Ronstan Series 20 Ball Bearing Block - Double, In-Line [RF20281]

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Series 20 Ball Bearing Block - Double, In-Line


  • Low friction
  • High static and dynamic load capacity
  • Lightweight

Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction.


  • Dinghy control lines
  • Dinghy vangs
  • Cunninghams
  • Traveller controls
  • Dinghy barber haulers
  • Spinnaker pole launching systems


  • Stainless Steel ball bearings
  • UV stabilized Acetal sheave
  • Grade 316 Stainless Steel load strap and head fitting
  • Impact and UV resistant, fiber reinforced Nylon cheeks

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