Series 50 Ball Bearing Block - Single Loop TopSheaves 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.Features:Low friction, 2-stage ball bearing system; High static and dynamic load capacity; Lightweight; Cheek cut-outs for easy bearing maintenance; Specifications:Max. Rope diameter (in): 1/2"; M.W.L. (lb): 1100lbs; Sheave diameter (in): 2"; B.L. (lb): 3310lbs; Weight (oz): 3.4oz; Materials: Acetal ball bearings; UV-stabilized acetal sheave; Grade 316 stainless steel load strap and head fitting; Impact and UV-resistant, fiber-reinforced nylon cheeks; - cis2:mm5mnJlm -