поворотные подшипники

Products type include: 1.single-row ball style, 2.double –row ball style, 3.three-row roller type, 4.cross-roller-type, 5.double row ball, 6.the ball-roller joint type of six series of slewing ring ceremony. Product have passed the national quality inspection that special machinery parts Products have reached the same level of industry-leading and achieved ISO9001: 2000 quality system certification CHARACTERISTIC OF STRUCTURE，PERFORMANCE AND APPLICATION Three-row roller slewing bearing has three seat-rings,which separate the upper,lower and radial races,via which the load of each row of the rollers may be specified.It may bear different loads simultaneously and its load capacity is the largest one among the four models. Thanks to the large size of its axle and radius,it is sturdy and especially suitable for hearvy-duty machines which require large working radius.such as bucket-wheel excavators,wheeled cranes,ship cranes,ladle turret,heavyduty mobile cranes etc.