(under subclass 35) Wherein the structure is of the roller itself.
(1) Note. See Class 384, Bearings, subclass 549 for a roller bearing on a fixed support.
(2) Note. See Class 474, Endless Belt Power Transmission Systems or Components, particularly subclasses 166+ for friction drive pulleys or guide rolls.
(3) Note. See Class 198, Conveyors: Power-Driven, subclasses 501, 824+ and 842 for support rollers for endless belt conveyors.
(4) Note. See Class 492, Roll or Roller, for a roll, per se, not elsewhere provided for, and see the notes thereunder.
