tender for supply of hs & ls couplings & their spares for ball tube mills of unit 1 to 6, sstps, suratgarh , supply items , hs couplings type lgf-685 v, nstd make rathi for ball tube mill bbd 4772 along with grid spring, horizontal cover with nut bolts and washer in fb and kw motor side 160mm, reducer side 140mm (coupling between main motor and main reducer) , nut bolts and washer for hs couplings between main motor and main reducer type lgf-685 v , nstd make rathi for ball tube mill bbd 4772 along with grid springs.( one set consist of complete set of fasteners for one complete assembly) , ls flexible geared coupling with fasteners as per drawing for ball tube mill bbd 4772 (lfg-115) nstd , set of fasteners (bolt, nut & washer) for ls flexible geared coupling lfg-115) nstd as per drawing for ball tube mill bbd 4772 ( one set consist of complete set of fasteners for one complete assembly)