Ronstan RF74108A Series 75 Ball Bearing Mast Base Core Block – Clevis Pin Head

• Class leading performance and sleek, contemporary styling
• Excellent dynamic and high static load performance
• Less than half the friction of the nearest competitor
• Suits attachment to 14 mm (9/16) wide mast collar post
• Removable 8 mm (5/16) clevis pin at head
• Central hub hole can be used as a becket take-off or tie-up point

Applications

• Ideal for use on mainsheet, spinnaker sheet, vang, halyard and backstay applications on boats up to 14 m (46 ft)
• General applications on larger yachts

Materials

• Sheave: UV stabilised acetal
• Cheek plates: Aluminium alloy
• Ball Bearings: High compression strength carbon black acetal
• Pin: 2205 stainless steel

Specifications

• Sheave : 75 mm
• Max Rope : 14 mm
• Max Cable : –
• Pin : 8 mm
• MWL: 1500 kg*
• BL: 3000 kg*
• Weight: 72 g

*Full block rated load can only be achieved with uniformly distributed load cross full length of clevis pin ie. 14 mm (9/16″) diameter mast collar post of 14 mm (9/16″)wide mast collar plate/tang