Bearings – Rotary bearing – Antifriction bearing
Reexamination Certificate
2005-04-26
2005-04-26
Footland, Lenard A. (Department: 3682)
Bearings
Rotary bearing
Antifriction bearing
Reexamination Certificate
active
06883970
ABSTRACT:
A thrust bearing includes an annular first retainer, an annular second retainer and a plurality of rollers. The first retainer and second retainer are secured together to form a bearing cage. Each retainer has a circular outer sidewall, a concentric circular inner sidewall, and a web that extends between the outer sidewall and the inner sidewall. The web has a planar interior surface with a plurality of openings each adapted to accommodate a radiused portion of one of the rollers. The use of a web with a planar interior surface, without dividers, provides two advantages. The design leaves a maximum amount of room for rollers in the bearing which increases the bearing's capacity. The assembled cage allows for better lubricant flow to lubricate the bearing and wash potentially abrasive particles away from the rollers.
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598992 Saskatchewan Ltd.
Christensen O'Connor Johnson & Kindness PLLC
Footland Lenard A.
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