"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, Bolt Hole Size in. 6/13, Block Size in. 3/4, Mount Type 2-bolt, Dimensions L x W x H in. 4.45 x 2.36 x 1.3, Static Load Capacity lbs. 2,213, Dynamic Load Capacity lbs. 1,389."