![Ronstan Series 40 Ball Bearing Block - Single - Stand Up [RF40140]](https://cdn.shopify.com/s/files/1/0457/6044/6616/products/55211XL.jpg?v=1644559339)
Ronstan Series 40 Ball Bearing Block - Single - Stand Up [RF40140]
Series 40 Ball Bearing Block - Single - Stand UpSheaves 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.Captive Lock universal head can be fixed in either of two planes, or free to swivel as required.Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock universal head High static and dynamic load capacity Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26') Materials: U.V. Stabilized Acetal sheaves Acetal ball bearings Impact and U.V. resistant, fiber reinforced Nylon cheeks Grade 316 stainless steel load strap and head fitting Specifications:Sheave Ø:t40mm(1-9/16")Max. Rope Ø:t10mm(7/16")M.W.L.:t350kg(770lbs)B. L.:t800kg(1,7600lbs)Weight:t71g(2.5oz)