Author Topic: CB500 Rear Wheel Bearing "Collar" - I ruined it. Where to find another? (Read 6594 times)

zanorak · « **on:** April 30, 2011, 07:26:37 PM »

Hello all SOHCers. I have a question about finding the little collar that fits between the 6305 bearing and the tube in the rear wheel of the CB500.

Where do I get a new one? Too late I found the warnings about not beating it up. In the haze of the torch and the swinging hammer I've seriously distorted this sucker. I blame the split-bolt tool from the goldwing site but that's neither here nor there. Collar is listed as #12 on the bike bandit final drive schematic for my 1972...

http://www.bikebandit.com/houseofmotorcycles/1972-honda-cb500k1/o/m9200#sch398404

Any thoughts or suggestions welcome! This is all that stands between my bike and the road. THANKS!

maxspeed140 · « **Reply #1 on:** April 30, 2011, 08:10:54 PM »

You might want to try www.cmsnl.com or honda parts direct. I got a new one for my 77 750F about 2 months ago from honda parts direct. Mine was pitted and caused a problem with my axle going in.

zanorak · « **Reply #2 on:** April 30, 2011, 08:12:03 PM »

Thanks Max. I'll check it out. I'd re-use this one if it wasn't so distorted....

zanorak · « **Reply #3 on:** April 30, 2011, 08:15:55 PM »

Yeah... "Not available..."
This is going to cook my noodle.

Bodi · « **Reply #4 on:** May 01, 2011, 05:53:56 AM »

It's really just a piece of pipe. The fingers keep it roughly centered so you can get the axle through. If I had a lathe and a small welder it would be a snap to cut and face one from a bit of suitable size pipe and then weld on some coat hanger wire or similar for fingers.

zanorak · « **Reply #5 on:** May 01, 2011, 08:05:09 AM »

That's not the part I mean Bodi. There's a little tubular puck that goes between the bearing and the tube you're talking about. It mus be some kind of spacer.

shizzomynizzo · « **Reply #6 on:** May 01, 2011, 11:44:32 AM »

I've got an extra wheel from a parts 550 I have...if it's there and the same as the 500, it's yours....only problem it will be a week before I get back home.

m00ntan · « **Reply #7 on:** May 01, 2011, 01:05:06 PM »

Sorry to here that Zanorak.

There's one in my back yard somewhere and you're welcome to it.

I can tell you what happens if you ride without it:

http://forums.sohc4.net/index.php?topic=13485.msg137721

Good luck.

zanorak · « **Reply #8 on:** May 01, 2011, 06:53:20 PM »

Thanks Shizzy and Moon. I'm gonna keep searching. Last week I happened by a guy with a "chopper" cb500 from the 70's he was selling. I think I'll find out if it's still available. The $400 bushing... ugh.

78 k550 · « **Reply #9 on:** May 01, 2011, 07:46:26 PM »

pretty sure I have a 500 hub. The rim was rusted bad and put on a 550f rim.

Paul

HondaMan · « **Reply #10 on:** May 01, 2011, 09:01:42 PM »

If all else fails and I can get one (or the old one) in my hand, I have a lathe and could make one...

Bodi · « **Reply #11 on:** May 02, 2011, 05:20:47 AM »

OK, this is a collar that steps from the axle size (14mm) up to the bearing size (17mm) and adds a bit of spacer. Find someone with a lathe. You should be able to guess the original "spacer" width but it isn't critical, within a mm or so big or small should be OK. A scrapyard somewhere has this part, but finding one may be tougher than making one. Post here on "parts wanted".

zanorak · « **Reply #12 on:** May 04, 2011, 08:30:58 AM »

Hmmm... that's funny. Mine miked out at 20mm inner and 25 outer?

HondaMan · « **Reply #13 on:** May 04, 2011, 02:32:47 PM »

Quote from: zanorak on May 04, 2011, 08:30:58 AM

Hmmm... that's funny. Mine miked out at 20mm inner and 25 outer?

You might just take a run down to Ace Hardware: in their bolts section they have some metric steel collars that might just fit that baby (although you'd have to cut it off, as it will be about 50mm long).

zanorak · « **Reply #14 on:** May 05, 2011, 05:04:58 AM »

Is the collar spacer part really important? I would think it's just for aligning that inner tube of the wheel but I'm not engineer.

wrenchmuch · « **Reply #15 on:** May 05, 2011, 05:25:44 AM »

That spacer is essential . With out it tightening the axle bolt will pull the bearings together destroying them . Any machine shop should be able to make it for a reasonable price . The end that fits into the bearing should be easy to figure out as far as outer diameter is concerned and the inner diameter is slightly larger than the axle bolt ( spacer tube might be used as a reference here) . The shoulder that is outside of the bearing sitting against it needs to be fairly close but like Bodi said you could be off by 1mm and it would be fine .

HondaMan · « **Reply #16 on:** May 05, 2011, 03:19:22 PM »

OK, now I'm getting confused. Bodi was talking about the tube spacer between the bearings in his post above: is this the one you need? It's just a pipe of a specific length, which keeps the bearings from being side-loaded when you tighten the axle. There is a second spacer between the middle wheel bearing and the sprocket carrier, which also has a bearing, and it is there for the same reason.

Which one do you need?

wrenchmuch · « **Reply #17 on:** May 06, 2011, 05:30:20 AM »

Quote from: HondaMan on May 05, 2011, 03:19:22 PM

OK, now I'm getting confused. Bodi was talking about the tube spacer between the bearings in his post above: is this the one you need? It's just a pipe of a specific length, which keeps the bearings from being side-loaded when you tighten the axle. There is a second spacer between the middle wheel bearing and the sprocket carrier, which also has a bearing, and it is there for the same reason.

Which one do you need?

I think he's after the stepped spacer that fits into the the bearing in the sprocket carrier .

Kirby · « **Reply #18 on:** May 06, 2011, 05:45:36 AM »

Zano: #12 on the rear hub exploded view. I will check my parts bin today(left over from the parts bike for my '72 CB500 project) I should have a complete hub assembly. Kirby

Fritz · « **Reply #19 on:** May 06, 2011, 08:17:35 AM »

I just looked into my cross-reference table.

The spacer in question (Honda PartNo 42625-283-000) has been used in the following models (and maybe more):

CB 450 "Black Bomber"
CB 450K7
CB 500T
CB 500K
CB 550K/F

So it shouldn't be too hard to find a wheel containig the missing part.

Good luck!
Carsten

zanorak · « **Reply #20 on:** May 07, 2011, 12:28:56 PM »

Thanks all! I appreciate the support. Wrench is correct, it's the stepped spacer I'm looking for.
Kirby, if you have one of these I'd gladly buy the whole hub to save you any more trouble than dropping it in the mail!
Just let me know where to send the letter.

Yes, like a horse with no legs my bike sits there in the corner of the garage, glowering as I work on other projects. I have to reassure her that i never meant any of the things I said, and that soon she'll be better than new. Then I bought another motorcycle. :/ She'll never forgive me.

zanorak · « **Reply #21 on:** May 08, 2011, 09:17:22 PM »

Hey guys, I miss this old lady. Been looking for replacements for that spacer. I found a bronze piece at McMaster-Carr for like 7 bucks. I think I could have it turned down to 25mm OD to fit. Does bronze sound strong enough for this application? The original appeared to be a case-hardened mild steel, but the casing color could have come from hot grease or whatnot. Thoughts?

Kirby, if you've got an undamaged one I'm still in the market!

HondaMan · « **Reply #22 on:** May 08, 2011, 10:35:36 PM »

Quote from: zanorak on May 08, 2011, 09:17:22 PM

Hey guys, I miss this old lady. Been looking for replacements for that spacer. I found a bronze piece at McMaster-Carr for like 7 bucks. I think I could have it turned down to 25mm OD to fit. Does bronze sound strong enough for this application? The original appeared to be a case-hardened mild steel, but the casing color could have come from hot grease or whatnot. Thoughts?

Kirby, if you've got an undamaged one I'm still in the market!

Bronze will be fine. The loads are low here. The Japanese used steel 'cuz it was cheaper.

m00ntan · « **Reply #23 on:** May 09, 2011, 06:52:03 PM »

Quote from: wrenchmuch on May 05, 2011, 05:25:44 AM

That spacer is essential . With out it tightening the axle bolt will pull the bearings together destroying them . Any machine shop should be able to make it for a reasonable price . The end that fits into the bearing should be easy to figure out as far as outer diameter is concerned and the inner diameter is slightly larger than the axle bolt ( spacer tube might be used as a reference here) . The shoulder that is outside of the bearing sitting against it needs to be fairly close but like Bodi said you could be off by 1mm and it would be fine .

The brake plate will rub and melt to the hub before the bearings are squeezed. First hand knowledge.

zanorak · « **Reply #24 on:** May 09, 2011, 09:36:33 PM »

Hey guys, thanks for all the replies!

A development: I showed this to the guy who runs a model shop for .. .models. He says that this one I have isn't production either - the cuts are all wrong and the grinding was done improperly. SO - this one is from somebody's backyard lathe as well! HA. I'm not the first to bugger this thing. Anyway, he's going to ask a guy to cut one from cold rolled steel for me and we'll see if that fits.

Hopefully it will. Should take the guy 15 minutes to do.

wrenchmuch · « **Reply #25 on:** May 10, 2011, 06:07:09 AM »

Grease the new one when you put it in .

zanorak · « **Reply #26 on:** May 10, 2011, 01:51:40 PM »

Wow was this thing greasy! It wasn't good grease either - it was thin and runny. I think that somebody powerwashed these bearings.

zanorak · « **Reply #27 on:** May 20, 2011, 10:40:16 AM »

I had a new one made! Thanks everybody for your advice. It cost me a case of beer!

Looks way nicer than the other part - I'm sure that somebody else messed this part up and the one I had was a replacement.

wbd1514 · « **Reply #28 on:** June 20, 2012, 04:26:55 PM »

I know this is digging up a really old topic - but I'm in need of this stepped collar (honda p/n: 42625-283-000).

I can't seem to find a place to buy one and I don't have enough info (specifically the length of the larger diameter step) to try and get one made.

If my only option is to buy another hub, then I'll do it - but i figured I'd seek help from the collective here first....

Anyone got one I can buy...or one they will take the dimensions on so I can try to make a duplicate.

Can't put this hub back together and get started trying to re-spoke and true the wheel without this part

--Will

m00ntan · « **Reply #29 on:** June 21, 2012, 08:08:49 PM »

I'm still searching my yard, but it soesn't look promising. Good luck.

lucky · « **Reply #30 on:** June 21, 2012, 10:33:34 PM »

It sure would have been nice to see a photo of the part!!

wbd1514 · « **Reply #31 on:** June 26, 2012, 05:08:02 AM »

I ended up finding a reaonable deal on ebay and buying another wheel. Here's a photo of the problem collar and dimensions (if I can get them attached)...hopefully this will help the next guy.

News:

Author Topic: CB500 Rear Wheel Bearing "Collar" - I ruined it. Where to find another? (Read 6594 times)