I had the exact same tumbler, a Midway 1292 that I bought back in 2000. I ran mine for ten years, it died back in April; I felt like I got my money's worth and didn't even give the idea of a replacement motor much thought - I tossed it. I bought a Hornady M-2 from one of the local gunshops - cannot beleive how quiet it is compared to my old 1292. Look on the bright side, now you can get a quiet one!
