Slewing Bearing, Cross Roller Bearing, Thin Section Bearing manufacturer / supplier in China, offering External Gear Ship Crane Slewing Ring Roller Bearing Rks. 161.16.1644 Manufacturers, Rks. 161.14.0544 Lifting Cross Roller Swing Bearing Slew Bearing 640.3*474*56mm, Rks. 161.14.1094 Cross Roller Bearing Ball and Roller Slew Rings Made in China 1198.1*1024*56mm and so on.