The identification of rolling bearing grease for railway wagons by column inspection

    Railway wagon without axle box double row tapered roller rolling bearing is an important part of the railway vehicle, the vehicle in use, due to the speed, heavy load, poor conditions, alternating stress, so that some parts of the rolling bearing will occur wear, slack, deformation, corrosion cracks, fracture and other phenomena.
    Railway truck without axle box double row tapered roller rolling bearing grease, normal for light yellow, but mixed with foreign matter or grease deterioration, will make grease deterioration, and even use in the overflow, discoloration, therefore, the inspector can identify the overflow, discoloration grease to determine the rolling bearing lubrication state: ◆ mixed sand: the appearance of the inspection of the outer, discoloration of grease to determine the rolling bearing lubrication state: ◆ mixed sand: the appearance of the inspection of the outer, discoloration of grease, discoloration of grease, discoloration of grease:
    ◆Mixed sand: check the appearance of overflowing and discolored grease, if the bearing temperature is found to be high and there are sand particles in the outer ring of the bearing with the seal cover, the hand twist grease has granular feeling that is the bearing internal mixed sand.
    ◆Mixed water: appearance check spillage, discoloration grease, if the bearing temperature is found to be high, grease emulsification thinning, milky white or brownish red that is the bearing internal mixed water.
    ◆Mixed metal powder: Appearance check the overflow, discoloration grease, if found that the bearing temperature is high, grease is dark gray, hand twist grease has a granular feeling that is the bearing internal mixed metal powder.