supply of supply & fitment of helical pinion, part no.ohe-4-1-3/08 or equivalent, with dismantling, commissioning by hydraulic press and testing etc , supply & fitment of helical pinion, part no.ohe-4-1-3/08 or equivalent, with dismantling, com missioning by hydraulic press and testing [ warranty period: 30 months after the date of delivery ] ] , supply & fitment of bearing, part no.ohe-4-1-std/1 or equivalent, flange with driving shaft with oil seal, adts-bg-4 or equivalent to drg no.kgp/dl/w/sk/1343, with dismantling, commissioning by h ydraulic press and testing. [ warranty period: 30 months after the date of delivery ] ]