The F-212066 features a ringless design that uses the journal as the raceway, resulting in a compact structure that saves installation space and is compatible with customized assembly structures for hydraulic pumps. Model F-212066 Brand ZH Material Chrome Steel precision P0 P6 P5 P4 Product Description Widely used in the main hydraulic pumps of engineering machinery, excavators, concrete pump trucks, mining equipment, and heavy mobile machinery, it serves as the internal