Mechanical seal is the evolution of the brass stuffing box, particularly for pleasure yachts and high-speed vessels. The most modern sealing system is water-lubricated and contains an elastic lip seal with very quick and practical replacement method. It also constitutes a reliable and more elegant sealing appliance in the engine room. In HELLENIC PROPELERS LTD, we produce Mechanical Seals in 4 axis CNC mill – turning machine, for all 25 to 115 mm propeller shaft diameters, which we keep available for you in stock. The sales set includes spear seal carrier.