High quality pressed steel 1-5/16" two bolt flange bearing. The bearing has a narrow inner ring with two set screws for attaching to the shaft. Bearing is pre-filled with grease.  

Diminisions:
Bore: 1-5/16"
Bolt hole to bolt hole: 3.93 in. (100mm)
Overall length: 4.80 in. (122mm)
Bolt hole: .413 in. (10.5mm)