... services Buyer label offered Material : 50Mn , 42CrMo Focus on Customers Tower Crane roller slewing bearing OD :1298MMID :998MMHeight :82MMNet Weight :230KG Material ... 25.710, 111.28.800, 112.28.800, 111.28.900, 112.28.900, 111.28.1000, 112.28.1000, 111.28.1120, 112.28.1120, 111.32 ... .4000, 113.50.4500, 114.50.4500 Printing Machinery and Tower Crane roller slewing bearing (111.28.1120 ) with outer gear