Seal Assembly with Detachable Spacer Members

A seal assembly includes an annular inner casing disposed on a shaft and including an axial portion and two radial portions. An annular outer casing is disposed about the inner casing and includes anaxial portion engageable with the body bore and a radial portion. An annular elastomeric seal member is coupled with the first radial portion of the inner casing and is engageable with the outer casing axial portion. An annular bumper has a fixed end coupled with the outer casing radial portion and a free end disposed adjacent to the inner casing second radial portion. At least one spacer extendsfrom the bumper free end and is disposed against the inner casing second radial portion or within an opening through the inner casing second radial portion. The spacer(s) are detachable from the bumper when one of the inner and outer casings angularly displaces relative to the other casing. 种密封组件，包括：环状的内壳体，其设置在轴上并包括轴向部和两个径向部。环状的外壳体绕着内壳体设置并包括径向部和能够与主体的孔接合的轴向部。环状的弹性体的密封构件与内壳体的第径向部联接并能够与外壳体的轴向部接合。环状的缓冲件具有固定端和自由端，固定端与外壳体的径向部联接