Belt drive fan starting

Large rooftop unit fan starting across the line.

[@LeeHawkinsPhoto]

Turn baby turn!

[@tom13794]

0:04 the camera person jumps

[@burningdust]

Wonder how many RPMs are at the blower shaft? It’s rigged for speed that one those belts should last a week.

[@londonnight937]

How can that belt slip if it has teeth????

[@spinningfans873]

The belt is cogged which increases flexibility and makes it last longer, but the pulleys are still smooth and it still relies on friction just like a non cogged belt

[@londonnight937]

@@spinningfans873 Oh, so the belt is actually a normal friction belt, but the cogs are intentional? never heard of such a thing, it sure is interesting! :D

[@catsbyondrepair]

@@londonnight937 then you have never seen a fucking belt then.

[@robertojuarez959]

What is that supposed to be for😅❓

[@Turbocharge1000]

Motor 1750RPM fan 2190rpm???

[@Turbocharge1000]

depends what the fan is blowing through