tender for re-casting and machining of g.m bearing and g.m hollow bush on conversion basis , casting with machining of g.m bearing top half with m.s plate as per drg no. p-100/87 (app. wt.175 kg each) for top roller , casting with machining of g.m bearing linner top half for mill’s transmission pinion shaft (approx wt-15 kg each) , casting with machining of g.m bearing linner bottom half for mill’s transmission pinion shaft (approx wt-25 kg each) material composition for g.m bearing should be 88:10:2, copper :tin: zinc, casting should be free from blow hole and hydraulic testing at 150 psi and material test certificate is required. , casting of g.m hollow bush is:- size i.d od length qty 50.8 mm 127 m12”05 , 50.8 mm 152.4 m 12”05 , 30 mm 60 mm12”15 , 25.4 mm63.5 mm 12”05 , 63.5 mm89 mm12”10 , 82.5 mm 114.5 m12” 10 , 101.6 mm 139.7m 12” 08 , 139.7 m165.1m 12” 06 material composition of g.m bush should be 88:10:2, copper : tin : zinc, casting. , casting of g.m round rod: 25 mm x 6 m long , casting of g.m round rod: 35mm x 12m long , casting of g.m round rod: 40mm x 12m long , casting of g.m round rod: 45mm x 12m long , casting of g.m round rod: 50mm x 12m long , casting of g.m square 100 mm x 100 mm x 100 mm note: all the material for re-casting will be provided by mill from oldg.m.scrap and 5% burning loss are acceptable for g.m re-casting work.