Pulleys have lots of uses, but most often they are used in the climbing system or for lowering cut wood out of a tree. They come in a variety of designs and colors, and are generally small. If you are going to suspend yourself from a pulley, the one you use should be rated for over 5,000 pounds. A pulley with a lighter load limit can be used for light duty, such as advancing a friction hitch. Climbers should never use a pulley that has been used for lowering loads for life support.
Specific uses for small pulleys call for different types:
- Advancing a climber’s hitch uses a one, two, or three-hole pulley, depending on what kind of climbing system you are using.
- Advancing a hitch on a lanyard use a single-hole pulley. Some climbers duplicate their main hitch-pulley climbing system so they will have a spare part if they drop one of the pieces of their main climbing system.
- Hauling tools or equipment into a tree uses a single-hole pulley or one that has a cam (a “progress capture” pulley) for raising (clicked “off” for lowering).
- Creating mechanical advantage for lifting or pulling trees down uses a couple of single pulleys or double roller pulleys.
- Lowering cut pieces of wood uses a pulley block alone or in pairs, depending on your rigging situation. You can use a smaller pulley with a built-in swivel for lowering smaller pieces.
- Lifting and lowering a victim during a rescue can be done with any pulley rated for life support.
New pulleys are being created every year. Look closely at what the different models can do so you don’t end up with a box full of sparkling gear that sits unused in your garage.
See "Gear Rater" reviews for PULLEYS.