The device which you had sent cd not solve the issues, however i had requested thro my friend who is the fabricator to resolve the issue and he has agreed too.
As a first stage i had given 25 numbers of shaft for rectification and we are expecting back the rectified one by Monday after checking the performance we have decided to do it in phased manner.
In regards to cost of bearing i will send you statement of expenses after the entire work is completed .