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Welcome to SUPbearing, It was established and developed on the basis of the Dalian SUPbearing factory from 2000. The company is specialized in designing and manufacturing various kinds of large-size bearings(inch size taper roller bearings; cylindrical roller bearing; spherical roller bearings; thrust ball bearings; deep groove ball bearings and etc.), slewing rings, ceramic bearings, automotive bearings, low noise deep groove ball bearing and ...