2 Royalty-Free Audio Tracks for "Mechanical Friction"

Something went wrong on a mechanical device on top of the building that faces my balcony. I don't know what it is exactly (some fan. . . ) but the noise it produces is pretty theatrical. I just could'nt resist recording it. I belive this could be very useful to some of you looking for mechanical sounds. . . Recorded with a zoom h2n in x/y stereo mode.

Miked at 3-10" distance. Stove overhead fan recorded powering down, followed by subsequent power-up/power-down [mic was moved closer/further from fan, according to fan speed, in order to minimize air movement against diaphragm]. H4 zoom recorder.