Ronstan RF35212 Series 30 Ball Bearing Orbit Block – Double With Becket

Highest working load in its class

The Ronstan RF35212 Series 30 Ball Bearing Orbit Block –
Double with Becket boasts the highest strength-to-weight
ratio available. This is achieved through all-composite reinforced
polymer materials and multiple attachment options. Their precision
design provides the optimum number of ball bearings for minimum
friction while weight reduction is achieved through the use of
fibre-reinforced composites in the block head, cleat arms and
beckets.

Ronstan RF35212 Series 30 Ball Bearing Orbit Block – Double
with Becket Features:

• Lightweight, the lowest weight possible in orbit
  blocks
• Multi-sheave blocks have only single intermediate cheeks and an
  ultra-light and efficient head arrangement.
• High compression grade Acetal ball bearings and a secondary
  full-contact bearing
• The sheave and bearing system is supported by a
  fibre-reinforced load frame, computer modelled and optimised using
  advanced stress analysis methods
• The Dyneema Link, used in multi-sheave blocks, is produced from
  high spec SK75 fibre, which is 10 times stronger and lighter than
  steel, and provides the final connection from the block to the load
  point
• Simple, versatile and secure attachment
• The single block is easily lashed to an attachment point, and
  can also accept Dyneema Links and shackles for a variety of
  efficient attachment alternatives
• Low profile and compact
• Ultra low profile thru-sheave becket
• Low friction 2-stage ball bearing system provides consistent
  performance over the full working load range
• Strong, lightweight fibre-reinforced cleat arms optimised at
  the required cleating angle
• Race-proven, carbon-fibre reinforced Ronstan C-Cleats give
  secure rope holding with low entry and exit efforts, and are fitted
  with fairleads for fast action from any angle
• Applications:
  • Mainsheet systems and spinnaker sheets on dinghies to 5m
    (16ft)
  • Halyard, vang and backstay applications on boats to 5m
    (16ft)
  • Control line applications on larger yachts

Ronstan RF35212 Series 30 Ball Bearing Orbit Block – Double
with Becket Specifications:

• Sheave: High compression strength carbon black Acetal
• Ball Bearings: High compression strength Acetal
• Frame/Cheeks: Toughened, glass fibre reinforced Nylon
• Link: UV stabilised, multi-strand impregnated SK75
  Dyneema
• Sheave diameter: 30 mm
• Max. Rope diameter: 8 mm
• M.W.L.: 450 kg
• B. L.: 900 kg
• Weight: 51 g

Ronstan Orbit Blocks User Instructions

Sheave diameter	30 mm
Max. Rope diameter	8 mm
Max. Cable diameter	– mm
Pin diameter	– mm
M.W.L.	450 kg
B. L.	900 kg
Weight	51 g