Roller Bearing Type Nu 311 Ecj, Makes Mentioned In The Bill Of Materials Of Rdso Spec. No. Rdso/Pe/Spec/ Tl/0054-2003 (Rev. 0) With Amndt. No. 1 &2. I.E., M/S Nsk/Japan, M/S Skf (Germ Any/Austria) & M/S Fag (Germany/India) ]