When pouring a bearing liner, which tool is used?

When pouring a bearing liner, the appropriate tool to use is a mandrel. A mandrel is specifically designed to create the internal dimensions of the bearing liner, allowing for a proper fit within the housing. It provides the necessary support during the curing or setting process, ensuring that the liner maintains its shape and dimension as it hardens.

Using a mandrel is crucial because it helps achieve uniform thickness and an accurate internal diameter, which is essential for optimal bearing function. Proper alignment and fit are critical factors that impact the performance and longevity of the bearing. In contrast, while molds can be useful for shaping materials, they do not provide the same level of precision for the interior dimensions that a mandrel does. Other tools like funnels and spouts may assist in pouring, but they do not play a role in shaping or maintaining the integrity of the bearing liner itself.