... journal peripheral speed 1m / s below the maximum operating temperature of 75 °C, 3, selection of calcium-based grease;Load 1-6 ... peripheral speed 0.5m / s below the maximum operating temperature of 75 °C, 3, selection of calcium-based grease;Load <6 ... bearing their own materials, lubricants and lubrication directly related to the selection bearing material of these factors should be considered in order ...