List of railroad truck parts
Also called an axle box, or journal box in North America, an axlebox is the truck or bogie assembly that houses the end of the axle. Early axleboxes contained plain bearings in which the axle spun in a bed of oil. Plain bearings are now illegal in interchange service in the United States; modern axleboxes use roller bearings. As early as 1908 they contained a set of long cylindrical rollers allowing the axle to rotate. It was also used on steam locomotives such as the Victorian Railways A2 class, the LMS Garratt, the LSWR 415 class, and the GCR Class 1.[dubious ]
Truck side frame
Each truck has a bolster—a transverse floating beam—between the side frames. It is the central part of every truck on which the underframe of the railcar or railroad car is pivoted through the center pivot pin.
An archbar-type truck with journal boxes
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- US Army Field Manual FM 55-20, Figure 8-8, Department of the Army, Washington DC
- Car and Locomotive Cyclopedia 1970
- Forney, Matthias N. (1879). The Railroad Car Builder's Dictionary. Dover Publications.
- White, John H. (1978). The American Railroad Passenger Car. Baltimore, MD: Johns Hopkins University Press. ISBN 0801819652. OCLC 2798188.
- White, John H. Jr. (1993). The American Railroad Freight Car: From the Wood-Car Era to the Coming of Steel. Baltimore: Johns Hopkins University Press. ISBN 0-8018-4404-5. OCLC 26130632.
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