An Optimum Mechanical Seal ties in the field of mechanical seals to, among others, naval mechanical seal, a sterntube seal used over many decades in International submarine design, This research resulted in a com- pletely new mechanical seal, the This new seal has been used of several navies since 1984. Every demand made on this type of product, such as resistance to shock, vibration, pressure and corrosion, as well as ease Ship Components Product Range and Services