Bearing Exploded, Wheel flew off! Video

Also for 608 bearing doubters here is a study I made using 608 NSK bearings. They have proven to be very capable even in this most extreme use case as I have documented. To this day this custom wheel set-up I personally designed and had CNC’d for my 4x4 Plutonium is one of my favourite boards to ride thanks to the wide wheels and ditching those terrible stock cheese cutters.

That all said, yes I think its better to go with the mountainboard bearings for obvious reasons, but it’s not always possible and sometimes prohibitively expensive to change the board over.

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Axial load on bearing is measured with a load centered on the axle which is not the case when the diameter of the wheel increase…
It causes alternative effort on the bearings and the bearing cages specially if the spacer is not perfectly fitted.
At the begining of the powerkite era (high axial loads + high milage), we discovered quicky that the 6900 bearing (10*22) were unable to resist. 28 mm OD bearings are much stronger.

I’s also important to increase the distance between bearings (40mm for a 8" wheel) to reduce the loads on the bearing due to the off-centered load.

During the esk8 era, wheels diameter have increased and it might be time to change the bearing design…

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Very scary post.
Glad you are okay :+1:

Are you using NSK abec 1 like @Skyart recommended?

I used the standard NSK’s provided by Bioboards and they have proven solid despite everyone telling me otherwise…imagine… @mackann can probably tell us what the ABEC rating is on his stock bearings.

What Gen plutonium do you have? Does it have 3Ds gear drives?

Gen 1 3d gears 4x4

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no need to imagine. This thread started off with a video of a 608 bearing catastrophically failing.

If you are restricted to using 608 bearings, might as well make it as safe as possible. Maybe you are lucky and you’re on the ABEC 1 NSK already.

Id say this thread speaks more to we need to do regular bearing checks and make sure axels are properly stacked much more than spending 8$ for a single skate bearing.

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I’d like to see 6001 (12x28) and 16100 (10x28) become standard in esk8 for 150mm or larger pneumatics.

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In that case likely the bearings that exploded in the RS+ and your board are from the same source. And this means that the ones is RS+ could have been a bad batch or something else happened here. There are many more boards out these with these same bearings and they are performing well.

They pretty much already are besides a few outliers

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3d servisas has some nice dual angular contact bearings on the finality . They are also protected from the elements

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Right. The transition to bigger bearings is happening now.

Whats that? A TSG saved my life discount…Do they really and how to you go about applying for that,nothing came in my box from TSG saying about this.Could you give me a bit more info or should i check they’re website?..which i will now after posting this

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Found it…TSG saved my life program - How to take part? - TSG

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Nice to know as i wouldn’t have known if not for reading your post and these pro pass helmets aint cheap and if i crash one one day and its all scraped and bashed you better get a new one because you wont really know if the helmets now compromised.

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Just reading the small print and this offer only applies to countries TSG ships directly to (Europe &the U.S) this now excludes the U.K because of F♤cking Brexit :triumph:

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