Motor Gear failure?

[ScrumdyBum]

What is expected longevity of X and Y motors and gearboxes/chains?

I’ve experienced one motor failure so far in two years so they do fail, but it seems like hundreds of hours of runtime is reasonable to expect. The failure mode seems to always be the same gear in the gearbox and I’ve contacted the manufacturer about using different metallurgy for that gear and they say they are working on it. They sent me a bag of the gear which wears out so if anyone wants one I’ve got some