Ronstan Series 20 HL BlocksRonstan

RONSTAN Blocks - High Load Size 20 - Overview

Ultimate High & Static Load Performance - Ronstan Series 20 High Load Blocks are based upon the same race winning design concept as the Ronstan high performance Ball Bearing blocks, but utilise a full contact bearing for ultimate performance in high load or prolonged static load applications.

The Ideal Block for High Load Applications - Wear resistant sheave materials, either in lightweight, self lubricating polymer or in alloy with special purpose bushes, are suitable for use with rope or wire. High Load blocks provide outstanding static load performance and are typically used for halyards, backstays, etc.


  • Dinghy control lines
  • Dinghy vangs
  • Cunninghams
  • Traveller controls
  • Halyards
  • Backstays

  • Nylatron® sheave
  • Grade 316 stainless steel load strap and head fitting
  • Impact and U.V. resistant, fibre reinforced Nylon cheeks

  • Currency:
    RONRF20000HL - Ronstan Series 20 HL Sheave, Nylatron, OD20mm x W9mm x ID8mm
    Code: RONRF20000HL
    Original Price: $10.95
    Price: $9.61
    RONRF20101HL - Ronstan Series 20 HL Block, Single Loop Top
    Code: RONRF20101HL
    Original Price: $20.95
    Price: $18.36

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