Characters:

The double-row different diameter ball slewing bearing has three seat-rings. steel balls and the spacers can directly roll to the upper and the nether orbits. the two row steel balls of different diameter are assembled according to the different force.  The kind of open-pattern-assembly is very convenience.the load-angles of both upper and nether circular orbits are 90 which enable it to undertake very large Axial Force and Tipping at the same time.

Mainly applied area:

This kind of slewing bearing is especially suitable for Tower Cranes of over-medium diameter, Truck Cranes, Loading and Unloading Machines, and so on.