Our Mechanical Face Seals, also known as floating seals, face seals, Duo-Cone™ seals, lifetime seals, heavy-duty seals, or toric seals, are widely used in heavy-duty rotational applications, particularly in environments exposed to harsh conditions, such as dirt, dust, mud, water, and aggressive fluids. These seals are designed to withstand severe wear and resist abrasive and corrosive media. Mechanical Face Seals are reliable sealing components that promote uninterrupted operations, prolong maintenance intervals, and contribute to the overall longevity of machinery and equipment.

We offer two types of Mechanical Face Seal profiles: DO Type and DF Type.

DO type is the most common type that employs an O-ring made of elastomer material for the secondary seal. The DO profile requires less radial space within the application. It delivers excellent stability in the housing prior to final assembly and excellent end-play capability.

DF type features a diamond or trapezoidal elastomer ring as a secondary seal. The DF profile requires less axial space within the application and fits into a square bore housing cavity, which reduces machining time. No assembly tool or lubricant is required during installation.

See our mechanical face seals literature and flyer for more information.