Progress Capture Pulleys
ISC Progress Capture Pulleys can be used vertically, for lifting and lowering applications and horizontally, for line tensioning. We offer a choice of single or double sheave, available with a choice of standard bushings or one-way locking bearings. One-way locking bearings are ideal for use in lowering applications as they lock when lowering, to provide additional friction and control. Whilst hauling, the bearings rotate freely, keeping friction to a minimum. The cam is used to capture progress and prevent dropping of the load whilst hauling, but can be opened and captivated to allow for smooth lowering.