This NorTrac pillow block features solid cast housing and top-quality advanced seals designed to prevent leakage and keep out dirt in your hydraulic application. Bolt Hole Size in. 5/8, Mount Type 2-bolt, Static Load Capacity lbs. 2,415, Dynamic Load Capacity lbs. 1,564, Dimensions L x W x H in. 5.12 x 2.68 x 1.42, Bolt Hole Shape Round, Block Size in. 1.