Ronstan Orbit Ball Bearing Block™ - Double Block

List price:76.28 ex. VAT Price:71.86 ex. VAT
Price: 86.95 (inc. VAT)
You save: €4.42 (6%)
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RONSTAN RF55210
Preorder
3 days (approx.)
+
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Ronstan Ball Bearing Orbit Blocks™ feature the unique orbital version of the Ronstan 2 stage bearing system. Recirculating ball bearings are positioned exclusively in the loaded area of the sheave and a second full contact bearing maintains low friction across the full working load range. Combined with composite reinforced polymer materials, Orbit Blocks™ offer maximum strength to weight ratio for high load and dynamic applications.

Double Orbit blocks feature either a conventional 316 (A4) stainless steel shackle which provides full rotation and ultimate durability, or a secure, versatile non-swivel stainless shackle head.

Built-in Becket - Orbit blocks have low profile moulded check plates optimized for use with the through sheave becket system, ultra-low profile and light weight.

Double blocks are recommended for the following applications:

  • Mainsheet systems¹
  • Halyard, vang and backstay applications²
  • Control lines on larger boats

 

Ref. Sheave
mm
Maximum Line Ø
mm
Working Load
kg
Breaking Load
kg
Shackle Pin Ø
mm
Weight
g
1. Max boat length 2. Max boat length
RF35202 30 8 450 900 - 56 5 m 5 m
RF55210 55 10 750* 1500* 5 172 9 m  8 m

* The loads indicated are the maximum loads of the block. Load on the built-in becket not to exceed 33% of block load.

  Product Code Ronstan Orbit Block™ Availability Price
Ronstan Orbit Ball Bearing Block™ - Double Block - bluemarinestore.com
RONSTAN RF35202
30 mm
3 days
37.99 (inc. VAT)
31.40 (ex. VAT)
Ronstan Orbit Ball Bearing Block™ - Double Block - bluemarinestore.com
RONSTAN RF55210
55 mm
3 days
86.95 (inc. VAT)
71.86 (ex. VAT)

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Ronstan Ball Bearing Orbit Blocks™ feature the unique orbital version of the Ronstan 2 stage bearing system. Recirculating ball bearings are positioned exclusively in the loaded area of the sheave and a second full contact bearing maintains low friction across the full working load range. Combined with composite reinforced polymer materials, Orbit Blocks™ offer maximum strength to weight ratio for high load and dynamic applications.

Double Orbit blocks feature either a conventional 316 (A4) stainless steel shackle which provides full rotation and ultimate durability, or a secure, versatile non-swivel stainless shackle head.

Built-in Becket - Orbit blocks have low profile moulded check plates optimized for use with the through sheave becket system, ultra-low profile and light weight.

Double blocks are recommended for the following applications:

  • Mainsheet systems¹
  • Halyard, vang and backstay applications²
  • Control lines on larger boats

 

Ref. Sheave
mm
Maximum Line Ø
mm
Working Load
kg
Breaking Load
kg
Shackle Pin Ø
mm
Weight
g
1. Max boat length 2. Max boat length
RF35202 30 8 450 900 - 56 5 m 5 m
RF55210 55 10 750* 1500* 5 172 9 m  8 m

* The loads indicated are the maximum loads of the block. Load on the built-in becket not to exceed 33% of block load.

  Product Code Ronstan Orbit Block™ Availability Price
Ronstan Orbit Ball Bearing Block™ - Double Block - bluemarinestore.com
RONSTAN RF35202
30 mm
3 days
37.99 (inc. VAT)
31.40 (ex. VAT)
Ronstan Orbit Ball Bearing Block™ - Double Block - bluemarinestore.com
RONSTAN RF55210
55 mm
3 days
86.95 (inc. VAT)
71.86 (ex. VAT)

No posts found

Write a review