Tube stock bogies
by Ted Scannell
These are 25mm wheelbase sprung bogies. Inside bearings have been used because it wasn't possible to spring outside bearings within the vertical space of the bogie frame. The height constraint has also precluded secondary springs, so these single-wire equalising beam bogies need to perform a complex of agilities.
A bogie underneath an EFE driving car before sideframes (from the EFE bogie frame) have been fitted.
