vang and backstay applications on boats to 16ft
  • Control line applications on larger boats

Materials:

  • Sheave: High-compression–strength carbon black Acetal
  • Ball Bearings: High-compression-strength Acetal
  • Frame/Cheeks: Toughened, glass-fiber-reinforced Nylon
  • Link: UV stabilized, multi-strand impregnated SK75 Dyneema®
  • Note: "D" suffix blocks have a self-lubricating Nylatron® sheave and full contact bearing for high dynamic loads
  • RF35101 and RF35100: Ultra low profile through-sheave becket
  • RF35322 & RF35332: Composite C-Cleat and fairlead
  • RF35101 accepts RF1850S shackle in both orientations to create a conventional loop top block
  • RF1849 shackle converts double and triple blocks to conventional attachment
Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
Series 30 Orbit Block, Shackle/Standard D/2-Pack 10468676 RF1849-2
In stock online.

$5.27

Series 30 Orbit Block, Shackle/Wide D 10468692 RF1850S
In stock online.

$5.27

Series 30 Orbit Block, Shackle/Wide D/2-Pack 10468684 RF1850S-2
In stock online.

$9.61

Series 30 Orbit Block, Single/Becket/Swivel, 661lb. SWL, 1.1oz. 10468510 RF35100
In stock online.

$19.51

Series 30 Orbit Block, Single/Slotted Headpost, 661lb. SWL, 1.1oz. 10468536 RF35100A
In stock online.

$26.27

Series 30 Orbit Block, Single/Becket/Swivel, Self-Lubricating Nylatron® Sheave, 661lb. SWL, 1.1oz. 10468528 RF35100D
In stock online.

$26.27

Series 30 Orbit Block, Single/Becket/Lashing, 661lb. SWL, 0.8oz. 10468544 RF35101
In stock online.

$13.56

Series 30 Orbit Block, Single/Becket/Lashing/Nylatron, 661lb. SWL, 0.7oz. 10468551 RF35101D
In stock online.

$21.00

Series 30 Orbit Block, Single/Stand Up/Swivel, 661lb. SWL, 1.2oz. 10468569 RF35140
In stock online.

$25.88

Series 30 Orbit Block, Single/Stand Up, 661lb. SWL, 1.3oz. 10468577 RF35141
In stock online.

$22.06

Series 30 Orbit Block, Cheek, 661lb. SWL, 0.7oz. 10468585 RF35151
In stock online.

$15.26

Series 30 Orbit Block, Double, 992lb. SWL, 1.7oz. 10468593 RF35202
In stock online.

$33.96

Series 30 Orbit Block, Double/Becket, 992lb. SWL, 1.8oz. 10468601 RF35212
Delivery within 2 - 3 weeks.

$35.87

Series 30 Orbit Block, Linked, 661lb. SWL, 1.6oz. 10468619 RF35284
In stock online.

$29.75

Series 30 Orbit Block, Clew Ring, 661lb. SWL, 2.2oz. 10468627 RF35286
Limited availability.

$33.99

Series 30 Orbit Block, Triple, 1213lb. SWL, 2.6oz. 10468635 RF35302
In stock online.

$45.01

Series 30 Orbit Block, Triple/Becket, 1213lb. SWL, 2.6oz. 10468643 RF35312
In stock online.

$47.56

Series 30 Orbit Block, Triple/Cam, 1213lb. SWL, 4.4oz. 10468650 RF35322
In stock online.

$76.46

Series 30 Orbit Block, Triple/Becket/Cam, 1213lb. SWL, 4.5oz. 10468668 RF35332
In stock online.

$77.95

Product Description

Orbit Blocks™ represent the future of racing sailboat hardware. The choice of the world's best racing sailors, they offer a no-compromise solution. Their flexible lashing and Dyneema® Link technology mirrors the latest trends in development classes and grand prix ocean racing. The product of meticulous engineering, they deliver the ultimate in strength, weight savings and control.

Advanced fiber and polymer technology that is up to ten times stronger than steel delivers lighter and more compact blocks. Through 3D modelling, Finite Element stress analysis and mould flow analysis, Ronstan engineers made sure that everything performs both in the laboratory and in the real world. Months of on-water testing by elite sailors pushed the product to their limits. After further optimization and fine-tuning, they're now ready for you to test!

Series 30 Orbit Applications:

  • Mainsheet systems and spinnaker sheets on dinghies to 16ft
  • Halyard, vang and backstay applications on boats to 16ft
  • Control line applications on larger boats

Materials:

  • Sheave: High-compression–strength carbon black Acetal
  • Ball Bearings: High-compression-strength Acetal
  • Frame/Cheeks: Toughened, glass-fiber-reinforced Nylon
  • Link: UV stabilized, multi-strand impregnated SK75 Dyneema®
  • Note: "D" suffix blocks have a self-lubricating Nylatron® sheave and full contact bearing for high dynamic loads
  • RF35101 and RF35100: Ultra low profile through-sheave becket
  • RF35322 & RF35332: Composite C-Cleat and fairlead
  • RF35101 accepts RF1850S shackle in both orientations to create a conventional loop top block
  • RF1849 shackle converts double and triple blocks to conventional attachment

Specs

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REVIEW SNAPSHOT®

by PowerReviews
Ronstan Series 30 Orbit Block, Single/becket/lashing, 661lb. Swl, 0.8oz.
 
4.5

(based on 2 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

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    (0)

  • 1 Stars

     

    (0)

Reviewed by 2 customers

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4.0

Good block for the $$

By Rick

from Detroit, MI

About Me Advanced

Verified Buyer

Pros

  • Attractive Design
  • Easy To Install
  • Easy To Use
  • Quality Construction

Cons

    Best Uses

    • Sailing

    Comments about Ronstan Series 30 Orbit Block, Single/becket/lashing, 661lb. Swl, 0.8oz.:

    good block for the price and easy to use in many places.

    (1 of 1 customers found this review helpful)

     
    5.0

    Perfect replacement!

    By Waz

    from Selah, WA

    About Me Beginner

    Verified Reviewer

    Pros

    • Attractive Design
    • Easy To Install
    • Easy To Use
    • Quality Construction

    Cons

      Best Uses

      • Small Boats

      Comments about Ronstan Series 30 Orbit Block, Single/becket/swivel, 661lb. Swl, 1.1oz.:

      I needed to replace the old, thin and worn out mainsheet blocks on my 70's Minifish. What a great way to bringthe boat into the 21st century. The best lookingthing on her!

      Displaying reviews 1-2

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