List of railroad truck parts

From Infogalactic: the planetary knowledge core
(Redirected from Journal box)
Jump to: navigation, search

Lua error in package.lua at line 80: module 'strict' not found.

A diagram of an American-style truck showing the names of its parts

Axlebox

Also called an axle box, or Journal Box in North America.[1] This refers to the assembly of the truck or bogie which housing the end of the axle. Early axleboxes contained friction bearings, in which the axle spun in a bed of oil. Friction Bearings are now illegal in interchange service in the United States; modern axleboxes use roller bearings.[2][3] As early as 1908 they contained a set of long cylindrical rollers allowing the axle to rotate.[4][5] 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.[4][dubious – discuss]

Center pin

A large steel pin—or rod—which passes through the center plates on the body bolster and truck bolster.[6] The truck turns about the bolt, and stress is taken by the center plates.[6]

Center plate

One of a pair of plates which fit one into the other and support the car body on the trucks allowing them to turn freely under the car.[6] The one on the truck may also be called center bowl.[7]

Truck side frame

The frame at either side of the truck.[2][3]

Truck bolster

Each truck has a bolster—a transverse floating beam—between the side frames.[8] 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.[6][8]

Image gallery
A journal box 
A German axlebox 
This Bettendorf-style freight car truck uses journal bearings in journal boxes. It also shows the center pin. 
Railroad car wheels are affixed to a straight axle, such that both wheels rotate in unison. This is called a wheelset. 
An archbar-type truck with journal boxes 
A diamond truck with axle boxes 

See also

<templatestyles src="Div col/styles.css"/>

References

<templatestyles src="Reflist/styles.css" />

Cite error: Invalid <references> tag; parameter "group" is allowed only.

Use <references />, or <references group="..." />

Further reading

  • US Army Field Manual FM 55-20, Figure 8-8, Department of the Army, Washington DC
  • Car and Locomotive Cyclopedia 1970
  • Lua error in package.lua at line 80: module 'strict' not found.
  • Lua error in package.lua at line 80: module 'strict' not found.
  • Lua error in package.lua at line 80: module 'strict' not found.

<templatestyles src="Asbox/styles.css"></templatestyles>

Stub icon

This rail-transport related article is a stub. You can help Wikipedia by expanding it.
  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ 6.0 6.1 6.2 6.3 Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.
Retrieved from "https://infogalactic.com/w/index.php?title=List_of_railroad_truck_parts&oldid=723122497#Journal_box"