Abstract: A semi-cartridge seal is provided incorporating two components each comprising a plurality of preassembled parts. The first component includes an annular holder for snug but slidable positioning along a shaft and loosely supports an annular seal face structure therefrom with an O-ring seal forming a fluid tight seal between the seal face structure and the annular holder, centering the seal face structure relative to the annular holder and frictionally resisting rotation of the sell face structure relative to the annular holder, the latter being sealed relative to the associated shaft.

Abstract: A bearing protector is provided for forming a seal between a rotating shaft and a housing opening outwardly through which the shaft projects. The protector comprises a component consisting of a plurality of preassembled components and is constructed in a manner such that it may be pressed fitted into operative association with a rotating shaft and a corresponding housing portion independent of any flexure of the protector parts which deters the sealing ability thereof.