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Ball Bearing RF74108
Series 75 Core Block™, Halyard Halyard, screw pin with roller head
FEATURES Class leading performance and sleek, contemporary styling.
Excellent dynamic and high static load performance.
Less than half the friction of the nearest competitorSuits direct attachment to mainsail headboard for 2:1 halyard.
Removable 8mm (5/16”) screw pin at head.
Acetal roller on head pin to suit spliced line attachment.
Alloy Rope/Wire sheave version also available.
Central hub hole can be used as a becket take-off or tie-up point
Specifications Product Specifications Pin Ø (in) 5/16 Max. Rope diameter (in) 9/16 M.W.L. (lb) 3300 Sheave diameter (in) 3 B.L. (lb) 6600 Weight (oz) 8.6
Technical Information Materials Sheave: U.V. stabilised acetal or anodised aluminium (AW models). Cheek plates: Aluminium alloy. Ball Bearings: High compression strength carbon black acetal.Pin: 2205 stainless steel
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Ball Bearing 
