Aar Approved Upgraded Taper Roller Catridge Bearing (Ctrb) Class K (6.5 Inch X 9 Inch) Comp Lete For Use On Freight Stock Boxns Wagon With Components And Narrow Jaw Adapter As Per Drg. No.Rbsd- 7077 With Latest Amendment & Specification No.Ab/Rb 392002 Rev-3 Latest Amendment No.3. Make:- Nbc Or Skf Indigenous. Skf Designation: Bcwd13012/S4Cus + Rd-Bt2-8606-15 +Bcwd15020/S3Cus + Bt2-8 606-02/V03 +Bt2 - 7106 Or Similar. [ Warranty Period: 30 Months After The Date Of Delivery ] ]