{"data":{"id":"us/49-cfr-230.105","jurisdiction":"us","citation":"49 CFR 230.105","heading":"Lateral motion.","body":"(a) Condemning limits. The total lateral motion or play between the hubs of the wheels and the boxes on any pair of wheels shall not exceed the following limits:\nInches\nEngine truck wheels (with swing centers) 1\nEngine truck wheels (with rigid centers) 11⁄2\nTrailing truck wheels 1\nDriving wheels 3⁄4\n(b) Limits increased. These limits may be increased on steam locomotives operating on track where the curvature exceeds 20 degrees when it can be shown that conditions require additional lateral motion.\n(c) Non-interference with other parts. The lateral motion shall in all cases be kept within such limits that the driving wheels, rods, or crank pins will not interfere with other parts of the steam locomotive.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 230—STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS","Subpart C—Steam Locomotives and Tenders"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"331587f3c905eecf2ceadcaea5b30b578fe1e87418c205c9e06a2d800a7c1f23","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-230.104","next":"us/49-cfr-230.106"},"notice":"GroundRules: Original legal text. Not legal advice."}