The ISC brand specialized pulleys are made of aluminium and are therefore lighter. The PCA-1271 has a diameter of 62 mm and a Minimum Breaking Strength of 40 kN.
This is one of our two models of self-locking pulleys available for users seeking to hold a load in position. These are also popular in lifting. They are also very useful in forestry, hunting or for industrial applications.
It features a cam brake system that allows the rope to pass freely in one direction and is blocked in the other. The cam is held by a spring and can be disengaged by pulling a cord.
This aluminium pulley is mounted on a stainless steel shaft and a self-lubricating bearing. The swing side plates are also made of anodized aluminium.
Self-locking pulleys can also be used as standard pulleys; simply block the cam in the open position using the pin provided.
Portable Winch Co. warrants its new products to be free of failure resulting from defective material and workmanship under normal use and service. Warranty Policy
All orders are processed on opening business hours - Monday to Friday - 8:30 a.m. to 5:00 p.m. Eastern Time with the exception of Canada's public holidays. Shipping page
We want you to be pleased with your order. If you are not satisfied, call or write to us within 25 days for authorization to return or exchange your merchandise. Return Policy
The pulleys/snatch blocks (E5) 
The carabiners (E13) 
How to create a mechanical advantage 
