... calcium-based grease No. 2;Load> 6.5MPa, journal peripheral speed 0.5m / s below the maximum operating temperature of 75 °C ... , selected No. 2 lithium grease;Load> 6.5MPa, journal peripheral speed 0.5m / s below the maximum operating temperature of 110 °C ... , oil groove seams open.5, to make the oil ring to the oil sufficiently reliable.6, filling holes not blocked7, do not form ...