Bearing assembly for use with water pumps

Details Bearing assembly for use with water pumps Bearing assembly for use with water pumps

1999-08-23

2001-01-02

Footland, Lenard A. (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S512000, C384S523000, C384S547000

Utility Patent

active

06168316

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a bearing assembly for use with water pumps, particularly water pumps of internal combustion engines.
BACKGROUND OF THE INVENTION
A known form of bearing assembly is composed of a shaft or spindle extending through a bearing ring in which the spindle and the bearing ring have complementary axially-spaced raceways in which there are sets of rolling elements, typically balls, in angular contact with the raceways providing a double-row bearing. The rolling elements of the bearings are all spaced apart with cages so that the two bearings are identical. During use, when the spindle is driven by a belt-and-pulley to rotate and drive a water pump, the drive input bearing associated with the belt and pulley tends to experience high load and excessive temperature and bearing failure can occur.
An object of the invention is to provide an improved bearing assembly.
SUMMARY OF THE INVENTION
According to the invention there is provided a rotary bearing assembly for use with a motor vehicle water pump; said assembly comprising:
a shaft or spindle extending axially through a ring, the inner periphery of the ring and the outer peripheral region of the spindle within the ring being provided with a pair of spaced apart complementary rolling-element contacting raceways or tracks containing rows of rolling-elements (balls or rollers) in rolling contact with the raceways, wherein one row of rolling elements and raceways constituting a first rotary bearing has the balls arranged as a full complement with the rolling elements in contact with one another and the other row of rolling elements and raceways constituting a second rotary bearing has the balls spaced apart with a cage.
The first bearing is intended to be used as the drive input of the spindle and the second bearing is then used on the driven output of the spindle. In use, the drive input to the spindle is provided by a belt-and-pulley and the drive output for the spindle is coupled to an impeller which is part of a pump.
The invention may be understood more readily, and various other aspects of the features of the invention may become apparent, from consideration of the following description.


REFERENCES:
patent: 5226737 (1993-07-01), Sandy, Jr.
patent: 0328496 (1989-08-01), None
patent: 0586776 (1994-03-01), None
patent: 2088480 (1982-06-01), None

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