Oil Seal (Cr 90 X 120 X12 Crw1 V ) As Per Rdso Modification Sheet No-Mp. Mod. Em. 01. 08.09 Dated: 02.04.2009 For Providing In Auxiliary Genrator/ Exciter Generator Type Ag310 1 Of Bg Alco Diesel Electric Locomotives. Make:- Skf, Fag, Nsk, Ari,Cgc. [ Warranty Period: 30 M Onths After The Date Of Delivery ] ]