bearing vs manner

bearing and manner both are nouns.

Word	Noun	Adjective	Verb	Adverb
bearing	Yes	Yes	No	No
manner	Yes	No	No	No

As nouns, manner is a hypernym of bearing; that is, manner is a word with a broader meaning than bearing:

Other hypernyms of bearing include personal manner.

bearing (noun)	manner (noun)
a rotating support placed between moving parts to allow them to move easily	a way of acting or behaving
heraldry consisting of a design or image depicted on a shield	how something is done or how it happens
dignified manner or conduct	a kind
characteristic way of bearing one's body
the direction or path along which something moves or along which it lies
relevant relation or interconnection

bearing (adjective)	manner (adjective)
(of a structural member) withstanding a weight or strain