This is a Cast Iron Pillow Block with 1″ Bearing (UCP205-16).
Product Specs:Bolt hole to bolt
hole: 4.133″Overall
length: 5.51″
Shaft height: 1.437″
Overall height: 2.736″
Bolt hole: .511″Solid cast iron housingChrome steel bearing with 1″ inside diameter2 set screws located on inner ring of the bearing for locking it on the shaftHousing has a 2 bolt setting for mountingUC205-16 stamped on bearingAlso referenced as UCP205-16Common usage for UCP205-16 Pillow Block Bearing include: Agriculture, Automotive, Pump, Sporting and Consumer Goods, Construction, Manufacturing Equipment, Conveyor and Fan Assemblies, Farm Machinery, HVAC, Feed Mill, Economical housed bearing solution and many other Industrial Equipment Bore.