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Ronstan Series 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto & Manual RF56100

Ronstan Series 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto & Manual RF56100 - Apollo Lighting
Ronstan Series 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto & Manual RF56100 - Apollo Lighting

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Ronstan Series 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto & Manual RF56100

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MSRP: $108.35
$92.10
(You save $16.25 )
SKU: APL706737
MPN: RF56100
UPC: 9316800440375
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Description  
Series 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto & Manual

Automatic Ratchet Block
Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely—great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for many top sailors. Try the block in both modes and see which you prefer—you really can't go wrong.

Awesome Ratchet Block Holding Power
Quite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our sheave cross-hole geometry. Its holding power is up to 21:1, almost 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 minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.

Features:
  • Up to 20:1 holding power
  • Smooth easing of sheets
  • High performance cleating
  • Swivel shackle head for unlimited block rotation.
  • Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points.
  • Automatic & manual ratchet block

Applications:
  • Mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 8M(26')
  • Halyard, vang and backstay applications on boats to 8M(26')
  • Spinnaker sheets on sportsboats and small keel boats (lateral lead blocks)

Materials:
  • Sheave: Hard anodised Aluminium
  • Ball Bearings: High compression strength carbon black Aceetal
  • Frame/Cheeks: Toughened, glass fiber reinforced Nylon
  • Rope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®
  • Head fitting: grade 316 stainless steel

Specifications:
Sheave Ø: 55mm(2")
Max. Rope Ø: 10mm(1/2")
M.W.L.: 250kg(550lbs)
B. L.: 650kg(1,430lbs)
Weight: 82g(2.9oz)
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We ship all in-store (FL) stock orders the same day if placed before 3 PM EST, Monday through Friday. Orders placed after this time will ship the next business day. Orders fulfilled from other warehouses or manufacturers may not ship the same day. If an item is out of stock, we will notify you promptly.

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