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EnjoyinTheRide 05-21-17 05:14 PM

Ball Bearings
 
Im replacing ball bearings on my cruisers. My question is, does a particular side (either the sprocket side or other side) wear out more than the other. Im asking because on both bikes, the sprocket side bearings were literally falling out as compared to the access side (left) which were fine. My logic would tell me the sprocket side would take more abuse due to the crank but I just wanted to confirm that ??

In all honesty these bearings were cheap oem parts (huffy) and I want to replace with better quality ones 5/16 x9. should I just take the replacements ie: a bearings a bearing or is there a better bearing to put in its place..

Im off to my lbs tomorrow, they have these replacements but I figure I would ask here as to have some backup info thanks.



https://scontent.fewr1-4.fna.fbcdn.n...70&oe=5975819F

wschruba 05-21-17 05:23 PM

Yes, the bearings under the driving elements wear out quicker.

I'm going to assume that many bike shops will just want to sell you an entire Tange/Wald bottom bracket (cups, bearings, cones, spacers), as that is the only way to guarantee that you get the right bearing configuration that works with your bottom bracket.

You can use loose bearings in the cups, though it is touchy assembling them without knocking them out of position. 5/16" bearings are also not super common in bike shops, though as you know, they do exist on bicycles. I used to stock several common size retainers for American bottom brackets, rather than try to deal with loose bearings...bring the old bearings with you, so they can visually match up the sizes, and assure you aren't going to be struggling with something that simply won't work.

fietsbob 05-21-17 05:34 PM

You need caged bearings on those Cranks to put them together.

the whole OPC BB is pretty economical.

nfmisso 05-21-17 07:39 PM

geaYou need the cups as well - the one in the picture is way beyond gone.

Get something like this: https://www.amazon.com/Wald-Bottom-B.../dp/B003UPZLI8 Make sure that you double check the threading on your bike - it has to match.

Be generous with the grease; I recommend boat trailer wheel bearing grease - it will stay in place, and not get washed out easily.

EnjoyinTheRide 05-22-17 12:59 PM

I went to the bike shop, they had one set left so I took that, said he would have more by Wed. I put them in the older bike, took it for a test run, nice and smooth. The other bike (blue) is brand new.

In each bike both bearings on the crank side blew out. The older bike was due to usage. I will say I did get a good 800 miles out of those bearings and honestly I think I have been riding it with a dislodged bearing for awhile.

The new bike I think I screwed it up when I took it apart to grease it. I think within that process of taking it apart and back together I might have misaligned abit...maybe I didnt tighten enough before a the test ride....cause that one was bent up missing 5 of the 9 bearings....

So as it stands the older cruiser now has a new set and the new one has one original new bearing and the good one from the older bike until I get the next set.

And I am going to get a whole set, like you said not expensive. My only question is how do I get the cup off is their a special tool?? turns clockwise to loosen??? never did that

thanks for your help

wschruba 05-22-17 01:20 PM


Originally Posted by EnjoyinTheRide (Post 19602290)
And I am going to get a whole set, like you said not expensive. My only question is how do I get the cup off is their a special tool?? turns clockwise to loosen??? never did that

American bottom brackets are quite easy to remove. Use a drift punch (or a large flathead screwdriver you don't like) and knock the cup out with a hammer (from the inside, of course). The new cups can be pressed in if you really wanted to, but it is unnecessary; use a large rubber mallet/plastic face hammer to seat the new cups in the frame.

EnjoyinTheRide 05-22-17 05:43 PM


Originally Posted by wschruba (Post 19602346)
American bottom brackets are quite easy to remove. Use a drift punch (or a large flathead screwdriver you don't like) and knock the cup out with a hammer (from the inside, of course). The new cups can be pressed in if you really wanted to, but it is unnecessary; use a large rubber mallet/plastic face hammer to seat the new cups in the frame.

awesome thanks


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