Analysis of measurements of a set of wheelsets profile - Turned to R.D.4 which are to be used in service on B.4 bogies (TN-DYN-81)

Four wheelsets were measured after being turned to Profile R.D.4. Drawing No. ERS10129, prior to fitting to B4 bogies and running in service. It is hoped that a further four wheelsets will be produced to rather greater accuracy so that an assessment can be made of the tolerance range necessary...