The service life of train wheels depends on many factors, such as material quality, running speed, load, usage environment, etc. Generally speaking, train wheels can be used for 3-5 years under normal use, or need to be replaced when the mileage reaches 60,000-80,000 kilometers. This is because long-term wear leads to reduced wheel performance, posing safety risks.

If the train wheels are cracked, excessively worn or severely aged, they need to be replaced in advance. In addition, in order to ensure the safety and stability of train operations, railway departments usually conduct regular inspections and maintenance of train wheels. If the wheels are found to be severely worn or have other problems, they will be replaced in time.

Train wheels are one of the most important parts of train operation, and their condition directly affects the safety and efficiency of train operation. Therefore, railways need to regularly inspect and maintain train wheels to ensure they are in good condition.

Regular inspection and maintenance of train wheels can identify potential problems and faults, handle and repair them in a timely manner, prevent faults from expanding or worsening, and ensure safe and efficient operation of trains.

Common train wheel inspection and maintenance include visual inspection, dimensional measurement, wheel set cleaning, wheel set replacement, etc. Appearance inspection can detect cracks, wear and deformation on the wheel surface; dimensional measurement can detect the diameter and degree of wear of the wheel; wheel set cleaning can remove dirt and impurities on the wheel surface; wheel set replacement means replacing severely worn wheels with New wheels.

Generally speaking, for ordinary train wheels, the recommended inspection and maintenance intervals are as follows:

Appearance inspection: Once a day, mainly check whether there are cracks, wear, deformation and other problems on the wheel surface.

Dimensional measurement: Once every three months, check the diameter and wear of the wheels to determine whether they need to be replaced.

Wheel set cleaning: Carry out according to actual conditions, usually at least once a month, to remove dirt and impurities on the wheel surface.

Wheel set replacement: Determined according to the degree of wear and usage. It is generally recommended to replace the wheels in time when the wheels are severely worn.

For high-speed trains or special-purpose trains, the inspection and maintenance cycles of their wheels may be more stringent and frequent to ensure their operational safety and efficiency.

In short, the service life of train wheels depends on many factors, including material quality, operating conditions, maintenance and other aspects. In order to ensure the safety and stability of train operation, train wheels need to be inspected and maintained regularly.