74 CB450 front wheel hub stripped

[Lunanzar]

So this is the first thing i've had to make a post for, since any question i've ever had has been answered for my project.

I was replacing the front wheel bearings, and ended up buying the tool to remove the bearing retainer lock (since nothing else worked, i finally found one). When I got the old retainer out, it looked a bit rough. I got it out, replaced the bearings, and upon trying to insert the new retainer in, i see that it is stripped. It will not catch to tighten back on. I don't know of a tap and die that would be large enough to attempt to rethread the hub. Here are some photo's that hopefully help in some way.

I really appreciate your help.

 

[mydlyfkryzis]

When you originally tried to remove the retainer, did you drill out the punch marks that keep it from loosening? many forget to do this.

If you did, you probably have one or two high spots. If you are careful, with a small file (hobby or "swiss" file) you may be able to clean up the entry portion of the threads so the new retainer can get a start.

 

[Lunanzar]

I totally did not drill those out, so I own that it's my own mistake. I will go buy a nice small file and attempt to clean that entry point up. I really appreciate the response!

If I can't seem to get it to lock in to start the threading, do i have any other options? It looks like the best alternative I have is to buy a whole new front wheel on ebay, which would mean I have to go through all the hassle again, and i'd hate to spend another 75 or more bucks. Is there a similar wheel that will fit I can still look for?


Thank you so much for the help.

 

[VonYinzer]

Overall your threads seem to be fine, just well used. If you can't figure out how to get everything back together yourself than take the wheel to a local machine shop (or well regarded vintage bike shop). They'll have the tools to work it out for you in a fraction of the time and usually for chump change.

 

[Flugtechnik]

I was going to suggest a small chisel but a file or knife would work too. You just need to clean up the thread runouts and the hub is aluminum which is relatively soft.


END OF LINE

 

[lingo]

I would like to point out that, if you are using sealed bearings (and it looks like you are) you don't need that retainer. All it does is hold the seal in place.

 

[mydlyfkryzis]

It's more of a bearing retainer. I'd keep it as it also fixes the outer race and keeps it from turning. It also fixes the outer race against wobble from thrust loads and wear of the bore.

It may work without it, but it wouldn't be a bike I'd want to ride.


Sent from planet Earth using mysterious electronic devices and Tapatalk

 

[lingo]

It's more of a bearing retainer. I'd keep it as it also fixes the outer race and keeps it from turning. It also fixes the outer race against wobble from thrust loads and wear of the bore.

I am curious. Why don't they have them on both sides of the hub then?

 

[mydlyfkryzis]

I'll guess. The bearing is completely captured on one side. The other side has no capture.

You only need one side completely captured to make sure the wheel cannot move side to side. So the completely captured bearing is a thrust loaded bearing that positions the wheel correctly. The other side doesn't not need to be, in fact, being "loose" on one side allows for variation in the tolerances.

So , in anther words, when you tighten the axle, the captured bearing gives a definite position to the wheel that cannot slip or be changed. the other side does not need to do this too..

 

[Lunanzar]

So all it ended up taking was a knife and a hammer. I just started to hammer from the inside threads, which seemed relatively fine(as stated above) and hammered outwards. It took some time, and some chunks certainly came off, but it went in. Moving forward yay!!

You guys rock