Lubricated ceramic/hybrid anti-friction bearing centrifugal pump

Details Lubricated ceramic/hybrid anti-friction bearing centrifugal pump Lubricated ceramic/hybrid anti-friction bearing centrifugal pump

1998-02-19

2000-04-11

Look, Edward K.

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

415102, 415104, 415 98, 415180, 4152141, 415229, 415230, F01D 2522

Patent

active

060481684

ABSTRACT:
A pump assembly for conventionally driven centrifugal pumps having a rolling element comprised of product lubricated ceramic or hybrid anti-friction bearings. The ceramic bearings are comprised of ceramic balls and ceramic races, whereas the hybrid bearings are comprised of ceramic balls with races made of another material. The ability of these bearings to perform well with poor lubrication allows the fluid that is being pumped to be used to lubricate and cool the bearings. An alternate embodiment comprises a double suction pump with the same durability and cost saving advantages.

REFERENCES:
patent: 3457869 (1969-07-01), Janetz
patent: 4799810 (1989-01-01), Gilbert
patent: 5228786 (1993-07-01), Tanimoto et al.
patent: 5302091 (1994-04-01), Horiuchi

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