Series 55 Orbit Block™ Triple Swivel - Part # RF55310

Ronstan Series 55 Orbit Block - Triple Swivel

Series 20 Orbit Block™ Single Lashing Becket - Part # RF25109

Ronstan Series 20 Orbit Block - Single Lashing Becket

Ronstan Series 55 Orbit Block - Upright Lead


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Series 55 Orbit Block - Upright Lead


» Ultra Lightweight
» Low friction 2-stage Orbital ball bearing system
» Highest working load in its class
» Low profile and compact
» High performance cleating

» 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®
» Sheave: Carbon fibre reinforced, PTFE impregnated Nylon


» 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 # RF55171

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Sheave Ø 55 mm__ Max. Rope Ø 10 mm__ Max. Cable Ø - mm__ Pin Ø - mm__ M.W.L. 500 kg__ B. L. 1000 kg__ Weight 91 g