Specification :

The double-row ball slewing bearing/ ring has three seat-rings. Two rows of steel balls with different diameters are fitted according to the force bom.
Such open mode fitting features extraordinary convenience. As the axle and the dimension of the double row ball slewing bearing/ ring are rather large, the
bearing construction is sturdy; hence double row ball slewing bearing is particularly suitable for tower cranes which require working radius over medium range, mobile cranes and loading and unloading machines.