Abstract: A unitized face sealing device comprising first and second annular face sealing rings which can rotate relatively to each other and which have interengaging sealing faces, said rings being located within a unitizing casing, resilient means acting between one of the rings and said casing to apply an axial pressure between said sealing faces, and means for sealing said second ring to said casing said first sealing ring being located on an annular support which is adapted for an interference fit on a shaft, said support being axially spaced away from said second sealing ring and being retained and axially located by said casing.