Ronstan Ball Bearing, Series 30 - Linked with Series 20mm Block boatcare Powder coat finish

Powder coat finish

Spares to suit shoosh valves

and nitrile rubber diaphragms

Telescopic closure to only 350mm length for simple storage

Rounded door for original equipment aesthetics with no sharp edges to catch clothing or crew

Ronstan Ball Bearing, Series 30 - Linked with Series 20mm Block boatcare Powder coat finishSheaves 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. Features: Low friction 2 stage ball bearing system provides consistent performance over the full working load range. High static and dynamic load capacity. Light weight Versatile head fittings Applications: Primary lead blocks on dinghies and catamarans Control lines on