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Author Topic: USD Fork swap.....what should i make this bushing out of????  (Read 4608 times)

Offline Mydlyfkryzis

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Re: USD Fork swap.....what should i make this bushing out of????
« Reply #10 on: May 23, 2013, 22:06:02 »
..... would ultimately lead to a nasty catastrophic failure of some form.

I try to avoid wonderful catastrophic failures too....not just the nasty ones... ;D
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Offline hillsy

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Re: USD Fork swap.....what should i make this bushing out of????
« Reply #11 on: May 23, 2013, 22:33:18 »
It wouldn't be a "catastrophic" failure - the bearing would slop around on the stem and eventually the bearing would wear out....but the triple clamps would still hold everything together (IE: the front end won't fall off).
 
Handling would become pretty vague though - and every time you braked you would probably hear a nasty CLUNK as the bearing moved about. You'd probably stop riding the bike a long time before the bearing actually collapsed because the noises and movement would freak you out.

Offline Tim

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Re: USD Fork swap.....what should i make this bushing out of????
« Reply #12 on: May 23, 2013, 23:08:04 »
It wouldn't be a "catastrophic" failure - the bearing would slop around on the stem and eventually the bearing would wear out....but the triple clamps would still hold everything together (IE: the front end won't fall off).
 
Handling would become pretty vague though - and every time you braked you would probably hear a nasty CLUNK as the bearing moved about. You'd probably stop riding the bike a long time before the bearing actually collapsed because the noises and movement would freak you out.

Well, if the lower bearing got bodged up and locked up somehow, I'd class that as catastrophic :D  No question that would be unlikely and you'd more than likely get plenty of warning - just postulating on why the lower bearing is pressed on vs. slipped on like the upper one.
"Quality . . . you know what it is, yet you don't know what it is. But that's self-contradictory. But some things are better than others, that is, they have more quality. But when you try to say what the quality is, apart from the things that have it, it all goes poof! There's nothing to talk about. But if you can't say what Quality is, how do you know what it is, or how do you know that it even exists? If no one knows what it is, then for all practical purposes it doesn't exist at all. But for all practical purposes it really does exist."

Offline hillsy

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Re: USD Fork swap.....what should i make this bushing out of????
« Reply #13 on: May 23, 2013, 23:13:22 »
Agreed - lower bearing with any play is just......wrong.
 
And postulating is good  ;)

Offline Mydlyfkryzis

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USD Fork swap.....what should i make this bushing out of????
« Reply #14 on: May 23, 2013, 23:25:44 »
Even a worn lower bearing can cause a tank slapping wobble and high side. I consider falling off the bike or hitting something while moving a catastrophe.

Ymmv


Sent from planet Earth using mysterious electronic devices and Tapatalk
There are 10 kinds of people, those who know binary and those who don't
Ignorance is bliss....and there are a lot of happy people out there!
AlphaDogChoppers: "A friend of mine once said, "There's no such thing as a stupid question, but there sure are a lot of inquisitive idiots."
"if you need a hammer to do something...  you are probably doing it wrong" - LazloH

DTT Blue CB360 Club - We discriminate!
Mydlyfkryzis = Mid Life Crisis
------------------------------------------
1991 Honda Nighthawk 750
1976 Honda CB360t
http://www.dotheton.com/forum/index.php?topic=41649.new#new

Offline MILLENNIUM FALCON

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Re: USD Fork swap.....what should i make this bushing out of????
« Reply #15 on: May 24, 2013, 15:49:08 »
I think we can all agree that "catastrophic failure" is generally a bad thing. HAHA

I wise man once said......."No movement = No wear."

I have everything assembled I will upload some pictures later. I made the bushings with shoulders on them so they have absolutely no where to go. I had to freeze the stem and heat the bushing prior to pressing them on to get them to fit without damage. Everything tightened up nicely. My plan is to ride it for awhile checking it for play after a few rides. In the meantime I may look for a new rm stem. I found out 1 model year newer bikes use a 30mm stem so I wouldn't need a bushing. Like previously stated I think if anything does happen it will be a condition that slowly gets worse over time. I doubt the front half of my bike will explode while cruising down a fire road.....but you never know haha.

Offline MILLENNIUM FALCON

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Re: USD Fork swap.....what should i make this bushing out of????
« Reply #16 on: May 24, 2013, 18:14:58 »
Took it for a ride today.....handled great and felt much better than stock... Ill update you on the bushing wear.
So Far I have a total of $53 in the fork swap. :)







Offline Rich Ard

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Re: USD Fork swap.....what should i make this bushing out of????
« Reply #17 on: May 24, 2013, 18:17:10 »
I think we can all agree that "catastrophic failure" is generally a bad thing. HAHA

I wise man once said......."No movement = No wear."

I have everything assembled I will upload some pictures later. I made the bushings with shoulders on them so they have absolutely no where to go. I had to freeze the stem and heat the bushing prior to pressing them on to get them to fit without damage. Everything tightened up nicely. My plan is to ride it for awhile checking it for play after a few rides. In the meantime I may look for a new rm stem. I found out 1 model year newer bikes use a 30mm stem so I wouldn't need a bushing. Like previously stated I think if anything does happen it will be a condition that slowly gets worse over time. I doubt the front half of my bike will explode while cruising down a fire road.....but you never know haha.

I'm sure I'm not the only one who is interested to see how you put this together.
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Offline o1marc

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Re: USD Fork swap.....what should i make this bushing out of????
« Reply #18 on: May 24, 2013, 18:42:02 »
Ive spent hours searching and calling. Ive tried all the companies around. the bearing i need doesn't exist.  haha. I tried all balls. I ended up ordering my bearings from them but they are perfect.....but as close as I can get. If you can find it ill order it haha. making this bushing will be very simple. Much less work than a new stem. I was just getting some opinions on what material to make it out of.

Here are the sizes i need.

28x47x15

28x55x17

Did you really mean this "I ended up ordering my bearings from them but they are perfect.....but as close as I can get."?
What did you give for the front forks?

Offline MILLENNIUM FALCON

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Re: USD Fork swap.....what should i make this bushing out of????
« Reply #19 on: May 24, 2013, 19:35:12 »
Yeah I meant it...lol. That was the whole delema. No one makes a bearing with the right shaft size with te od I needed. I got it all figured out now.

When you say. "How it was put together" do you mean the forks or the bike? 

I traded a guy on CL staright up for a xt parts motor I didn't need. That is why my cost is so low.