... 420x200, 420x220 track:1840 stud:6-M20x2 Technical Parameters of Spoke Axle SeriesModelNumberCapacity(t)Brake (mm)AxleTube (mm)Wheel FixingTrack L1 ... kinds of semi trailer axle are available, such as BPW type axle, American axle, inboard drum axle, outboard drum axle, Spoke axle(spider axle), concave axle, low loader ... Ningbo Pacemaker International Trading Co., Ltd German type Semi Trailer spoke Axle