An SP-25 bearing typically refers to an omni-directional heavy-duty ball transfer unit used for conveyor systems, work tables, and material handling. It features a large main steel ball supported by smaller bearings, enabling smooth 360° rotation and manual load transfer. Model SP-25 Brand ZH Material Chrome Steel precision P0 P6 P5 P4 Product Description The term "SP-25 Bearing" typically refers to a ball transfer unit used in industrial conveyor systems, though it can