US PATENT SUBCLASS 384 / 613
.~.~.~.~ Plural rows balls or tandem thrust

Current as of: June, 1999
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384 /   HD   BEARINGS

91  DF  ROTARY BEARING {8}
445  DF  .~ Antifriction bearing {9}
590  DF  .~.~ Thrust bearing {11}
609  DF  .~.~.~ Ball bearing {8}
613.~.~.~.~ Plural rows balls or tandem thrust

DEFINITION

Classification: 384/613

Plural rows balls or tandem thrust:

(under subclass 609) Subject matter having more than one axially spaced row of balls, which may or may not have means to distribute force among the rows.

(1) Note. The rows of balls are often with a common race.