supply of aar approved taper roller cartridge bearings.aar approved taper roller cartridge bearings.,aar approved taper roller cartridge bearings class k (6.5 x 09) complete for use on freigh t stock boxns wagon with adapter as per rdsos drg. wd-15020-s-02 with latest amendment as per drg no rdsos drg wd15020-s-02 with latest amendment. specn: spec no ab/rb-39-2002 rev 3 with 3 amend ments: last amendment no 3 issued on oct 2016 or latest. aar approved ctrb class k 6 1/2 x 9 to ne i drg no rbsd-7077 along with narrow jaw adaptor and its allied components (backing ring, end cap & en d cap screw). accepted offer make/ brand-nbc/timken [ warranty period: 30 months after the date of d elivery ] ]