How does a thimble function when used with wire rope?

In the context of rigging with wire rope, a thimble serves a specific purpose. A thimble is typically a small, rounded piece of metal that is used in conjunction with wire rope to help maintain the shape of a loop at the end of the wire. The presence of a thimble reinforces this loop and allows for proper weight distribution throughout the wire rope, ensuring it can handle tension and load effectively.

The key function of a thimble is to protect the wire rope from abrasion and wear that could occur when it bends at the loop or when it is subjected to friction against other surfaces. This protection is critical in prolonging the life of the wire rope, as it prevents the strands from fraying or being damaged by repetitive use.

In contrast, the option indicating that a thimble adds weight does not accurately reflect its primary role in a rigging system, which is more focused on maintaining integrity and safety rather than adding mass. Additionally, while some may think of a thimble as a device to create a loop, this functionality is not as central to its purpose as the protection it offers. It is less about securing a knot and more about ensuring that the wire rope maintains its structural integrity under load.