Ronstan Series 20 Ball Bearing Block - Double, In-Line Boat Cape Dory Typhoon wireless cut-off switch which can

wireless cut-off switch which can be used on all boats

making them perfect companions to the Harken Big Boat blocks

trust that the ResQLink’s satellite precision and military durability

ACR OLAS free Mobile App integration

Ball Bearing versions incorporate our 2-stage bearing system using ball bearings to minimize friction and a secondary full-contact bearing to maintain low friction across the full working load range

Ronstan Series 20 Ball Bearing Block - Double, In-Line Boat Cape Dory Typhoon wireless cut-off switch which canSeries 20 Ball Bearing Block Double, In Line Features: Low friction High static and dynamic load capacity Lightweight Precision molded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance & low friction. Applications: Dinghy control lines Dinghy vangs Cunninghams Traveller controls Dinghy barber haulers Spinnaker pole launching systems Materials: Stainless Steel ball bearings UV stabilized Acetal sheave Grade 316