Specification??Style: 2 BoltsMaterial: Cast IronBore Size: 5/8 InchStatic Load Rating: 12.80 kN/ 2878 lbsDynamic Load Rating: 12.80 kN/ 2878 lbsMax RPM: 3800Quantity Per order: 10 Pieces Feature??Self Alignment Feature:If this is our self-alignment feature. These bearing are meant to have some play in them. When you mount them, just use the shaft to rotate te bearing is crooked for example when you lay it on a flat table, it is not flat. Please don’t worry. Thhe bearing into proper position, or if it is not out of alignment by much, the bearing will correct their own alignment once they begin to rotate. Because if the bearings were not aligned properly and spinning at high RPMs then sure disaster would happen. So our self-alignment feature is a way to prevent this from happening. Product Description??The UCFL pillow block mounted bearing series has two bolt holes, and a set screw lock is designed for mounting onto bearing surfaces parallel to the shaft axis, such as conveyor belts. This ready-to-mount unit has solid base cast iron housing, chrome steel bearings, and is designed for efficient operation at a wide range of speeds. This one-piece pillow block housing allows for a stationary outer ring and rotating inner ring. Insert bearing maintains the separation between mo