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Ronstan 55 mm Series 55 RT Orbit Ratchet Block

  • Single Ratchet Block with Swivel Head
  • Safe Working Load: 550 lbs
  • Maximum Line Size: 3/8"
  • Item #: 
    601103
    Brand: 
    Ronstan
    Model #: 

    RF56100

    Packaged Weight: 
    0.20 Lbs.
    List Price: 
    $91.75
    $77.99
    601103 Ronstan Ronstan 55 mm Series 55 RT Orbit Ratchet Block RF56100

    The Ronstan Series 55 RT Ratchet Orbit Block™ (RF56100) has the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 20:1, double that of our nearest competitor. The unique sheave design has 12 gripping faces which directly resist loaded line movement.

    Traditional designs have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimize rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.

    Features:

    • Ultra Lightweight
    • Low friction 2-stage Orbital ball bearing system
    • Highest working load in its class
    • Easily fitted and securely retained Dyneema Link head
    • Low profile and compact
    • High performance cleating

    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: 550 lb (250 kg)
    • Breaking load: 1430 lb (650 kg)
    • Weight: 2.9 oz (82 g)
    • Sheave diameter: 2-5/32" (55 mm)
    • Maximum line size: 3/8" (10 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
      • Rope Link: UV stabilized, multi-strand impregmented SK75 Dyneema®
    Ronstan 55 mm Series 55 RT Orbit Ratchet Block
    77.99
    Status:  null In Stock

    Add Item to Cart to See Sale Price

    The Ronstan Series 55 RT Ratchet Orbit Block™ (RF56100) has the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 20:1, double that of our nearest competitor. The unique sheave design has 12 gripping faces which directly resist loaded line movement.

    Traditional designs have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimize rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.

    Features:

    • Ultra Lightweight
    • Low friction 2-stage Orbital ball bearing system
    • Highest working load in its class
    • Easily fitted and securely retained Dyneema Link head
    • Low profile and compact
    • High performance cleating

    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: 550 lb (250 kg)
    • Breaking load: 1430 lb (650 kg)
    • Weight: 2.9 oz (82 g)
    • Sheave diameter: 2-5/32" (55 mm)
    • Maximum line size: 3/8" (10 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
      • Rope Link: UV stabilized, multi-strand impregmented SK75 Dyneema®
     
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