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Product Details

Ronstan Series 20 Ball Bearing Blocks are the perfect choice for all types of dinghy control line applications. Precision molded Acetal sheaves running on stainless steel or Torlon ball bearings deliver top performance with low friction. Also features 316 stainless load straps and head fittings, and UV stabilized Zytel cheeks.

Sheave Dia.: 3/4" (20mm)
Max. Rope: 1/4" (6mm)

Tech Specs
Product Number Description Maximum Load. (lb.) Block Load. (lb.)
RON-RF20100 Single, swivel shackle head5501210
RON-RF20101 Single, loop head5501210
RON-RF20111 Single, becket, loop hea5501210
RON-RF20141 Single, stand-up w/spring5501210
RON-RF20151 Single, cheek5501210
RON-RF20151A Single, cheek, rivet mount4401210
RON-RF20180 Single, swivel hook head300590
RON-RF20184 Single, loop mount5501210
RON-RF20202 Double, 2-axis shackle head 7701540
RON-RF20212 Double, becket, 2-axis shackle head7701540
RON-RF20281 Double, in-line 5501210
RON-RF20284 Linked blocks, S20 & S205501210
RON-RF20302 Triple, 2-axis shackle head8801870
RON-RF20312 Triple, becket, 2-axis shackle head8801870
RON-RF20332 Triple, becket, cam cleat, 2-axis shackle head8801870
Info & Guides

Technical Information

Features:

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

Applications:

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