Oh I missed that, for sure there is something out of center on the hubs, with the hub mounted, spin it with just one bearing on the axle and see if you can spot any wobble on the bearing that is not on the axle
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just for a joke
mic the OD of the MBS truck axles and then the hypertrucks
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Iāve got a pulley bearing stuck on my kahuas. Precision is definitely a two edged sword.
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yupā¦ even a slight ākinkā in the axle will send the bliss of precision into the agony of the stuck bearingā¦
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puzzling them together I have something thatās working. with only one hub giving trouble but itās workable.
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I luv that you used a spreadsheet for your science
Iād have used goats blood marks on the garage floor
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I still cut notches in my upper arm for tracking things.
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Iām not so committed to the ācuttingā thing
I lack commitmentā¦
but you should see the semi-permanent sharpie marks on my hands, at the end of a race
They were a very tight fit. Very.
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| hypertrucks | 11.82mm |
| MBS matrix IIs | 11.75mm Ā± 0.01 |
soā¦ yeah very small amount of precision is fān me here. 
so much time wasted.
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ifān ya wanna we can chuck them up and gently un-precision them with some fine grit wet 'n dryā¦ a couple of thou should do the trick
so, my thoughts are the @ZachTetra offered the bestest solution!
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A bearing have to be seating a bit off
Bet thing will be to push bearing out and insert it again, will need an arbor press for this.
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thanks.
thatās the main hypothesis we had. though i lucked out puzzling things together. which suggests maybe itās something else.
Out of curiosity How would you press it out? the outer race isnāt accessible on that side. do you just push on the inner race and let the bearings take the load to the outer race? got any video of this being done? does that destroy the bearing?
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Have you tried this hub on another axle ?
To get the bearing out push the inner race by using a wrench socket or spacer.
Iāll send you a couple of bearings to use as replacement, let me have your order number.
The using the arbor press is pretty straightforward
See here
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those numbers sound very wrongā¦?
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FatBoy 320 axles are 11.94mm 
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Indeed , Hypertrucks should be between 11.97 to 11.98 mm
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Fair. Iām using $20 digital Calipers. never did any kind of calibration though. I thought I zeroed them properly I can try again. concerned theyād be that far off. they state they are Ā±0.02 accuracy.
the relative diff should be the same though.
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right. after mixing and matching the front and rear hubs I ended up with 3 hub sets that fit pretty good. and one that was manageable. ie it fit and removed with a bit of persuasion. the good ones fit on all four axels. the tough one is tough on all four axels.
The interesting bit is that certain combos worked. (green) others didnāt. and I canāt pick out that one or two bearings are seated poorly from that data.
butā¦ I guess Iām good now.
so donāt want to push out any bearing via the inner race and possibly destroy it.
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