Design              Wheels    Bearings      Diam~Base       mTon/Axle File
~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~~~~~~
1930~CommonWealth   Iron      Packed~6.5*12 0.838~2.743     29.8      Bogi~SGF3~A300 
1930~BuckEye        Iron      Packed~6.5*12 0.838~2.743     29.8      Bogi~SGF3~A301 
1948~CommonWealth   Steel     Roller~6.5*12 0.762~2.743     29.8      Bogi~SGF3~A302
1948~BuckEye        Steel     Roller~6.5*12 0.762~2.743     29.8      Bogi~SGF3~A303
1981~BuckEye        Steel     Roller~6.5*12 0.914~3.353     29.8      Bogi~SGF3~A304