Drive clutch failure

[CACCIATORE]

Hello,
A couple of days ago I had a catastrophic failure in my 2007 Argo avenger EFI driver clutch. As I was driving on snow with tracks the fixed flange fell a part with a great big bang. Amazing enough I managed to crawl for 4 miles until the belt gave up.I am wondering if any of your experts has seen similar failures and if they have a suggestion in order to avoid such problem in the future . Before the failure I did not notice any difference in the performance of the machine The driver part is 127-157 Attached are some pics of the broken clutch
Thank you in advance for any suggestion

[ARGOJIM]

Funny you ask, member racerone3 had that very issue in Ashtabula last year. No explanation from me except his was a Salisbury 780 style clutch.

[CACCIATORE]

Thanks Jim, knowing that I am not the only one helps a little (misery likes company) i sure would feel better knowing the cause of the problem as I was lucky this time but if it happens again in a remote area it would not be fun. it appears that the centre part of the break started some time ago as it is definitely darker, then I assumed the stress at high rpm caused the complete failure. I wonder if a worn out belt could have caused the break. I did checked the belt not long ago and it was still in good shape. May be we are just dealing with metal fatigue (250 hrs on the machine)

[racerone3]

adding to what Jim said, mine was at way higher than the rated rpm and typically is. it was the original clutch from an early to mid 80's machine. I replaced it with a new 780 and am not overly worried about it happening again. I was lucky that mine happened at the end of a weekend, at the end of a ride 300 yards from my trailer. also, mine failed on the non-fixed side of the clutch