Double-row diameter spherical slewing support

Double Volleyball rotary support has three seat rings, steel balls and isolation blocks can be discharged directly into the upper and lower Raceway, according to the force condition, arranged up and down two rows of different diameter steel balls. This open assembly is very convenient, the bearing angle of the upper and lower Arc Raceway is all three, can withstand a large axial force and tipping torque. When the radial force is greater than 0.1 times times the axial force, the raceway must be specially designed. The axial and radial dimensions of the double-row diameter spherical rotary support are relatively large and the structure is fastened. It is especially suitable for tower cranes, crane and other loading and unloading machinery which require medium and above diameter.