tapered roller bearing Pillow Block A pillow block is a structure that supports a rotating shaft and houses bearings to facilitate smooth and efficient movement. This component is designed to provide stability and alignment for the shaft, minimizing wear and tear over time. Pillow blocks are used in various applications, including conveyor systems, heavy machinery, and agricultural equipment. They are essential for ensuring the longevity and efficiency of mechanical systems. When selecting a pillow block, consider factors such as load capacity, material, and compatibility with your equipment.