Ronstan Series 75 Ball Bearing Stand-up Single Core Block – Swivelling

• Class leading performance and sleek, contemporary styling
• Excellent dynamic and high static load performance
• Less than half the friction of the nearest competitor
• Swivelling head post for full 3-axis articulation
• Strong precision cast padeye base
• Resilient rubber stand-up boot prevents clatter & block falling down when not loaded
• Central hub hole can be used as a becket take-off or tie-up point
• Mount with 4 x 6 mm (1/4″) fasteners (not supplied)

Applications

• Ideal for use on mainsheet, spinnaker sheet, vang, halyard and backstay applications on boats up to 14 m (46)
• General applications on larger yachts
• Alloy sheave models are available for use with wire

Materials

• Sheave: UV stabilised acetal or anodised aluminium (AW models)
• Cheek plates: Aluminium alloy
• Ball Bearings: High compression strength carbon black acetal
• Post & hub: Grade 316 stainless steel
• Padeye: Grade 15.5PH stainless steel

Specifications

• Sheave : 75 mm
• Max Rope : 14 mm
• Max Cable : –
• Pin : –
• MWL: 1500 kg
• BL: 3000 kg
• Weight: 468 g