Series 20 Ball Bearing Block - Single. Low friction, high static and dynamic load capacity and lightweight. Precision-molded acetal sheaves running on stainless steel or Torlon ball bearings provide high performance and low friction. Constructed with UV-stabilized acetal sheaves, stainless steel ball bearings, Grade 316 stainless steel load strap and head fitting, and impact- and UV-resistant fiber-reinforced nylon cheeks. Applications include dinghy control lines, dinghy vangs, cunninghams and traveller controls. Specifications include a 20mm (3/4") sheave, max rope diameter ~6mm (1/4"), pin Ø ~3mm (1/8"), compact low-weight design for easy rigging and dependable performance in marine environments.
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