High quality 1-1/4" square pillow block bearing. Housing is cast iron with a grease zerk for re-lubing the bearing.

Diminisions:
Bore: 1-1/4" Square
Bolt hole to bolt hole: 5.748 in. (146mm)
Overall length: 7.469 in. (190mm)
Shaft height: 2.126 in. (54mm)
Overall height: 4.153 in. (105.5mm)
Bolt hole: .669 in. (17mm)