Ronstan Series 40 Ball Bearing Block - Single - Universal Head

Series 40 Ball Bearing Block - Single - Universal Head. 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. 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; Slotted pin shackle eliminates fouled lines. 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.

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