Ronstan Ball Bearing, Series 75 - Triple

SKU: RF70300

Sale price$451.00 Regular price$475.17


Blocks can be disassembled for servicing or customisation.Head can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position.


  • Low friction, 2-stage ball bearing system
  • High static and dynamic load capacity
  • Lightweight
  • Cheek cut-outs for easy bearing maintenance
  • Lockable swivelling head post
  • High strength forged shackle


  • Mainsheet sheets on boats to 11m (36ft)
  • Various control line applications on larger yachts


  • Carbon black Acetal ball bearings
  • U.V. stabilised Acetal sheaves
  • Alloy cheeks
  • Grade 316 stainless steel forged shackle
  • Grade 316 stainless steel bearing linner

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