procurement of dynamic impact pad and cushioned roller ( impact idlers ) as per nit , procurement of dynamic impact pad and cushioned roller ( impact idlers ) , dynamic impact pad for 1600 mm conveyors , 75 mm pad having suitable dimension for 1600 mm conveyor , length: 1300 mm long along with fastener and ms support structures . the impact pad should have layer of suitable thickness of polymer and rubber . the bottom part should be provided with aluminium reinforcement moulded with rubber for fastening pad with structure . dynamic impact pad with cradle frame . 01 set consisting of 14 nos . pads m/c 22812990013 , cushioned roller ( impact idlers ) for 1200 mm width belt conveyors , heavy duty roller bearing should be zz , type: covering size of bearing: 6205-zz , cushioned length above the roller= 500 mm consisting of 12 nos . segments ( rings ) , shore hardness in degrees a-70 m/c 93059009043 , cushioned roller ( impact idlers ) for 1600 mm width belt conveyors , heavy duty roller bearing should be zz , type: cover size of bearing: 6207-zz , cushioned length above the roller= 500 mm consisting of 16 nos . segments ( rings ) , shore hardness in degrees a-70 m/c