Advanced Materials & Tribology supplies Stainless Steel made Two Bolt Self-Aligning Pillow Block. Advanced Materials & Tribology offers a wide range of Oil-less self-lubricated Bearings and Plates, Self Lubricating Bushes and Pump Bearings. Advanced Materials & Tribology is an ISO accredited company. The Stainless Steel made Two Bolt Self-Aligning Pillow Block is designed for high temperatures and harsh environments commonly seen in the paper and other process industries. The Pillow Block is available in shaft sizes of ½ to 1 ½ "