How do you fit a bearing?

To fit a bearing, first ensure that the housing and shaft are clean and free of debris. Heat the bearing in an oven or use a bearing heater to expand it slightly, then carefully slide it onto the shaft or into the housing. Use a press or a suitable tool to ensure it is seated properly without applying pressure to the rolling elements. Finally, allow the bearing to cool to room temperature, which will help it contract and fit securely in place.