luoyang Bearings Manufacturers xi gong industry FRB Bearings Slewing Ring bearing has been developed as a new machine part in recent 30 years. It is first used in excavator and crane, and then applied to other machines. Slewing bearing is almost the same as oversize ball and roller bearing. Figure 1-1 shows double-row ball Slewing bearing's structure. Figure 1-2 shows how Slewing bearing is used in Caterpillar Crane. It connects the upper and lower parts of the machine, bearing the weight and working load of the upper part, and makes the upper slew relatively. luoyang HEN Bearings Manufacturers FRB Bearings co.ltd www.frb-bearings.com slewing bearings turntable bearings bearings slewing bearings turntable bearings bearings Business Reviews FRB Bearings co.ltd Testimonials