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. pesd-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 ) %u2018gear wheel end bearing%u2019 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- 809115.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 conforming to rdso specn. no.-mp.0.2402.17 ( rev.-1 ) of may-2012 with corrigendum dated:-14 / 09 / 2012 for 1400 hp demu / dpc [ warranty period: 30 months after the date of delivery ] => limited