Yes, there is a spring loaded brass bearing that the end of the shaft nestles into
There's also a coupler that resides between the two sets of four teeth:
So, if I'm hearing you correctly, the brass bearing centers the motor shaft?
Pardon my ignorance, but I was cleaning out my power steering assist motor and noticed that the shaft had a great deal of play to it.
Are there motors where the shaft is supposed to move laterally as it rotates vertically? I've never seen this before.