Broken belt drive

KH2110

Active VIP Member
Joined
Sep 8, 2008
Messages
6,946
Reaction score
57
Location
Idaho
is this going to be an issue going forward?
 

Attachments

  • polaris belt 2.jpg
    polaris belt 2.jpg
    60.4 KB · Views: 1,241
  • polaris belt.jpg
    polaris belt.jpg
    18.3 KB · Views: 1,231

KH2110

Active VIP Member
Joined
Sep 8, 2008
Messages
6,946
Reaction score
57
Location
Idaho
not my sled........just wondering if it will be necessary to carry spare cog belts as well as drive belts?
 

KH2110

Active VIP Member
Joined
Sep 8, 2008
Messages
6,946
Reaction score
57
Location
Idaho
i do find it kind of funny.......I remember getting flamed last year about mentioning the fact that if the belt were to break......and now we have proof that it isn't indestructible as some led people to believe.....you have no way to stop!

great design putting the brake rotor on the jack shaft.......bwahahahahahah!!!!!!
 

KH2110

Active VIP Member
Joined
Sep 8, 2008
Messages
6,946
Reaction score
57
Location
Idaho
I'm actually wondering now how long till the first law suit is filed by someone unable to stop due to a broken belt and causing a crash........PEOPLE......SOMEONE IS GOING TO DIE! or at least get severely maimed
 

moyiesledhead

Active VIP Member
Joined
Oct 12, 2008
Messages
5,454
Reaction score
10,881
Location
Moyie B.C.
That really surprises me. We run that type of belt drive system on all kinds of big industrial equipment and I've yet to see a failure like that.
 

KH2110

Active VIP Member
Joined
Sep 8, 2008
Messages
6,946
Reaction score
57
Location
Idaho
so your industrial equipment has a 50-60 pound track spinning at 60-70 mph and then in a split second, by grabbing a fist full of brake lever is required to stop instantly? something is going to give and I believe those pictures^^^^^^^show the weak link


Polaris even admits that the belt is designed as the weak link.......spare cog belt it is. It's nice to be proven right.
 
Last edited:

d mills

Active VIP Member
Joined
Nov 10, 2009
Messages
3,275
Reaction score
4,982
Location
camrose
I'm actually wondering now how long till the first law suit is filed by someone unable to stop due to a broken belt and causing a crash........PEOPLE......SOMEONE IS GOING TO DIE! or at least get severely maimed

Is an xp the only sled you've ever owned? Never broken a chain before? See if you can figure it out from there.
 

Wilk INStheWEST

Active VIP Member
Joined
Dec 18, 2011
Messages
2,299
Reaction score
3,796
Location
Calgary, Alberta
i do find it kind of funny.......I remember getting flamed last year about mentioning the fact that if the belt were to break......and now we have proof that it isn't indestructible as some led people to believe.....you have no way to stop!

great design putting the brake rotor on the jack shaft.......bwahahahahahah!!!!!!

How do you plan on stopping when you your chain breaks?! I'm sorry but it's the same problem. Chains break and belts break. Motorcycles use the same system, and people have been putting on after-market belt drives for a while. This picture shows that only the teeth have come off, and even on those broken sections there is still some traction left between the belt and the cog. Polaris has stated that even if all of the teeth were to be stripped there is enough tension on the system that it will still function properly. So it comes down to the belt actually snapping, which is just as likely as a chain snapping.
 

KH2110

Active VIP Member
Joined
Sep 8, 2008
Messages
6,946
Reaction score
57
Location
Idaho
Nah, everythig we spin is weighed in tons.

my point was that it probably doesn't see the abrupt changes required by a sled drive system......maybe, but I doubt it

Is an xp the only sled you've ever owned? Never broken a chain before? See if you can figure it out from there.

actually no......only one I haven't owned is AC. Yes, I have had a chain snap. whats your point? chain on my XP snaps and I can stop because the brake rotor is on the drive shaft...........maybe you missed the point that the brake rotor on the 2013 belt driven poo's is on the jack shaft........Now lets see if you can figure it out from there
 

KH2110

Active VIP Member
Joined
Sep 8, 2008
Messages
6,946
Reaction score
57
Location
Idaho
How do you plan on stopping when you your chain breaks?! I'm sorry but it's the same problem. Chains break and belts break. Motorcycles use the same system, and people have been putting on after-market belt drives for a while. This picture shows that only the teeth have come off, and even on those broken sections there is still some traction left between the belt and the cog. Polaris has stated that even if all of the teeth were to be stripped there is enough tension on the system that it will still function properly. So it comes down to the belt actually snapping, which is just as likely as a chain snapping.

see above post......do you not understand the difference of where they have put the brake rotor?
 

Wilk INStheWEST

Active VIP Member
Joined
Dec 18, 2011
Messages
2,299
Reaction score
3,796
Location
Calgary, Alberta
see above post......do you not understand the difference of where they have put the brake rotor?

I do completely understand your post. Guess where the brake is on Polaris' 2012 chain case...the jack shaft. As I said in my post, it's the same system.
 

maxwell

Active VIP Member
Joined
Apr 25, 2007
Messages
20,078
Reaction score
43,156
Location
Sherwood Park, Alberta, Canada
Wait you guys have no breaks when your belt goes? Oh my. I'm surprised that's even legal. Would never get away wih that on a motor vehicle. Oh I blew a driveshaft no breaks look out!!!!!!!!!!
 

d mills

Active VIP Member
Joined
Nov 10, 2009
Messages
3,275
Reaction score
4,982
Location
camrose
my point was that it probably doesn't see the abrupt changes required by a sled drive system......maybe, but I doubt it



actually no......only one I haven't owned is AC. Yes, I have had a chain snap. whats your point? chain on my XP snaps and I can stop because the brake rotor is on the drive shaft...........maybe you missed the point that the brake rotor on the 2013 belt driven poo's is on the jack shaft........Now lets see if you can figure it out from there

Yeah I get it. Your quite clever. Why do you think I brought up the xp in my original post. You should probably start a thread warning snowmobile owners who don't have a xp that they are going to die. That's approx 50 years worth of snowmobiles. That's a big task. But I'm sure your up to it. If the belt drive doesn't hold up that sucks. Don't be such a alarmist dude.
 

+SLEDWRECKS+

Active VIP Member
Joined
Sep 27, 2012
Messages
518
Reaction score
1,137
Location
Sylvan Lake
see above post......do you not understand the difference of where they have put the brake rotor?

The brake rotor has been on Polaris' jack shafts for well over a decade !
Were did you come across this picture of the damaged belt from ?
 
Top Bottom