Just read this, just wondering how the installation worked out for you. You're right that you have to support the inner race of the bearing when pressing it onto the shaft. This is true anytime you press a roller type bearing onto a shaft of any kind.
Oh, and the bearings for the super jolly was a metric 202 bearing with dual shielding. I covered them with a food safe grease I had obtained earlier from grainger.
So, final cost to repair the bearings:
36$ for blind bearing puller (on sale with coupon) 100$ for shop press (on sale with coupon) 12$ for each bearing (2 required)
Total: 160$ parts and tools.
Rise Bakery and Coffee, San Antonio, TX. http://www.risebakeryandcoffee.com
Good to hear that the bearings were easily found, I'm looking for a Mazzer Mini that would be in need of some work. (rebuild) Came across this thread and filed it under FYI for future reference. Thanks for the replies.
I doubt you would ever find a mazzer mini that would need the bearings replaced as the minis are targeted at homeowners. I would suggest avoiding anything with doser sensors as it needlessly complicates things and adds expensive parts likely to fail. (my 2c)
This machine was one of the "tagex" machines that came out of a *$, and a *rough* looking one at that. It spent about 1.5 years on my commercial counter as a decaf grinder and one day made a shriek so bad I thought there was a rock in the burrs.
Edit: BTW, I put the prices of the tools I had to buy to let people know that while it is possible to repair, they may just want to spend some extra money on a nicer grinder. :) I'm probably not the average coffeegeek.com user as I have a commercial cafe and have lots of equipment that seems to break often. I will, unfortunately, likely use these tools again, so it's worth the investment to me.
Rise Bakery and Coffee, San Antonio, TX. http://www.risebakeryandcoffee.com
Zdunk31 Senior Member Joined: 27 Sep 2010 Posts: 97 Location: Turnersville, NJ. Expertise: Just starting
Espresso: Bezzera BZ 35R DE Grinder: Mazzer Super Jolly Drip: Auto Roaster: Home-made, on the drawing...
Posted Sat Mar 5, 2011, 8:27am Subject: Re: Mazzer Bearing Replacement
Understand about the tool thing, I am a mechanic by trade and have or have access to the needed tools. But I'm sure the average person would be better putting their money into a decent grinder. This has turned into a hobby of sorts as I bought a Bezzera Machine that I'm rebuilding and know I'm going to need a decent grinder. Was looking at picking up a grinder that needs work, at a price that would make it feasable. Agree with staying away from the electronics because of the price of replacement or repair of the componets. Also found a thread about upgrading the Mini's 58mm burrs to the SJ 64mm, ( grind quality )so that's where I'm kind of heading. I really don't care how rough the finish is, if it's that bad I could disassemble the grinder and strip the finish off and have it powder coated. If I want to I can always buy the Mazzer badge to put back on for astechetics, but as long as the motor works and the doser chamber is intact I can work with it from there. Thanks again for the insite on the bearing replacement, good tho know for about $25 and the right tools this can be a easy project.
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