High quality light duty 5/8" two bolt flange bearing. the bearing has a narrow inner ring with two set screws for attaching to the shaft. housing is ductile iron with square bolt holes and a grease zerk for re-lubing the bearing.; basic dimensions: shaft size: 5/8"; bolt distance: 2.52"; overall length: 3.19"; overall width: 2.20"; overall thickness: 0.99";