original question :
Are there any bearings like this for 'one and an eighth' inch steer tubes?
I would get away from just the bicycle industry sources and go to
an actual industrial bearing supplier and look thru their catalogs ..
those we have been going back and forth about ,(other than CK) the one above included ,are 1"
This is for a cargo bike I am designing.
the machine shop/frame builder you will contract to actually build the thing
can likely cope with non standard parts.. ..