In order to find out the reason for the bogie frame instability alarm in the high-speed railway vehicle. the influence of wheel tread profile of the unstable vehicle was investigated. By means of wheel-rail contact analysis and dynamics simulation. the effect of tread wear on the bogie frame lateral stability was studied. https://www.bekindtopets.com/top-save-J-D-Manufacturing-Barnstormer-Basket-Fans-great-choice/