procurement of carrying and return idlers for 1200mm conveyor belt at hurl, gorakhpur , carrying idler, return idler of 1200 mm , carng idlr,1200 mm belt,l-465,d1-139.7 carrying idler for 1200 mm belt width, roller dia: 139.7mm, shaft dia- 20 mm, barrel length: 465mm; shell thickness-4.5 mm, pipe mocms erw as per is 9295, shaft mocen8, bearing: 6204; as per drg no: jn2562-017m, ovality - 0.8 mm max , return idlr,1200 mm belt,l-1400,d-139.7 return idler for 1200 mm belt width, roller dia: 139.7mm, shaft dia- 20 mm, length- 1400mm, shell thickness: 4.5mm;pipe moc-ms erw as per is 9295, shaft moc- en8, bearing: 6204, as per drg no: jn2562-024m, ovality - 0.8 mm max