Whats wrong with this picture?

CRUZE 418 said

Yes, maybe it's a local thing, but tang is what we would call it here. Was just saying that I had never heard it referred to a a notch.

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Notch in the block or con rod and the matching caps. Tangs on the bearings to locate the bearing in the bore.
I use a fine file to just "deburr" the side opposite the notches to prevent that sharp corner shaving a bit off the back of the bearing. Put the tang in the notch and then push the bearing into place.