Ronstan 55mm Orbit Block: Cheek

aps price $39.95
In Stock Now
SKU
RF55151

Ronstan's Series 55 Ball Bearing Orbit Blocks boast the highest strength-to-weight ratios on the market. They are the only ratchet blocks with both manual and fully automatic modes and control switches on both sides. They provide almost double the holding power of their nearest competitor.

Ronstan's two-stage bearing system features high compression grade Acetal ball bearings and a secondary full-contact bearing to provide minimum friction across the full working load range.

The Dyneema Link is easily fitted. Ronstan's C-Cleats provide secure rope holding with low entry and exit efforts, and are fitted with fairleads for fast action from any angle.

Integrate the Series 55 blocks into mainsheet and spinnaker sheet systems on dinghies, sportsboats, and small keelboats; halyard, vang, and backstay applications on boats up to 26' (8m); and control line applications on larger yachts and you'll be assured of ultimate performance right out of the block.

More Information
Color Black
Breaking Load (lbs) 2200
Breaking Load (kg) 1000
Max Line Size (in) 3/8
Max Line Size (mm) 10
Safe Working Load (lbs) 1100
Safe Working Load (kg) 500
Sheave Diameter (in) 2 5/32
Sheave Diameter (mm) 55
Weight (oz) 2.5
Weight (g) 70
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