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  #8161  
Old 04-28-2015, 04:40 PM
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bluegoatwoods bluegoatwoods is offline
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Default Re: what did you do to your motorized bicycle today?

I've been having a bit of trouble with my rear wheel.

Last Thursday I was on my way to work when the rear wheel suddenly locked up. It definitely looked as though the brake was applying without back-pedaling. (single speed, coaster brake.) I tried to free it up for a bit. Then I gave up, locked the bike to a guardrail and walked the rest of the way. Picked it up with my car that evening and took it home.

I got my chance to work on it yesterday. Took that hub apart and found that the left wheel bearing was toasted. Replaced it, put it back together carefully, rode it a couple hundred feet and all seemed okay. (Used my last spare bearing, too. But I'll soon get more on hand.)

Took it out for a longer test run. Got about a half mile from home and she really seized up this time. My brake arm is now twisted into a horseshoe shape. I don't doubt for a moment that I'll find that bearing shredded again. Probably other damage as well.

So today I took the rear wheel from my old Huffy Cranbrook and put that on. A couple mile test run showed no trouble. I want to adjust the wheel just a bit more and take it for another test run here shortly. But it feels like it's roadworthy.

So next I'll get new guts for a Shimano CB-E110 and rebuild my primary hub. I'm gonna have to figure out just what mistake I'm making in installation/adjustment. I've gone through more bearings than I ought to. It's the bearing under the brake arm that gives me trouble.
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  #8162  
Old 04-28-2015, 05:52 PM
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mapbike mapbike is offline
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Default Re: what did you do to your motorized bicycle today?

Quote:
Originally Posted by bluegoatwoods View Post
I've been having a bit of trouble with my rear wheel.

Last Thursday I was on my way to work when the rear wheel suddenly locked up. It definitely looked as though the brake was applying without back-pedaling. (single speed, coaster brake.) I tried to free it up for a bit. Then I gave up, locked the bike to a guardrail and walked the rest of the way. Picked it up with my car that evening and took it home.

I got my chance to work on it yesterday. Took that hub apart and found that the left wheel bearing was toasted. Replaced it, put it back together carefully, rode it a couple hundred feet and all seemed okay. (Used my last spare bearing, too. But I'll soon get more on hand.)

Took it out for a longer test run. Got about a half mile from home and she really seized up this time. My brake arm is now twisted into a horseshoe shape. I don't doubt for a moment that I'll find that bearing shredded again. Probably other damage as well.

So today I took the rear wheel from my old Huffy Cranbrook and put that on. A couple mile test run showed no trouble. I want to adjust the wheel just a bit more and take it for another test run here shortly. But it feels like it's roadworthy.

So next I'll get new guts for a Shimano CB-E110 and rebuild my primary hub. I'm gonna have to figure out just what mistake I'm making in installation/adjustment. I've gone through more bearings than I ought to. It's the bearing under the brake arm that gives me trouble.

e sure you're not over tightening the bearings, they need to be snug with little to no play in them but over tightened bearings of those type will fail quickly.

What kind of grease are you using?

I personall6 think a High Tack grease with Molybdenum/Moly in it is best, Ive never had a single bearing failure in any of my wheels, front, coaster, multi speed type.

I like the braking of the E110 Shimano hubs the best, but even my Huffy Falcon hub has done a great job, pulled it down for general maintenance a while back for the first time since 2010 qnd the guts still almost look brand new it only has a little over 1000 miles on it, but they have been rough miles on these ver6 rough dusty dirt roads I ride and not a single issue, the engine on that bike has a sweet spot at 34mph according to my speedo and that is where it has been run for the majority of those miles so the wheels haven't been babied on it, jus5 properly tensioned bearings and a High Quality Tacky Moly grease made by Schaeffer is what I have that hub full of and I use another type grease also in my wheels made b6 a compan6 called arrow Magnolia, its so dang expensive though I've stopped packing my bike bearings with it and sticking with the Schaeffer Premium Moly Grease, its also a very good grease, just kinda hard to find.

Im gonna suggest you look closely at the bearing race in the hub itself, if it has heat stress cracks or is scolloped from all those other bearing failures you will never get a bearing to last running on that kind of surface and you need to either replace tha5 hub or just get an entire new wheel with new hub.

Hope you get this sorted out quickly, and hope the Huffy wheel gives you good service in the meantime, just make sure you dont get those bearing to tight, if you do you get serious heat buildup and the tolerances are to tigh5 for the grease to get in between the moving parts and that bearing is gonna cook quickly, just a slight amoun5 of play in the bearing is better than a bearing of that type that is to tight.

Map
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  #8163  
Old 04-28-2015, 06:02 PM
curtisfox curtisfox is offline
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Default Re: what did you do to your motorized bicycle today?

Also i found that adjusting the bearings just right then getting it all together and tighten the outer nuts puts a lot more pressure on and then the bearings are to tight.

Takes a little playing to get them just right. When done right they should spin really free and have no side play ..................Curt
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  #8164  
Old 04-28-2015, 06:07 PM
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bluegoatwoods bluegoatwoods is offline
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Default Re: what did you do to your motorized bicycle today?

"e sure you're not over tightening the bearings, they need to be snug with little to no play in them but over tightened bearings of those type will fail quickly.

What kind of grease are you using?...........

......................just a slight amoun5 of play in the bearing is better than a bearing of that type that is to tight." --Mapbike.

It all sounds like good advice, Map. And I'll bet that my trouble does lie somewhere in the bearing adjustment/grease issue.

When adjusting my bearings I tighten the cone until I can feel no play in the bearing. Then I run the lock nut up against the cone. I, mostly, loosen the cone against the lock nut rather than tightening nut against cone. And I think I adjust things fairly well. But maybe I'm getting them a bit too loose. Maybe. I'll have to keep on working it until I find something that I'm certain is right.

The grease I've been using is basic, cheap red stuff from the auto dept at the Beast of Bentonville. Maybe I'd better try something of higher quality.

And I will inspect those races. If another hub, or wheel, is in order then so be it. I'll get this stuff right sooner or later. I just hope it isn't way, way later.
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  #8165  
Old 04-28-2015, 06:08 PM
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xseler xseler is offline
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Default Re: what did you do to your motorized bicycle today?

Blue, I've got a red 26" Huffy rear wheel with 12 ga spokes if you need it. The bearing races look good --- though I wouldn't reuse the 'guts'. I also use red grease, Lucas Red-n-Tacky. Great stuff!

The price with shipping would be ----- "gratis". Just let me know if you need it.
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  #8166  
Old 04-28-2015, 06:09 PM
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bluegoatwoods bluegoatwoods is offline
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Default Re: what did you do to your motorized bicycle today?

"Also i found that adjusting the bearings just right then getting it all together and tighten the outer nuts puts a lot more pressure on and then the bearings are to tight.

Takes a little playing to get them just right. When done right they should spin really free and have no side play ..................Curt "

Thanks, Curt. Perhaps I am getting those bearings too tight when I tighten the axle. I'll have to experiment with it.
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  #8167  
Old 04-28-2015, 06:22 PM
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bluegoatwoods bluegoatwoods is offline
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Default Re: what did you do to your motorized bicycle today?

"Blue, I've got a red 26" Huffy rear wheel with 12 ga spokes if you need it. The bearing races look good --- though I wouldn't reuse the 'guts'.

The price with shipping would be ----- "gratis". Just let me know if you need it." --xseler

A nice, nice offer, xseler. Thanks a bunch. The community spirit in this forum is inspiring.

I don't expect that I'll need to take you up on that offer since wheels are just not that expensive. If I lose my job, or something like that, then maybe I'll be knocking on your door.

There's been a time or two when I've noticed some poor soul who needs a part that I happen to have, and have no use for. I've tended to not step forward because I've never felt that the stuff I need is so expensive that I can't just buy it. And I tend to think that the same thing applies to most of those who I see here.

But that may not be strictly true. A few posts have made it clear that the writer is unemployed or under-employed. For them a wheel, say, could well be out of reach. I'll have to try to keep an eye out for such folks and then pay offers like this forward.

Thanks again.
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  #8168  
Old 04-28-2015, 06:40 PM
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boxcar boxcar is offline
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Default Re: what did you do to your motorized bicycle today?

Xseler and blue ....... Good form.....
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  #8169  
Old 04-28-2015, 06:45 PM
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mapbike mapbike is offline
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Default Re: what did you do to your motorized bicycle today?

Good deal bgw,

Just make sure the running surfaces for the bearings is in good shape, use a high tack grease like the Lucas Red n Tacky and get the bearings snug but not tight once wheel is mou ted and axle nuts are tight against frame dropouts and you should be good to go.

Best wishes
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  #8170  
Old 04-28-2015, 06:50 PM
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xseler xseler is offline
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Default Re: what did you do to your motorized bicycle today?

I usually have the cone wrench on the cone when I tighten the wheel to the dropout. This way I know that the cone hasn't turned.
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