AMI UCF311-32C4HR5 Four-Bolt Flange Mounted Ball Bearing

AMI UCF311-32 is a 2-inch bore, four-bolt flange-mounted ball bearing unit built around the UC311-32 insert inside a cast-iron UCF300-series housing for heavy-duty service. The unit is a non-expansion (fixed) bearing with a set-screw locking flange and a contact seal with a flinger to help keep contaminants out. The bearing insert is made from AISI 52100 steel and is relubricatable for maintenance-friendly service on demanding equipment. Key dimensions and ratings include a bolt-center-to-center distance of 5.5156 inches, an overall length of 7.3125 inches, and a through-bore length of 2.598 inches, with a 2-inch bore on straight shafts. Radial load capacity is 16,100 lbf (dynamic) and 10,100 lbf (static). The unit weighs about 12.56 lb. This AMI four-bolt flange unit is well-suited to conveyors, packaging machinery, material-handling lines, and other industrial assemblies where a robust, serviceable flange-bearing supports reliable rotation and straightforward lubrication.