"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 Shape Round, Dimensions L x W x H in. 6.89 x 3.94 x 2.02, Static Load Capacity lbs. 5,087, Block Size in. 1 1/2, Mount Type 2-bolt, Dynamic Load Capacity lbs. 3,571, Bolt Hole Size in. 5/8."