This week we will be looking at why a bronze plain bearing is much more reliable with a hardened shaft than it is with a soft shaft. So, let’s get started. Hardening Heat treatment involves heating the metal to a sufficiently high temperature to dissolve the impurities. Steel is usually heated up between 800°C and
Better results with a harder shaft
![](https://arvis.co.uk/wp-content/uploads/2022/02/Better-results-with-a-harder-shaft-1024x724.jpg)