(under subclass 416) Subject matter wherein the bearing is for a rotary element having a cylindrical outer surface, or an outer surface shaped to engage a track.
SEE OR SEARCH CLASS
193, Conveyors, Chutes, Skids, Guides, and Ways, for general assembly of rolls, or the structure thereof.
198, Conveyors: Power-Driven, for general assembly of rolls, or the structure thereof.
492, Roll or Roller,
16+, for a roll, per se, not elsewhere provided for, in which the outer surface of the roll is rotatable relative to its supporting shaft.
