The appropriate Rockwell hardness for a ball mill pinion largely depends on the specific application and material it's intended to process. Generally, pinions are manufactured from through-hardened steel to provide the strength and durability needed for heavy-duty applications. For ball mill pinions, a typical Rockwell hardness would range between 50 and 60 HRC (Rockwell Hardness Scale C).
However, it's essential to consult with the manufacturer or a materials engineer to ensure the selected hardness aligns with the operational and environmental conditions of your ball mill.
