I listened to the pronunciation of words containing ar with the Oxford Advanced Learner's Dictionary I have on my computer; in particular, I checked the pronunciation of the following words:
I noticed that the pronunciation, for example, of bare is reported as /ber/, but the word seems to be pronounced as /beər/. (I hope it's clear what I mean.)
Is that exact, or am I misunderstanding the pronunciation of those words?
Strangely, the pronunciation in British English of those words is shown as containing the /eə/ sound, but I perceive a single sound (maybe prolonged).