Unitized product seal for pumps

Details Unitized product seal for pumps Unitized product seal for pumps

1995-03-31

1996-09-24

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

415113, 415229, 415230, 415231, 277 35, 277 50, 277105, 277153, F04D 2912

Patent

active

055584918

ABSTRACT:
A unitized roller-seal for sealing centrifugal pump shafts which may be readily repaired and maintained in the field or plant. The unitized roller-seal includes a housing having a bore therethrough with an inner radial flange, a sealed roller bearing seated within the bore on one side of the radial flange within the housing, a lip seal member seated within the bore on the other side of the inner radial flange within the housing. The unitized roller-seal is secured and sealed to the pump casing. The pump shaft is rotatably supported in a sealed bearing housing, and extends through the roller bearing and lip seal member of the roller-seal such that the roller-seal stabilizes the shaft juxtaposed to the sealing surface where the lip seal member engages the shaft. The shaft may have an integral sleeve extending within the unitized roller-seal with a hard coated surface for engagement by the lip seal member.

REFERENCES:
patent: 3711218 (1973-01-01), Kennel et al.
patent: 3796510 (1974-03-01), Korrenn et al.
patent: 5174583 (1992-12-01), Orlowski et al.

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