supply of double row deep groove ball bearing ,skf no.4306 atn9 or similar rdso approved brands for auxiliary machine bearing (including 3 phase locomotives and emus) .double row deep groove ball bearing ,skf no.4306 atn9 or similar rdso approved brands for auxiliary machine bearing (including 3 phase locomotives and emus) .,double row deep groove ball bearing ,skf no.4306 atn9 or similar rdso approved brands for auxiliary machine bearing (including 3 phase locomotives and emus) [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted : max 8 lacs ] ]