supply of pair of roller bearing consisting of one numbers each type of bearing, a) road wheel end bearing as per m/s nei ltd. drg. no.- m-67981/m-67919 & drg. no. pes d-6019 & m/s fag ltd. drg. no.- fag part no. z- 566565. tr1& m/s skf ltd. drg no.- 67981/67919/vu1701 (make-indigenous) & m/s timken ltd. drg no.- 67981/67919 or equivalent of other make b) gear wheel end bearing as per m/s nei ltd. part no.m-67982/m-67919 & drg. no.- pesd-6020 & m/s fag ltd. drg. no.- fag part no. f-8091 15.tr1& m/s skf ltd. drg no.- 67982/67919/vu1701 (make-indigenous) & m/s timken ltd. part no.-67982/m-67919 or equivalent of other make. technical requirements con forming to rdso specn. no.- mp.0.2402.17 (rev.-2) of march-2021 for 1400 hp demu/dpc. [ warranty period: 30 months after the date of delivery ] ]