Ronstan Series 60 BB Mast Base Block – Clevis Pin Head

Ronstan Series 60 Ball Bearing Mast Base Block, Clevis Pin Head – RF64108A

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

Applications

• Ideal for mainsheet, halyard and spinnaker sheet applications on boats to 11 m (36 ft)
• Various control line applications on larger yachts
• Alloy sheave models are available for use with wire

Materials

• Sheaves: UV stabilised Acetal
• Cheek plates & cleat arms: Aluminium alloy
• Ball Bearings: High compression strength carbon black Acetal
• Shackle, post & hub: Grade 316 stainless steel
• Padeye & snap shackle: Grade 15-5PH stainless steel
• Snap shackle: Grade 15-5PH investment cast stainless steel
• Cleat: Fibre reinforced composite
• Pin: 2205 stainless steel

Specifications

• Sheave Ø: 60 mm
• Max. Rope Ø: 12 mm
• Max. Cable Ø: – mm
• Pin Ø: 8 mm
• MWL: 1000* kg
• BL: 2000* kg
• Weight: 182 g