A sealing assembly to provide sealing between a shaft and a housing comprising: a sealing component comprising a body section, an outer flange, and an inner flange both extending from said body section, said inner flange comprising a sealing area and a sealing lip; a supporting component made of a first material having a first modulus of elasticity value receiving said sealing component and comprising an inner arm projecting into said sealing component, said inner arm providing a supporting area spanning an inner portion of said body section and at least a portion of said inner flange; a locking ring engaging the outer flange of the sealing component and together with the sealing component defining an energizer cavity; a spring energizer disposed in the energizer cavity and biasing against the inner flange and the locking ring; wherein the inner arm has an inner arm edge defining a first inside diameter and a reduced clearance area defining a second inside diameter, which is smaller than the first inside diameter, wherein the reduced clearance area has a second material having a second modulus of elasticity value, which is lower than the first modulus of elasticity value, and characterized in that: wherein (a) the second material, having the second modulus of elasticity value, comprises one or more inserts positioned inside one or more bores or (b) the reduced clearance area is part of an anti-extrusion ring engaged to an inner arm stub of the inner arm and said spring energizer contacts said inner flange of said sealing component where the inner flange is supported by both the inner arm stub and the anti-extrusion ring. a sealing component comprising a body section, an outer flange, and an inner flange both extending from said body section, said inner flange comprising a sealing area and a sealing lip; a supporting component made of a first material having a first modulus of elasticity value receiving said sealing component and comprising an inner arm projecting into said sealing component, said inner arm providing a supporting area spanning an inner portion of said body section and at least a portion of said inner flange; a locking ring engaging the outer flange of the sealing component and together with the sealing component defining an energizer cavity; a spring energizer disposed in the energizer cavity and biasing against the inner flange and the locking ring; wherein the inner arm has an inner arm edge defining a first inside diameter and a reduced clearance area defining a second inside diameter, which is smaller than the first inside diameter, wherein the reduced clearance area has a second material having a second modulus of elasticity value, which is lower than the first modulus of elasticity value, and characterized in that: wherein (a) the second material, having the second modulus of elasticity value, comprises one or more inserts positioned inside one or more bores or (b) the reduced clearance area is part of an anti-extrusion ring engaged to an inner arm stub of the inner arm and said spring energizer contacts said inner flange of said sealing component where the inner flange is supported by both the inner arm stub and the anti-extrusion ring. wherein (a) the second material, having the second modulus of elasticity value, comprises one or more inserts positioned inside one or more bores or (b) the reduced clearance area is part of an anti-extrusion ring engaged to an inner arm stub of the inner arm and said spring energizer contacts said inner flange of said sealing component where the inner flange is supported by both the inner arm stub and the anti-extrusion ring.