So I finally finished the sealed bearing conversion on my puch snowflakes. I also painted the wheels for shits and giggles because I cant afford to powder coat them right now.
They turned out great!
So here is a step by step on how to convert your Puch mags to sealed bearings.
You will need:
2X Treats axles found Here
2x 6201z bearings which are 12ID 32OD 12w found on ebay or you can order them through me at kazbajosh@gmail.com for 10 bucks shipped or ebay
2x 16101ZZ (same as 161012Z) found here
2x spacer from your local hardware store(use some 12mm id pipe)
10X 12MM ID WASHERS
Step one: place a small amount of locktight blue inside the wheels where the bearings will sit.
Step two: use a rubeer mallet and the 12mm shaft with nut to set the bearing on one side in place.
Step three: make spacer for inside of wheel. This spacer will make sure your bearings stay in place and roll smoothly, this will take some sanding and precision measurements.
Step four: Place spacer inside hub on axle.
Step five: Place other bearing in hub and pop into place with a rubber mallet.(be careful not to damage the sidewalls of the bearing while doing this)
Step six: Correctly space out your brake hub and wheel. This is going to take some time and courage folks. Those ten ID washers are so you can get the wheel perfect. Each setup is different so you will have to experiment.
Ok then you should have some sick, slick, sexy ass wheels that are as smooth as this stuff
Keeping Up With the Joneses 
Alright!
Thanks for posting but I have a few questions…
1. Was it hard to knock out the races for the old bearings and get the
wheels ready for the sealed bearings?
2. All the front 6201Z bearings I can find are 12x32x10. The bearings
you show to have used are 6201Z but have dimensions of 12x32x12.
Can you confirm either the number or the measurements?
This seems alot easier than I thought! I thought I would have to take it to a machine shop and have someone else do it. Thanks again for the information.
Dope. Way to keep it classy Jones!
Your blog is so informative … ..I just bookmarked you….keep up the good work!!!!
This post is a life saver. Thank you for posting this…
Wish me luck…
I have a question about the rear wheel. The freewheel sprocket connects to the bearing cup on the rear wheel. Since the wheel will now have a sealed bearing, do you loose the ability to connect the bearing cup (and subsequently the ability to pedal)?
this is just what i was looking for!!! thanks so much man and great job