Cosmo LIMAX HS No.2 employs lithium compound soap to serve as a thickening agent and a synthetic base oil which offers exceptional low friction along with a heat-resistant properties. In contemporary locomotives, particularly in high-speed Shinkansen bullet trains, induction motors are utilized for VVVF inverter control to achieve increased speed and resolution cycle extension. Consequently, addressing the challenges associated with ultra-high-speed rotation and ensuring durability becomes crucial. Cosmo LIMAX HS No.2 proves to be an optimal choice under these demanding conditions.