Today‘s machine builder with a linear motion application is often not focused on finding the fastest, cheapest or highest load solution. What’s needed is the optimal balance of installed cost versus performance. Finding the right configuration of pillow block bearings and shafting can help.Round rail pillow block bearings offer advantages over square rail guides such as: self-alignment and greater tolerance of reduced parallelism. Pillow block bearings can be installed with either continuous or end supports. They handle moment loads well; offer low drag and excellent smoothness. Pillow block bearings are, without doubt, easier and less expensive to install than square rail bearings without compromise to important performance requirements.