Cable pulleys, often referred to as sheaves, are integral components in many mechanical systems found in optical labs. These devices help redirect the force applied by a cable, allowing for precise control and movement. In optical labs, precision is paramount. Depending on the application and material, suitable deflection rollers and guide pulleys are required. Carl Stahl Sava Industries has been manufacturing coated steel cable for 50 years now using nylon (PA), vinyl (PVC), Teflon® (FEP), polyurethane (PU) and polyethylene (PE). The benefits to coating cable are many, but largely deal in sealing-in lubricants, in prolonging cable life, achieving a. experience greater amounts of fatigue.