I have had my Cryorig H7 for close to over 3 years now. Although the fan(original) is still spinning, I was just curious how long these fans last. Whether it be from your own experience or a data sheet about its max life spin cycle.
I believe the H7 fan is the QF 120 Balance, though I could be wrong.
Depends on the bearing quality of construction and local dust conditions as well as what makes up the dust.
After a few years all my case fans are still holding up, except for the rear exhaust which when turned on makes a rattling sound that is solved by the ingenious solution of just hitting it a few times.