Barden 204HDM Super Precision Thrust Ball Bearing

Barden 204HDM Super Precision Thrust Ball Bearing is a compact axial-load bearing with a 20 mm bore, 47 mm outer diameter, and 14 mm width, placing it in Barden’s family of high‑precision thrust bearings. As a super‑precision thrust bearing, it is designed for high‑speed operation in demanding equipment where axial stiffness and tight tolerances are critical, such as precision machine‑tool spindles. The 204H family is commonly used for spindle bearings and other precision instruments, and the DM suffix variant represents a specific configuration within that line, suitable for axial load support in compact packages like vacuum‑pump assemblies and similar equipment. Exact details such as cage type, lubrication method, preload, and compatibility are specified in the official Barden/Schaeffler data for this model.