Hardened or Non Hardened teeth Slewing Ring Bearing For Gantry Crane Swing Beam

QuestionHardened or Non Hardened teeth Slewing Ring Bearing For Gantry Crane Swing Beam 680 kgf radial static load capacity: ? Find what you need faster TFI Bearing Co.,Ltd by Round bore type: entering 1310 kgf radial dynamic load capacity: your Slewing Ring Drive information .

What is bearing cross reference？