The BCHA11 is a stainless steel press-fit ball roller (transfer unit) primarily manufactured by MISUMI. Designed for upward-facing, omnidirectional movement in conveyor and material handling systems, it uses smaller ball bearings arranged in a circumference to distribute load. Model BCHA11 Brand ZH Material Chrome Steel precision P0 P6 P5 P4 Product Description BCHA11 is not a traditional rotary ball bearing, but a press-fit universal ball transfer unit (Ball Roller) that is