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Trackball question, rusty bearings ?

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tightwad:
I wouldn't bother with the time to try and de-rust the bearings (the shafts sure, they are not critical).  Even after multiple rounds of 3-in-1 the bearings will never be quite right...they get sloppy.  you can get 10 new bearings for $12.50 here: http://cgi.ebay.com/10-R4-ZZ-Z-New-Quality-Bearings-25-x-625-x196-R4-ZZ_W0QQitemZ370179504100QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item56306af7e4

The bearing you are looking for is R4ZZ (or any other suffix, just changes the shielding).


Use 6, keep 4 for spares or pass them to another needy soul

spystyle:
Sweet :)

Bearings "R4 ZZ"

You just have to know the right keywords to search for I guess.

Thanks!
Craig

smalltownguy:
Thanks for posting this! There will be a LOT of people who are searching for trackball bearings that get directed to this post. Is there anyway to ensure that information like this gets posted to some kind of wiki? I'd love to see a collection of "here's a great place to get this" info. It's getting difficult these days to find OEM stuff.

spystyle:
I think there is a trackball page for arcade wiki, and I think users can edit wiki ... So I think you can add this information where you see fit :)

I'm going to wikipedia now to say I invented Dig-Dug :)

RandyT:

--- Quote from: tightwad on January 20, 2010, 12:36:21 am ---I wouldn't bother with the time to try and de-rust the bearings (the shafts sure, they are not critical).  Even after multiple rounds of 3-in-1 the bearings will never be quite right...they get sloppy.  you can get 10 new bearings for $12.50 here: http://cgi.ebay.com/10-R4-ZZ-Z-New-Quality-Bearings-25-x-625-x196-R4-ZZ_W0QQitemZ370179504100QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item56306af7e4

--- End quote ---

It should also be mentioned that buying these types of bearings will save you some money, but you will still need to do something to remove the heavy grease they are absolutely going to be packed with.

Normally, bearings are designed for use with motors, load bearing shafts, etc. and free motion with very little mechanical load is not on the normal list of priorities.  So they get packed with heavy grease which stays put under high RPM and heat build up.  As this doesn't occur with trackballs, spinners, etc, the heavy grease is a hindrance and needs to be removed and replaced with something lighter to get a free spinning control.  Bearings bought from vendors who state they are for trackballs usually take care of this step, or special order bearings without the heavy grease.

Just wanted to make sure it was understood where the differences are in taking this approach.

RandyT

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