Bearing questions

I got them replaced! I took a leap of faith and measured them with a ruler and ordered them off of Amazon. Surprisingly my measurements were accurate and the new ones went right on. A caliper is my next purchase, I think. I took it all apart and cleaned up the inside and the spindle and everything. The other bearing wasn't near as bad as the one I took a picture of, but it was pretty dirty and the grease was really hard. I got a set of four bearings off of Amazon and I think it was 8 bucks. And no doubt they are the finest Chinesium available. I wiped off all of the grease they came with and put on some red Mobile. I'll trust the Chinese steel a little, but not the grease. Here they are:
IMG_2614.JPG

It is amazing how much easier it is to pedal now. Thanks again everyone for your assistance!
 
Aspiring Speedster said:
I got them replaced! I took a leap of faith and measured them with a ruler and ordered them off of Amazon. Surprisingly my measurements were accurate and the new ones went right on. A caliper is my next purchase, I think. I took it all apart and cleaned up the inside and the spindle and everything. The other bearing wasn't near as bad as the one I took a picture of, but it was pretty dirty and the grease was really hard. I got a set of four bearings off of Amazon and I think it was 8 bucks. And no doubt they are the finest Chinesium available. I wiped off all of the grease they came with and put on some red Mobile. I'll trust the Chinese steel a little, but not the grease. Here they are:View attachment 215302
It is amazing how much easier it is to pedal now. Thanks again everyone for your assistance!
Click to expand...
The harbor freight digital calipers are decent
 
Aspiring Speedster said:
I was eying those last time I was there. But $60 Harbor freight vs. $20 Amazon. And on Amazon I can get a digital one, because reading fractions is one of my weak points when it comes to schoolwork or anything else, lol.
Click to expand...
Fractions are easy after you learn college level calculus lol. When working with unit circles you have to learn fractions.
 
Of all the tools in my box the calipers are what I couldn't live without. Really nice for measuring drill bits. Forget the temptation of getting the electrical ones that convert to metric. They'r OK till the battery goes dead. I use one that has a circular dial readout. Just my preferance.
 
You can use white vinegar to remove rust from hardware. Nice inexpensive method of chemical rust removal that won't eat your skin from your body, and may even make you hungry from the smell. I use it often with bolts, nuts, or hard to find assemblies that may have a bit of surface rust on them. Just rinse with distilled or de-ionized water and then give them a hit with some WD40 to keep them flash rusting. Dry them off, and then a little spray or dunk in oil (wd40 is a solvent and will dry/fade) or a light smear of grease to help protect them from future corrosion. I've used vinegar to restore chains on bikes that were left out in the rain for a while. New chains are cheap, but not having to spend any money and keeping something functional is cheaper.

Said vinegar is re-usable as well, and if it starts to get bits and gunk floating in it, put it through a coffee filter. 1 gallon of walmart brand white vinegar is also less than $4.

It also works great for de-rusting gas tanks.
 

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