DetailsThis best selling Arborist Block features a wide upper bushing to maximize sling strength and wide side plates to protect the rope from abrasion. One-piece design eliminates lost parts. 3" lower sheave will accept bull ropes up to 3/4" diameter. Stainless steel side plates, aluminum bushing, and zinc-plated steel axle means this pulley stands up to the elements as well as the load.WLL 4,000 lb. Breaking Strength 40,000 lb.Note: With this style of block, care must be taken that the relatively sharp side plates do not contact the rope.Specifications Manufacturer: CMIMaximum rope diameter: 18mm (3/4")Sheave diameter: 101.6mm (4")Tensile strength: 177.9 kN (40,000 lb)Material: stainless steelDimensions: 5 x 7 x 1.7"Weight: 5.625 lbMade in the USA
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