supply of bearing of cog wheel and crank , supply of bearing of cog wheel and crank shaft assemblies consists of 4 items of x- class locomotives as given below. item no.(1). bearing lh part finished for rack wheel drive shaft as per drg no goc/x/bg-13-07001 sheet -2, item no - 1 , qty - 02 nos./set item no.(2). bearing rh part finished for rac k wheel drive shaft as per drg no goc/x/bg-13-07001 sheet -2, item no -2 , qty - 02 nos./set item no(3). bearing half part finished for crank shaft as per drg no goc/x/bg-13-09001 alt(1) item no - 1, qty - 04 nos./set item no(4). bearing half part finished for crank shaft as per drg no goc/x/bg-13-09001 alt(1) ite m no -2, qty - 04 nos./set note: 1. item no 1 to 4 consists of one set. 2. for equivalent material specifications refer goc/x/spec- x-032 3. if any casting defec ts are found during the machining of supplied items within the warranty period, those items need to be replaced by the concerned firm within one month. 4. f or material specification, the firm has to submit nabl accredited lab test certificate along with the material supply. [ warranty period: 30 months after the date of delivery ] ]