49 CFR 229.73 - Wheel sets.

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There is 1 rule appearing in the Federal Register for 49 CFR 229. View below or at eCFR (GPOAccess)
§ 229.73 Wheel sets.
(a) The variation in the circumference of wheels on the same axle may not exceed 1/4 inch (two tape sizes) when applied or turned.
(b) The maximum variation in the diameter between any two wheel sets in a three-powered-axle truck may not exceed 3/4 inch, except that when shims are used at the journal box springs to compensate for wheel diameter variation, the maximum variation may not exceed 11/4 inch. The maximum variation in the diameter between any two wheel sets on different trucks on a locomotive that has three-powered-axle trucks may not exceed 11/4 inch. The diameter of a wheel set is the average diameter of the two wheels on an axle.
(c) On standard gauge locomotives, the distance between the inside gauge of the flanges on non-wide flange wheels may not be less than 53 inches or more than 531/2 inches. The distance between the inside gauge of the flanges on wide flange wheels may not be less than 53 inches or more than 531/4 inches.
(d) The distance back to back of flanges of wheels mounted on the same axle shall not vary more than 1/4 inch.

Title 49 published on 2013-10-01

The following are only the Rules published in the Federal Register after the published date of Title 49.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-04-17; vol. 79 # 74 - Thursday, April 17, 2014
    1. 79 FR 21636 - Locomotive Safety Standards
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Railroad Administration
      49 CFR Part 229

Title 49 published on 2013-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 49 CFR 229 after this date.

  • 2014-04-17; vol. 79 # 74 - Thursday, April 17, 2014
    1. 79 FR 21636 - Locomotive Safety Standards
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Railroad Administration
      49 CFR Part 229