Apparatus for sealing a water pump bearing

Details Apparatus for sealing a water pump bearing Apparatus for sealing a water pump bearing

2005-03-22

2005-03-22

Footland, Lenard A. (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S482000

Reexamination Certificate

active

06869224

ABSTRACT:
The present invention discloses an apparatus for sealing a water pump bearing in which the bearing comprises a plurality of rolling elements arranged between an inner race and an outer race, a retainer for maintaining a prescribed space between each rolling element, and a seal coupled to a tip end of an opening in the space formed between the inner race and the outer race. The seal comprises a first seal equipped with a first reinforcing frame that is inserted into an inner axial section of bearing, and a second seal equipped with a second reinforcing frame that is inserted into an outer axial section of the bearing for coupling with the first seal. The first seal further comprises a first seal element that is inserted into an inner radial section of the first reinforcing frame and has two seal lips abutted to an inner radial section of the second reinforcing frame, and the second seal further comprises a second seal element that is inserted into an outer radial section of the second reinforcing frame and has two seal lips abutted to a central radial section of the first reinforcing frame, such that leakage of grease in the apparatus is prevented, and moisture, foreign particles and mixtures thereof are avoided from penetrating into the bearing, thereby increasing the durability of the water pump bearing.

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