Item #879876

Ronstan 70 mm (2 3/4") Series 70 Orbit Block - RF75151

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Description

The Ronstan 70 mm Series 70 Orbit Cheek Block (RF75151) 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 fiber-reinforced composites in the block head.

Features:

  • Lightweight
  • Highest working load in its class
  • Secure, versatile and secure attachment
  • 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

Applications:

  • Mainsheet systems on dinghies, sports boats and small keelboats to 11 m (36 ft.)
  • Spinnaker sheets on dinghies, sports boats and small keelboats to 11 m (36 ft.)
  • Halyard, Vang and Backstay application on boast to 8m (26 ft.)
  • Control line applications on larger yachts

Specifications:

  • Safe working load: 1540 lbs (700 kg)
  • Breaking load: 3080 lbs (1400 kg)
  • Weight: 4.3 oz. (122 g)
  • Sheave diameter: 2 3/4" (70 mm)
  • Maximum line size: 1/2" (12 mm)
  • Materials:
    • Sheave: High compression strength carbon black Acetal
    • Ball Bearings: High compression strength Acetal
    • Stage 2 bearing - Carbon fiber reinforced, PTFE impregnated Nylon
    • Frame/Cheeks: Toughened, glass fiber reinforced Nylon
    • Link: UV stabilized, multi-strand impregnated SK75 Dyneema®

Part Numbers for Ronstan 70 mm (2 3/4") Series 70 Orbit Block - RF75151

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