Toggle Navigation
Specials
Rebates
Reviews
Secure
My Account
Log In
Register
My Account
My Orders
My Address Book
My Password
0 items
Home
Sailing
RF56100
$85.16
MAP
Ronstan Series 55 Ratchet Orbit Block - Single - Swivel Head - Auto & Manual - RF56100
[To low to advertise, add to cart for price]
Brand:
RONSTAN
Model:
RF56100
Condition:
New
UPC:
9316800440375
Minimum order: 1
 
Weight: 0.20 lbs
Quantity Available: 6
(Share Product)
Reviews
Quantity:
Add to Cart
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 of 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 may 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 competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes 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)
Product Category: VEHICLES & PARTS > VEHICLE PARTS & ACCESSORIES > WATERCRAFT PARTS & ACCESSORIES > SAILBOAT PARTS
Shopping Cart
0 items
Categories
See All Categories
Please Follow Us
Information
Shipping & Returns
Privacy Notice
Conditions of Use
FAQ
Product Blog
Contact Us
All Products
Show All Boating Products