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Freight Car Components

 

 

The Andrews Freight Car Truck

 

The USRA specified 3 different varriations of the same Andrews design for all its 100,000 freight cars differing in its weigh capacity. In its specifications the USRA usually permitted at least three alternative designs for many of the compentents, with one being recommended. In practice most of the builder use the same designs. For expample the truck Frames could either be (1) Cast steel side frames of U-section members with M.C.B. standard removable journal box (2) Cast steel side from of U-section members with journal box cast integral, or (3) arch bar type. In parctice all cars were built with cast steel U-section side frame.

 

  40 Ton 50 Ton 70 Ton
Used on Double sheathed Box Car

(1) Single Sheathed Box Car

(2) Composite Gondola

(3) Twin steel hopper

L.S. Gondola with wood floor
Wheel Base
5' 6"
5' 6"
5' 8"
Distance, center to center of journals
6' 4"
6' 5"
6' 46
Size of Journals
5" x 9"
5-1/2" x 10"
6" x 11"
Diameter of wheels
33"
33"
33"
Carry capacity per pair over than above light weight of car
88,000 lbs.
121,000 lbs.
154,000 lbs.
       
       
       

 

 

Five Manufacturers were used for building the bolsters and side frame:

 

Manufacturer Cast Steel Truck Bolsters Cast Side Frames
American Steel Foundries
46,000
35,000
Buckeye Steel Castings Co
21,000
14,500
Scullin Steel Company
21,500
16,000
Gould Coupler Co.
8,000
6,500
Bettendorf Co.
3,000
28,000
Totals
99,500
100,000

(Source: The Iron Trade Review June 20, 1918)

 

Not sure why the 500 short on the truck bolsters

 

 

USRA Drawing number for the various truck components

 

USRA trucks drawing number

(Source: Railway Review February 15, 1919)

 

Render-50 ton truck used on single sheathed box car and composite hopper

 

(click on the image for a larger view)

 

USRA Single Sheathed Box Car Andrews Truck

 

 

 

September 3, 2015