Precision-engineered sheaves designed for accurate length measurement of cables, wires, ropes, and similar products. Typically manufactured from lightweight, durable aluminium for reduced inertia, with a wear-resistant polyurethane (PU) coating on the circumference to ensure reliable grip, protect the product surface, and maintain measurement accuracy. Precision-engineered sheaves designed for accurate length measurement of cables, wires, ropes, and similar products. Typically manufactured from lightweight, durable aluminium for reduced inertia, with a wear-resistant polyurethane (PU) coating on the circumference to ensure reliable grip, protect the product surface, and maintain measurement accuracy.