... 420x200, 420x220 track:1840 stud:6-M20x2 Technical Parameters of Spoke Axle SeriesModelNumberCapacity(t)Brake (mm)AxleTube (mm)Wheel FixingTrack ... " and 3.5", weldable and bolton),3) suspensions (bogie, spoke bogie, American suspension and German suspension etc),4) axles (American ... axle, American axle, inboard drum axle, outboard drum axle, Spoke axle(spider axle), concave axle, low loader axles. etc. ...