Ronstan Series 50 BB / HL Blocks


RONSTAN Blocks - High Load Size 50 - Overview

Ultimate High & Static Load Performance - Ronstan Series 50 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.


  • Mainsheet
  • Spinnaker sheets
  • Halyards and other primary applications on boats up to 10m (33ft)

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

  • Currency:
    Code: RONRF2450
    Original Price: $54.95
    Price: $46.69
    Code: RONRF50000HL
    Original Price: $28.80
    Price: $24.49
    Code: RONRF50100HL
    Original Price: $66.90
    Price: $56.89
    Code: RONRF50171
    Original Price: $54.60
    Price: $46.39
    Code: RONRF50171HL
    Original Price: $72.95
    Price: $61.99
    Code: RONRF6170
    Original Price: $69.95
    Price: $59.49
    Code: RONRF6171
    Original Price: $87.50
    Price: $74.39

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