supply of lt shaft as per drg. no. g/sd-1691 , lt shaft as per drg. no. g/sd-1691 with half geared coupling fitted at both ends. half geared coupling, no. of teeth-38 nos, flange outer dia.-185mm, thickness of flange-18mm. no. of fixing holes-06 n os.(hole dia.-12mm), pitch circle diameter of fixing holes-155mm. material-medium carbon steel as per is:1 875/1992 class-5 and hardness of geared portion in the gear coupling shall be more than 250 bhn with ma terial test certificate issued by nabl/govt. approved agency. qty.-02 set (01 set = 01 shaft + 02 nos.half g eared coupling fitted in shaft). [ warranty period: 30 months after the date of delivery ] ]