High quality 5/8" take-up bearing. The bearing has a wide inner ring with two set screws for attaching to the shaft. Housing is cast iron with a grease zerk for re-lubing the bearing.

Diminisions:
Bore: 5/8"
Bolt hole: .748 in. (19mm)
Overall length: 3.7 in. (94mm)
Slot size: .531 in. (13.5mm)
Width from slot to slot: 2.99 in. (76mm)