Product Description
Ronstan 100mm Mast Base Core Block
Features:
High dynamic and static load capacity
High load bearing system
Ball bearings to counteract side thrust loads
Class leading 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/tang
Specifications:
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
