US lawFederal (United States)RegulationsTitle 49 CFR — TransportationChapter II — FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATIONPart 229 — RAILROAD LOCOMOTIVE SAFETY STANDARDSSubpart C — Safety Requirements229.6449 C.F.R. § 229.64Plain bearings.Last amended: 2017Year: 2026Length: 22 wordsOfficial source Cite as 49 C.F.R. § 229.64 (2026)A plain bearing box shall contain visible free oil and may not be cracked to the extent that it will leak oil.Previous49 C.F.R. § 229.63Next49 C.F.R. § 229.65