... 4 large size, reasonable price Four-Point Contact Ball Slewing BearingSlewing Bearing Turntabal Bearingwidely used for excavator ... light machinery, environmental protection machinery, engineering vehicles, solar energy, wild power, etc.Model size: VLA20304-984mm VLI20325- ... roller bearing,deep groove ball bearing,thrust ball bearing,spherical plain bearing,angular contact ball bearing,thrust roller ...