The material of the sheave is a crucial factor, as it is the point of contact with the conductor. Neoprene-lined aluminum alloy sheaves and high-strength nylon sheaves are preferred for several reasons:

• Conductor Protection: These materials provide a cushioned surface that protects the conductor's outer strands and jacketing from damage, especially during high-tension pulling.

• Reduced Friction: They help to minimize friction, ensuring a smoother stringing process.

• Lightweight Durability: Aluminum alloy and nylon offer a combination of lightweight construction for easy handling with the necessary strength and durability for demanding overhead line projects.