US PATENT SUBCLASS 384 / 618
.~.~.~ Roller bearing

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}
618.~.~.~ Roller bearing {5}
619  DF  .~.~.~.~> Roller structure or orientation; plural axially spaced rows or tandem thrust
620  DF  .~.~.~.~> Resilient feature; adjustment or self-alignment means; assembling means
621  DF  .~.~.~.~> Race and cage structure
622  DF  .~.~.~.~> Race structure
623  DF  .~.~.~.~> Cage structure

DEFINITION

Classification: 384/618

Roller bearing:

(under subclass 590) Subject matter wherein the rolling friction is from a roller element, e.g., a cylindrical tapered, barrel-shaped, or needle-shaped element.

(1) Note. See subclass 491 for definition of a ball bearing