Ronstan Series 15 Triple BB Block

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Product Description Ronstan Series 15 Triple BB BlockFeatures: Smallest and lightest ball bearing block available Precision moulded acetal sheave running on stainless steel ball be arings provide high performance & low friction Single loop head blocks include an O-ring to separate running line from head lashing or fixingSpecifications: Sheave Ø - 5/8 in. (15mm) Max. Rope Ø - 3/16 in. (5mm) M.W.L. - 790 lbs. (360 kg) B. L. - 1870 lbs. (850 kg) Weight - 1 oz. (28 g)Applications: Dinghy control lines Vangs, cunninghams and tweakers Shock cord tensioning systemsMaterials: BB sheaves: UV stabilized acetal Ball bearings: Stainless steel Cheeks: Grade 316 stainless steel Show more