タイトルまたは説明

Single-row ball slewing bearing with external gear/internal gear/ungear; Double-row ball slewing bearing with external gear/internal gear/ungear; Single-row crossed rollerl slewing bearing with external gear/internal gear/ungear; Three row roller slewing bearing with external gear/internal gear/ungear; Turntable bearing with external gear/internal gear/ungear; Worm drive slewing bearing; Cylindrical roller bearing; Taper roller bearing, Thrust roller/threst ball bearing, self-aligning roller bearing，spherical roller bearings high grade: Po , P2, P5, P6 grade. They are used in Cranes, Excavators, Port construction machinery, Drilling oil machinery, *****