Protected seal assembly and protective filter unit therefor

摘要: A protective filter unit for use with a fluid seal assembly. The includes screen positioning and extending inwardly of portions the terminating in an inner edge spaced just apart by working clearance from shaft forming part sealed mechanism. is associated having casing which may be aligned filter, elastomeric body defining band engages another portion bonded to casing. Preferably outer support rings held spacers, rings, are all made plastic materials.