... of the shaft 3, for engine driven pump and motor driven pumps this seal RM F is made by ourselves ... engine, it is a motor shaft seal2, long life and easy assembly3, ISO9001 Certifacate passed4, materials: carbon,ceramic, ... speed rotationthese seals are incorporated in automotive water pumps,hot water circulating pumps, general purpose pumps and various types of industrial machinery. EH790 Mechanical ...