The ball mill bearing housing is a core heavy-duty support structural part of the ball mill main unit and an exclusive matched component for mineral processing ball mills. Classified into feed end, discharge end and spherical bearing bush exclusive types, it is fixedly installed on the ball mill foundation/frame, and forms a sliding support combination with the internal spherical bearing bush and bearing bush, serving as the core load-bearing base for bearing the overall heavy load of the hollow shaft and cylinder. Working in coordination with the hollow shaft, spherical bearing bush and end cover, it bears the full weight and rotational impact load of the ball mill cylinder, grinding media and ore, absorbs vibrations during the grinding process, and ensures the rotational coaxiality of the hollow shaft and cylinder, adapting to the 24-hour continuous wet heavy-duty grinding working conditions in mines. As the basic load-bearing component of the ball mill's "support system", its structural strength, processing precision and installation adaptability directly determine the operational stability of the entire unit and the service life of spherical bearing bushes/bearing bushes. It is an indispensable heavy-duty basic support component for the main unit of mineral processing ball mills, and is widely adapted to all specifications of grate-type and overflow-type mineral processing ball mills.