mini swing bearing-Internal gear , tadano crane slewing bearing

Double Row Ball Slewing Bearing（02Series）--Internal Gear
Characteristic of structure, performance and application
Double row ball slewing bearing has three seat ring, the steel ball and the spacing block can be directly arrange into the upper
and lower races, two rows of upper and lower steel balls with different diameter are fitted according to the stress condition.
This kind of open assembly is very convenient, for the upper and lower bear raceway arc angles is 90°,which can bear large axial
forces and tilting moment. When the radial force is greater than 0.1 times the axial force need to be specially designed the
raceway.
Double row different ball slewing bearing’s axial and radial size are relatively large and solid in structure, so it is specially
suitable for the medium diameter tower cranes, truck mounted cranes etc. loading and unloading machinery.