maintain vs bear on

maintain and bear on both are verbs.

Word	Noun	Adjective	Verb	Adverb
maintain	No	No	Yes	No
bear on	No	No	Yes	No

As verbs, bear on is a hyponym of maintain; that is, bear on is a word with a more specific, narrower meaning than maintain:

maintain (verb)	bear on (verb)
stick to correctly or closely	have an effect upon
state categorically	press, drive, or impel (someone) to action or completion of an action
state or assert	be relevant to
support against an opponent	keep or maintain in unaltered condition; cause to remain or last
maintain by writing regular records
supply with necessities and support
keep in safety and protect from harm, decay, loss, or destruction
have and exercise
maintain for use and service
cause to continue in a certain state, position, or activity