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Ralph - Saucier, MS
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5/8" Pulleys and Arborist Blocks
5/8” capacity blocks and pulley are a good choice for everyday rigging situations. Good ropes to use with a 5/8” pulley or block are 5/8” Samson Stable Braid, and 5/8” Husky Double Braid. We carry a wide selection of pulleys and blocks in this size, including double sheave pulleys, prusik minders, and true arborist blocks, like the aluminum Hobbs block. For More Information on using blocks and pulleys in tree work, check out the Art and Science of Practical Rigging.Please note that Working Load Limits (WLL) are listed at 10% of the Breaking Strength (Breaking Strength.) This is a safer ratio to use than the 5:1 ratio commonly used for lifting applications, as tree work involves the risk of shock loading, and it is the same ratio used when calculating the Working Load Limit of Arborist Rope.
4” Heavy Duty Stainless Steel Pulley
One of our most popular pulleys, this offers substantial safe working loads and breaking strengths at an affordable price. Choice of bushing or bearing. Stainless steel side plates & axle, bushing or bearing, 4” aluminum sheave.
WLL 2,000 lb. Breaking Strength 20,000 lb.
4” Stainless Steel Double Sheave Pulley
Stainless steel side plates & axle, bushing, lower becket, & double 4” aluminum sheaves.
WLL 2,500 lb. Breaking Strength 25,000 lb.
3” Medium Pulley
Aluminum side plates, sheave, bushing, and an economical choice. Available in a double sheave version with lower becket.
WLL 765 lb. Breaking Strength 7,650 lb.
Heavy Duty Stainless Steel Pulley
Stainless steel side plates & axle, aluminum sheave. Available with 3” aluminum sheave and bushing (RP105) or 4” aluminum sheave and bearing (RP108).
WLL 1,600 lb. Breaking Strength 16,000 lb.
2 3/8” Pulley
The classic pulley from CMI. Stainless steel side plates & axle, 2 3/8” aluminum sheave, bushing. Available in a regular version or a “Cable-Able” versions which can be used on wire rope.
WLL 850 lb. Breaking Strength 8,500 lb.
2 3/8” Double-End Pulley
A lower becket offers many possibilities on this pulley. Stainless steel side plates & axle, 2 3/8” aluminum sheave, bushing. Available in a regular version or a “Cable-Able” versions which can be used on wire rope.
WLL 850 lb. Breaking Strength 8,500 lb.
