The F-204781 features a full complement double-row roller design with densely packed rollers, resulting in extremely high radial load capacity, making it suitable for heavy-duty impact applications. Its cageless structure maximizes the number of internal rollers, providing excellent rigidity and making it suitable for medium- and low-speed heavy-duty applications. Model F-204781 Brand ZH Material Chrome Steel precision P0 P6 P5 P4 Product Description - Hydraulic pump spindle,