Ronstan Series 40 BB Block, Fiddle, Cleat

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Sheaves running on Acetal or Torlon ® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load rang e.Captive Lock's universal head can be fixed in either of two planes, or free to swivel as required. Quick adjusting cleat arms require no tools to adjust and fix securely in position.Our Part # RON-RF40520 | Ronstan Part # RF40520 Show more