The BCHA24 is a stainless steel press-fit ball roller (or ball transfer unit) primarily used in light-duty material handling, assembly lines, and industrial conveyor tables. It features a large main ball supported by smaller internal steel balls for multidirectional movement. Model BCHA24 Brand ZH Material Chrome Steel precision P0 P6 P5 P4 Product Description BCHA24 is not a traditional rotary rolling bearing (such as a deep groove ball bearing), but a press-fit stainless