BLDC out runner Motor which can be mounted on both sides (top and bottom of the bell)

I’m not too sure where exactly to post this, so bear with me…

I’m searching for a brushless out runner motor that looks something like this:

Sorry for the drawing quality, best I could do :smiley:

Does anyone know their technical name or where I can find something similar? Thanks in advance!

If the motor is opened on both sides how can the bell be fastened to the motor shaft? I mean how can the bell stay in position?

An ebike hub motor can be mounted on both sides, because the axle protudes out of both sides.

The axle protrudes Is one thing, having mounting holes on both sides is another thing.

That was just an example of a motor that can be fixed on both sides.