Did you knock the old bearing out yet?
I have a press, that’s the #1 method
#2 is to take a small block of wood bigger than the bearing, and tap it in flush. Then use a socket that fits just inside the spindle, and recess it 5mm
the small seal goes behind the bearing, flat side toward the knuckle
plastic sleeve slides over the shaft, tapered side towards the radius
Rubber seal slides on the stub shaft, fat side toward the u joint