bear on vs bear upon

bear on and bear upon both are verbs.

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

As verbs, bear on and bear upon are synonyms defined as:

Other synonyms of bear on include affect, impact, touch, touch on.

bear on (verb)	bear upon (verb)
have an effect upon	have an effect upon
press, drive, or impel (someone) to action or completion of an action
be relevant to
keep or maintain in unaltered condition; cause to remain or last