Ronstan Series 40 Ball Bearing Block - Double - Swivel Head [RF40200] Brand_SEEKR by Caframo Rugged construction

Rugged construction

Bring it along - it even floats

and wind sensors

Accommodates transom angles between 2° and 20°

Ronstan Series 40 Ball Bearing Block - Double - Swivel Head [RF40200] Brand_SEEKR by Caframo Rugged constructionSeries 40 Ball Bearing Block Double Swivel Head Features: Low friction Acetal or Torlon bearing system Lightweight Cheek cut outs for easy bearing maintenance Features a swivel shackle head for full 360 rotation 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 range. Applications: Mainsheet Halyard Vang Spinnaker control lines