how many hours are the new double row bearings good for?

Uncle si · Aug 27, 2014

How long are the double row bearings lasting? Who has worn them out? I will probably update both my kits, but I'd like to know when to swap bearings rather than walk out after one fails.

The original bearings would fail by 80 hours, so I would replace them at 40.

Thanks for the info!

kevinhoglund · Aug 27, 2014

They ran the cheapest bearings in the double housing all winter. That is what I was told by brett @ Timbersled is last Feb when I rode the 2015 Prototypes.:face-icon-small-coo

9Miler · Aug 30, 2014

double row bearing

There were failures the boys at Priest Lake running the prototype 2015 at end of season were seeing them

vmax1200 · Aug 30, 2014

Wow there so many different scenarios for bearing failure ,track tension to tight ,chains to tight,bent side panels causing poor alignment,pressure washing and forcing water into bearing , over greasing and blowing seal, squaring the drivers up with a rock going wide open ,the flexing and side load just kills bearings in general , the double bearing will help ,still think there should be more surface area on the sub frame where side panels bolt up ,2'' inch area washer welded to the sub frame ,it would be clean and doesnt affect cosmetics ,would add to the structural integrity ,and have little to no effect on weight and balance .

9Miler · Aug 31, 2014

Yep all of the above plus a few more

mrsnaglepuss · Sep 2, 2014

Bearings

It will be interesting to see how long they last with the all new MS at 200 plus HP at the crank. They will fail just how and when?

wwillf01 · Sep 2, 2014

mrsnaglepuss said:
It will be interesting to see how long they last with the all new MS at 200 plus HP at the crank. They will fail just how and when?

What has 200 hp?

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mrsnaglepuss · Sep 2, 2014

The 2015 Mountain Slayer, all the details are not out yet. The little that can be let out of the can at this time is that it is a four stroke, ? cylinders, that's all I,m allowed to devulge at this time. The Dyno numbers are absolutely astounding. The turboed thumpers will be destroyed.

wwillf01 · Sep 2, 2014

mrsnaglepuss said:
The 2015 Mountain Slayer, all the details are not out yet. The little that can be let out of the can at this time is that it is a four stroke, ? cylinders, that's all I,m allowed to devulge at this time. The Dyno numbers are absolutely astounding. The turboed thumpers will be destroyed.

Intriguing; )

mnsnowhawk · Sep 2, 2014

mrsnaglepuss said:
It will be interesting to see how long they last with the all new MS at 200 plus HP at the crank. They will fail just how and when?

But how much does it weigh? I've ridden snow hawks since 03 and now a Timbersled. The low weight is the biggest key to great performance. Just wondering. Looking forward to seeing your build.

Blaser · Sep 3, 2014

kevinhoglund said:
They ran the cheapest bearings in the double housing all winter. That is what I was told by brett @ Timbersled is last Feb when I rode the 2015 Prototypes.:face-icon-small-coo

In order to accelerate bearing wear and potential failure, we did go with the least expensive bearings available in our prototype units only. We saw over 2000 miles on some kits last season, and had the double bearings on 15+ units; including our demo bikes that were flogged by most demo riders. Our goal is to have the new double bearings last multiple seasons for the hardest riders, and the life of the kit for normal humans. That's a goal, not a warranty.

We also upgraded the bearings again this year for production, and eliminated the drilled bearing housing in the double setup. With the new stiffer chassis, side panels and 4 bolt rigid housings; we have the best Timbersled kit to date.

One interesting efficiency note- on our 5 test bikes, (all 501 Bergs) we noted that the ST and LT top speeds are now virtually identical. This speaks volumes about the designed efficiency changes for 2015.

summitboy · Sep 3, 2014

Brett, are you saying the new bearings are no longer the cheapys with the little hole drilled in them for grease ? So are the bearings opened (sealess) on one side ? This allows us to grease any bearing we want ?

If so that is smart thinking and good for the consumer. Well done ! If not booh LOL

Blaser · Sep 3, 2014

summitboy said:
Brett, are you saying the new bearings are no longer the cheapys with the little hole drilled in them for grease ? So are the bearings opened (sealess) on one side ? This allows us to grease any bearing we want ?

If so that is smart thinking and good for the consumer. Well done ! If not booh LOL

Yep! We've done away with the drilled bearings in the new double bearing set up. No more hole in the bearing race!

They are open on one side so you can squeeeeeeeze grease in to your hearts content. Personally, I don't think the new setup needs greased more than 1x per 6 or 7 rides, if that much. My opinion is also if you check axle bolt tightness regularly, these bearings should last thousands of miles.

I'd bet you a milkshake the vast majority of our 2015 kits will be 5+ years on snow before they need bearings. I'm excited to see how long they really last.
BB

Uncle si · Sep 3, 2014

9Miler said:
There were failures the boys at Priest Lake running the prototype 2015 at end of season were seeing them

I'd really love to know how many hours they got.

I prefer not to return to the truck on the wrong end of a tow rope.

Blaser · Sep 3, 2014

Uncle si said:
I'd really love to know how many hours they got.

I prefer not to return to the truck on the wrong end of a tow rope.

Over 2000 miles on one of them. Early designs revealed a potential issue with a bearing spacing washer that was crushing and creating play between the bearings. After that was discovered and changed, bearings stayed smooth like butter.

We want this to be a long term solution even more than you do. The great thing about the team here at Timbersled is they aren't satisfied with anything less than their best work, best designs, and the best solutions. Everyone here is that way.
It's definitely a cool company to be a part of.

mrsnaglepuss · Sep 5, 2014

2015 Mountain Slayer net weight

2015 Mountain Slayer the wet weight (fluids in) will be less than 20 pounds more than a Honda crf 450 with the same track kit. With I might add a lower centre of gravity, larger tank, 200hp at crank, over 90 ft. lb. of torque. The bearing design upgrade is an absolute necessity for this build!

n16ht5 · Sep 5, 2014

Pics or it doesnt exist

mountainhorse · Sep 5, 2014

...

.

Hbmtr · Sep 5, 2014

mrsnaglepuss said:
2015 Mountain Slayer the wet weight (fluids in) will be less than 20 pounds more than a Honda crf 450 with the same track kit. With I might add a lower centre of gravity, larger tank, 200hp at crank, over 90 ft. lb. of torque. The bearing design upgrade is an absolute necessity for this build!

I would like to see what makes 200hp and 90 ft.lb at the crank please. The suspense is killin me!

thejean · Sep 6, 2014

Sounds like a two stroke with the HP to TQ ratio.

how many hours are the new double row bearings good for?

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