Cassettes to large for the welded bearing holders?
- Thread starter ilove2fix
- Start date
You should be able to drill holes. Just make sure that the extra holes don't compromise the integrity of the bearing hanger
Functional Artist
Well-known member
It looks like the cassette won't be able to sit "flat" against the bearing holder, even if you drill more holes 
Maybe make some adapter plates
Make 'em so, they can sit flat against
...& have bolt holes to attach 'em to the existing bearing holders
Then, also have holes for your "new" bearings too
Maybe even tap the holes in the adapter plate
...so, that the bolts for the bearing holders "thread" right in to the adapter, from one direction & the bolts for the cassettes can "thread" in from the other side
Maybe make some adapter plates
Make 'em so, they can sit flat against
...& have bolt holes to attach 'em to the existing bearing holders
Then, also have holes for your "new" bearings too
Maybe even tap the holes in the adapter plate ...so, that the bolts for the bearing holders "thread" right in to the adapter, from one direction & the bolts for the cassettes can "thread" in from the other side
mckutzy
Well-known member
Off hand those brackets look like they are for pressed flange self aligning bearings not those racing bearing holders...
https://www.amazon.com/Peer-Bearing-FHPFTZ207-20-Non-Relubricable-Eccentric/dp/B00SOMH0D6
https://www.amazon.com/Peer-Bearing-FHPFTZ207-20-Non-Relubricable-Eccentric/dp/B00SOMH0D6
anickode
Active member
This. Those brackets are just for plain Jane go kart bearing flanges and a 1" axle.
Functional Artist
Well-known member
I believe the OP has a Metric (40mm) axle, that he's tryin' to install on this kart
http://www.diygokarts.com/vb/showthread.php?t=43606
That's why I suggested adapter plates
...because it's a "conversion"
…& NOT a "stock" situation
http://www.diygokarts.com/vb/showthread.php?t=43606
That's why I suggested adapter plates
...because it's a "conversion"
…& NOT a "stock" situation
pearl111
Well-known member
Those look like the bearing brackets you can get at BMI KARTS. You weld them on yourself. For 1" or 1-1/2" axles.
thats what im doing now thanks im just worried i dont get the holes exact and the axle isnt 100% straight
---------- Post added at 09:53 PM ---------- Previous post was at 09:49 PM ----------
It looks like the cassette won't be able to sit "flat" against the bearing holder, even if you drill more holes
Maybe make some adapter plates
Make 'em so, they can sit flat against
...& have bolt holes to attach 'em to the existing bearing holders
Then, also have holes for your "new" bearings too
...so, that the bolts for the bearing holders "thread" right in to the adapter, from one direction & the bolts for the cassettes can "thread" in from the other side
where can i get those plates ? man this build isnt going as planned , i was able to mount them on temp and the axle went in smooth ?
Functional Artist
Well-known member
Yours is a custom application
...so, you would have ta make 'em yourself
Why are ya tryin' to use that "odd" size axle?
You can get a "standard" 1" axle for ~$30.00 @ BMI
…& the "proper" bearings (for those bearing brackets) for ~$20.00
Yours is a custom application
...so, you would have ta make 'em yourself
Why are ya tryin' to use that "odd" size axle?
You can get a "standard" 1" axle for ~$30.00 @ BMI
…& the "proper" bearings (for those bearing brackets) for ~$20.00
because i have metric hubs and wheels
if i can bend the the bearing holder to be flush with the cassettes ill be ok ? and if the axle slides easily between the 2 is that good enough?
how does it look guys?
it spins freely but if i really crank down the bolts on the cassttes it gets harder to spin?
upload gif online
it spins freely but if i really crank down the bolts on the cassttes it gets harder to spin?
upload gif online
Brianator
Gettin' er done!
I'd venture a guess that the one bit of the bracket (circled) is rubbing against the inner race of the bearing and why it gets tight so some more trimming is required. You'll also want to make sure you have the tabs as strait and true as possible so when the cassettes are bolted tight that the axle can still slide in the bearings, if not you're putting stress on the bearings that they were never designed to handle and you'll wear them out quicker than they should AND you're robbing yourself of some power.
Attachments
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20200517_225604.jpg
no i made sure it wasn't i grinded that area down so it doesn't rub .. but how tight should those bolts be? if i do medium axle still spins about 3 or 4 rev when i spin it by hand hard. And if i tighten them down more it may spin once but if i loosen them all the way the axle would spin maybe 7-10 revs. Why is that?
Something is still binding there. Loosen them all and tighten again.
Brianator
Gettin' er done!
ok will do
anickode
Active member
And tighten them gradually, working around the circle. Don't just reef one down before moving on to the next.
Also looks like you've got some serious misalignment going on there in the first pic.
Sounds good