Item #879839

Ronstan 40 mm Series 40 Orbit Cheek Block - RF46151

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Ronstan 40 mm Series 40 Orbit Cheek Block - RF46151

Item # 879839

Description

Ronstan's Ratchet Orbit Blocks™ are specifically designed for racing sailboats and provide the highest holding power available on the market. The Series 40 delivers up to 14:1 holding power and features Generation 2 of Ronstan's patented sheave cross-hole geometry and straight resistance faces which both distribute the load and minimize rope wear.

Features:

  • Recessed underside to suit curved mounting surface
  • Fully automatic, load sensing ratchet engagement
  • Ultra lightweight, low profile and compact
  • Up to 14:1 holding power - the highest available!
  • Low friction 2-stage Orbital ball bearing system
  • Highest working load in its class
  • Smooth easing of sheets
  • Low mounting points for maximum strength
  • Clockwise rotation
  • Applications:
    • Mainsheet systems on dinghies, sportsboats and small keelboats to 9m (30ft)
    • Spinnaker sheets on dinghies, sportsboats and small keel boats to 9m (30ft)
    • Halyard, Vang and Backstay application on boast to 8m (26ft)
    • Control line applications on larger yachts

Specifications:

  • Safe working load: 385 lbs (175 kg)
  • Breaking load: 1,100 lbs (500 kg)
  • Weight: 1.3 oz (36g)
  • Sheave diameter: 1-9/16" (40 mm)
  • Maximum line size: 5/16" (8 mm)
  • Materials:
    • Ball bearings - High compression strength carbon black Acetal
    • Stage 2 bearing - Carbon fiber reinforced, PTFE impregnated Nylon
    • Frame/Cheeks - Toughened, glass fiber reinforced Nylon
  • Recommended fasteners: 2 x 4mm (5/32") counter sunk head screws

Part Numbers for Ronstan 40 mm Series 40 Orbit Cheek Block - RF46151

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