Ronstan Series 55 Ratchet Orbit Block™ Single Swivel Head - Part # RF56100

Ronstan Series 55 Ratchet Orbit Block - Single Swivel Head

Ronstan Series 55 Orbit Block™ Upright Lead - Part # RF55171

Ronstan Series 55 Orbit Block - Upright Lead

Ronstan Series 55 Orbit Block - Triple Swivel


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Series 55 Orbit Block - Triple Swivel


» Ultra Lightweight
» Low friction 2-stage Orbital ball bearing system
» Highest working load in its class
» Low profile and compact
» High performance cleating
» Swivel shackle head for unlimited block rotation.
» Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points.
» Ultra low profile integrated beckets.

» 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®
» Head fitting: grade 316 stainless steel


» Mainsheet systems and spinnaker sheets on dinghies, catamarans, sportsboats and small keel boats to 9m (30ft)
» Halyard, Vang and Backstay application on boats to 8m (26ft)
» Control line applications on larger yachts

Part # RF55310
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Sheave Ø 55 mm__ Max. Rope Ø 10 mm__ Max. Cable Ø mm__ Pin Ø 5 mm__ M.W.L. 750* kg__ B. L. 1500 kg__ Weight g