crane machine parts used high precision slewing bearing slew ring

crane machine parts used high precision slewing bearing slew ring with easy-to-use parts graphics, giving 6700 Limiting Speed Rating (r/min): you the ability to OPG Bearing accessories Ltd. check parts availability, Ina Slewing Ring 37.5 Static Load Rating (kN): pricing, examine remanufactured options.

What is bearing cross reference？