oil seal: 1.1M8747,7T0158,9W6666,9W7211,9W6668,6T8440 2.ES110,ES250, ... .size:50-1,000mm 4.Gcr15 oil seal: Oil seal used in construction machinery and mining machinery , the outer diameter is from 50mm-1 ... is more than 3,000HRS. Our oil seal is applicable to various engineering machinery and mining machinery.Various loaders and land levelers, cranes ...