Trailers and trailer parts are widely underestimated. People seem to take this subject very lightly and don't consider how a fully functional and roadworthy trailer can affect your driving. As a driver, you need to take as much care of your trailer as you do to your trucks. If any trailer axles parts need to be fixed or replaced, then do it immediately.
When you do replace any parts on your trailer, ensure that you use quality trailer parts. Why should you use quality trailer axles and what are the benefits? Sure you could replace your trailer's axle with any cheap version on the market. It would save you money in the short run.
A year or so down the line your axle breaks again, while you are driving. This then damages more trailer parts and needs to be replaced as well. That means you need to give out more money for another axle and for the additional parts that got damaged. If you had invested in a quality trailer axle it would have lasted you much longer.
When searching for a trailer axle, find one that is manufactured with the latest technical standards and with precise production tolerances.
Investing in quality trailer parts will save you much time and effort as well as money in the long run. So don't cut corners by choosing the cheapest and weakest trailer axle.