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![Ronstan Series 40 Ball Bearing Block - Double - Swivel Head [RF40200] Marine Plumbing & Ventilation | Marine Sanitation Battery back-up systems](https://cdn.shopify.com/s/files/1/0528/1185/8120/products/70616XL.jpg?v=1614770480)
Battery back-up systems
Three modes of operation - Fill
Max Thrust: 45 lbs
Raw Lumens: 47520
410 and ISO 8846 MARINE (Ignition Protection)
Ronstan Series 40 Ball Bearing Block - Double - Swivel Head [RF40200] Marine Plumbing & Ventilation | Marine Sanitation Battery back-up systemsSeries 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
