supply of cylindrical roller bearing of skf designation nu 311 ecjcylindrical roller bearing of skf designation nu 311 ecj,cylindrical roller bearing of skf designation nu 311 ecj of dimension 55 mm bore x 120mm osd x 29mm width, pressed steel cage of rdso approved makes in original sealed carto ons from oem or their authorised dealers only acceptable..following makes f o r u s e d i n 4.5 kw brushless alternator as per bill of materials in rdso specification no.rdso/pe/spec/tl/0054- 2003 rev.0 with amendment no.1 & 2.1) nsk/japan. 2. skf/germany/austria. 3) fag/germany./india [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]