Ronstan 100mm Mast Base Core Block

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Product Description Ronstan 100mm Mast Base Core BlockFeatures: High dynamic and static load capacity High load bearing system Ball bearings to counteract side thrust loads Class l eading performance and sleek, contemporary styling Durable aluminium alloy cheek plates Central hub hole can be used as a becket take-off or tie-up point Also available in Series 45, 60 & 75 22mm (7/8") inside cheeks at head Mount with 2 x 12mm (7/16") fasteners (not supplied) Full block rated load can only be achieved with uniformly distributed load across full length of clevis pin. ie. 22mm (7/8") diameter mast collar post or 22mm (7/8") wide mast collar plate/tangSpecifications: Sheave Ø - 4 in. (100mm) Max. Rope Ø - 3/4 in. (18mm) Max. Cable Ø - in (mm) Pin Ø - 1/2 in. (12mm) M.W.L. - 7150*1 lb. (3250*1 kg) B. L. - 16500*1 lb. (7500*1 kg) Weight - 21.7 oz. (614 g)Applications: Ideal for mainsheet, spinnaker sheet, vang, halyard and backstay applications on boats to 16m (53ft). General applications on larger yachts.Materials: Bearings: High compression strength, self-lubricating acetal Head post: Grade 2205 stainless steel Shackles: Grade 17-4PH stainless steel Padeye: Grade 15-5PH stainless steel Other fixtures: Grade 316 stainless steel Show more