These are standard, cast iron 2 bolt Flanges
There are several bearings that can be assembled with these housings: ie:
SA201 and SA202 series ( locking collar), SB201 and SB202 series( set screw) singly extended inner ring bearings, flush on the other side.
THESE ARE LIMITED TO 40MM OD BEARINGS
These castings can be use for replacement or with new bearings. Bearings mount on the back side, inserted perpendicular to the housing, into the slot and then turned into the bearing using a pipe, until flush with the housing.
THIS IS THE HOUSING ONLY. NO BEARING IS INCLUDED.