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Cartridge Bearings for Yuba Mundo

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Cartridge Bearings for Yuba Mundo

Old 11-03-14, 03:23 PM
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storckm
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Cartridge Bearings for Yuba Mundo

So the sealed cartridge bearings on my Yuba Mundo need to be replaced. I can wiggle the wheel from side to side a little, and the bearings feel just a little rough when I spin the wheel.

I've only ever dealt with cup and cone bearings, so I'm not sure what I need. The rear wheel has a massive (14mm) axle, while the front has an ordinary axle (9mm, I believe). Looking on Amazon, it seems that most of the cartridge bearings for bicycle hubs are 8mm wide, but that the inner and outer diameters vary. What dimensions do I need to match, and should I be getting these from a local shop, or online?

Last edited by storckm; 11-03-14 at 03:27 PM.
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Old 11-03-14, 03:41 PM
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First, get the bearing out of the wheel. Most of the times there will be VERY SMALL print on the side of the cartridge with some numbers. Obviously, the diameter needs to match but also the angles so it seats properly inside the hub. Any idea what the hub is? If all else fails, yes.... take it to a shop. Sounds like the axle is an oddball size but at least the correct one should get ordered.
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Old 11-03-14, 11:07 PM
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Cartridge bearings come in standard sizes. If you can get them out, take them to a bearing supply store. Chances are they have what you need on the shelf.
(I did exactly that last week, even though Portland has a bike shop on every corner not occupied by Starbucks.)
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Old 11-03-14, 11:39 PM
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once you have the size and if you don't have a bearing store, I've had luck with these guys.

Ball Bearings online:Buy VXB bearing online
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Old 11-04-14, 08:12 AM
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Thanks. I don't know of any bearing supply stores locally, although there may be one. I use the bicycle five days in the week to take my smallest children to school, so I don't want to have it out of commission waiting for bearings longer than I have to. They could ride their own bikes, but that would take more time in the morning. I think I'll wait until they have a couple of days off for Thanksgiving.
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Old 11-04-14, 08:32 AM
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If you can not afford much down time, chances are if you call/email Yuba they will know exactly what bearing you need to order and may be able to send some straight from Yuba. That would be ideal because you do not have to take things apart and then reassemble just to wait on parts and then do the whole thing again. Removing the axle is not terribly difficult but it is nice to not to the same work twice when possible.

If they do not have bearings they can send you, the longest lasting bearings I have found are from REAL WORLD CYCLING AFTERMARKET COMPONENTS, BEARINGS, & SEALS and they seem to have one of the best selections out there. The other company making top notch bearings is Phil Wood although they do not have nearly as many models and tend to cost a bit more.
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Old 11-04-14, 11:18 PM
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Originally Posted by storckm
Thanks. I don't know of any bearing supply stores locally, although there may be one. I use the bicycle five days in the week to take my smallest children to school, so I don't want to have it out of commission waiting for bearings longer than I have to. They could ride their own bikes, but that would take more time in the morning. I think I'll wait until they have a couple of days off for Thanksgiving.
A quick Google search for "bearing supply Columbus Ohio" turned up 7 locations, generally on the west side of town. I don't know if any will be open over Thanksgiving (I doubt it), but if you get the bearing specs from Yuba, I bet you'll be able get the correct ones ahead of time.
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Old 11-06-14, 07:44 AM
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Thanks. Contacting Yuba was a good idea. In case anyone needs to know, the bearings are 6001-2RS (Front) and 6902-2RS (Rear).
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Old 11-06-14, 11:06 AM
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I got 4 6001 'enduro'* bearings they are made to use a 90% fill its all balls in there ..
* in QBP inventory..

The stock Bullseye cartridge ones were rolling in separators less balls in the compliment,
likely electric motor a better application , but thats what Roger D bought, back then.

I expect you can find a 90% fill 6902 as well

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Old 11-06-14, 11:45 AM
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ENDURO RADIAL STEEL BEARINGS FOR WHEEL HUBS
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