The Shaft (OEM Part No. 3222320918) is a mechanical spare part compatible with Epiroc drilling equipment, including PowerRoc-D55, ROC-L6, and ROC PRT50 models. Manufactured from alloy steel, it functions as a transmission and rotation component in the power transmission system. The shaft supports smooth power transmission, improves mechanical efficiency, and maintains reliable drilling performance. Designed for demanding mining environments, this replacement mechanical component provides excellent strength, durability, and long service life.