Forehead seal DO / DF

O-ringmetalelastomer

Mechanical Face Seals are generally used for rotating applications on construction machineries and production plants with components that enable strong resistance to breakage due to severe changes in the environment. Specifically, they are applied on axles, mining and agricultural machines, conveyor facilities, and other heavy duty vehicles. They cover two sets of specifications. The first one is the DO which uses O-Ring as sealing support, and the DF which has an elastomer with a diamond-shaped cross section as a secondary capping. Both are geared with metal seal rings that are mounted on two separate housing in an overlapping seal face. Applications Mechanical Face Seals are predominantly used for sealing the bearings in construction machinery or production plants operating under extremely arduous conditions and subject to severe wear. These include: Tracked vehicles, such as excavators and bulldozers Conveyor systems Heavy trucks Axles Tunnel boring machines Agriculture machines Mining machines Mechanical Face Seals are proven for use in gearboxes, mixers, stirrers, wind-driven power stations and other applications with similar conditions or where maintenance-free lifetime sealing is expected.