(under subclass 5.1) Wheel for attachment to either the wheel or the axle and cooperating with the other for excluding dust, sand, and dirt from the wheel and axle bearing.
SEE OR SEARCH CLASS
277, Seal for a Joint or Juncture, for a generic sealing means or process,
500+, for a dynamic, circumferential, contact seal for other than a piston.
384, Bearings,
157, 262 and 460, where means are provided to exclude dust, etc., from the bearing.
