Ronstan Series 40 Ball Bearing Block - Double - Becket - Swivel Head
Series 40 Ball Bearing Block - Double - Becket - Swivel Head
Low friction Acetal or Torlon¬Æ bearing system
Cheek cut-outs for easy bearing maintenance
Sheaves running on Acetal or Torlon¬Æ ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Features a swivel shackle head for full 360¬∞ rotation.
Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)