ABRASION RESISTANT PUMP THRUST BEARING

摘要

A centrifugal pump (15) has a stationary diffuser (27) with a bore (33a, 33b, 33c. A thrust bearing 837) has a tubular portion that inserts into the bore. The thrust bearing (37) has an external shoulder (45) that contacts a support surface (47) in the bore (33b, 33c) of the diffuser (27) for transmitting downward thrust from an upstream impeller (29) to the diffuser (27) . The thrust bearing (37) has an internal shoulder (42) for transmitting upward thrust from a downstream impeller to the diffuser (27) .