reeving

Reeving is a term used in various technical contexts, most commonly in relation to ropes, cables, or belts. It refers to the process of threading or passing a rope, cable, or belt through a series of pulleys, guides, or openings. The purpose of reeving is often to gain mechanical advantage, change the direction of a force, or to distribute a load.

In crane operations, for example, reeving refers to the arrangement of hoist ropes through the drum and sheaves of the crane. The way the rope is threaded, or "reeved," directly affects the lifting capacity and speed of the crane. Different reeving configurations can be employed depending on the specific lifting requirements, such as multiplying the pulling force or achieving a desired line speed.

Similarly, in sailing, reeving describes the process of threading lines or ropes through blocks (pulleys) and fairleads on a boat. This is essential for operating sails, such as adjusting their trim or raising and lowering them. The precise reeving of these lines is critical for sail control and boat performance.

The term can also appear in contexts involving conveyor belts, where the belt is threaded through a system of rollers and pulleys to form a continuous loop. The configuration of this reeving determines how the belt moves and carries material. Understanding the correct reeving procedure is important for efficiency, safety, and the longevity of the equipment involved.