Disassembling bearings

[Kiwi1966]

Thoughts please on disassembling bearings to check for spalling, pitting etc.Normally I clean than spin them by hand and listen for rumbling and make a guestimate to either reuse or bin them. By pulling them apart you can have a good look , anybody else do this (diffcarrier bearing shown)

[Dale M.]

Its not something I would do unless it was after bearing was replaced just to see IF IT REALLY WAS cause of some strange transaxle noise....

If you take it apart I seriously doubt you will ever get it back together and be reliable.....

Dale
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All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ...

[Bruce]

[FreeBug]

[Casting Timmy]

I don't see it as a bad thing, but I would probably also consider how that plastic feels when you put it back together.

I like IRS a lot more, main shaft bearings can have problems with the cages popping out so some like to flip the 002 mainshaft bearing over so the cage is trapped by the 4th gear thrust washer. Not something you have to worry about 90%+ of the time, just in high performance applications.

The diff bearings would be lucky in that they don't get that tendency.

I wouldn't consider these sealed bearings, they get the oil from the transaxle. The plastic cages do cover up the one side a lot though. I do prefer the metal caged bearings mianly for the metal cage, but they're also more open on both sides as well. Although Dangerous Dave made a good comment in a thread I read in the past that when these are spinning at 70 mph, plastic or steel caged that it's really spinning to fast for oil to get through. This is why people do side cover and diff mods to get oiling in aftermarket diffs.
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http://www.lulu.com/shop/tim-marshall/t1-irs-transaxle-book/paperback/product-24055997.html
As seen in Volks America Issue 14 Page 11 (Full page review)

[nsracing]

the plastic cage side bearings are easy to put back together. If you can take it apart, it can be put back together.

I will let people figure it out for themselves. a/nd no it does not include a hammer or chisel to do it.

[busdaddy]

Agreed, if it comes apart easy then why not look it over inside?, if it checks out there's no reason not to put it back into service, it's probably better quality than any new one available now.
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[Dale M.]

[mark tucker]

if the bearing is bad I trash it or use it for a tool ,or something else. if it's good I clean and reuse...sometimes. yes there are still good bearings being made. china has bought and installed a few Studer ( made in switzerland)machines in the past few years for making bearing races, shafts&such. china also has the same machine( made in china) that does about 1/4 the quality machining. most all aerospace uses Studer machines. studer is perfecting a edm lathe for faster lathe work.I know some people that work there and install & train the buyers operators. they are the most expensive machining machines built, along with being the best. and yes china still makes shit bearings. but much better shit than 15 years ago.

[nsracing]

The steel caged ones you don't want to take apart. There, we have covered them all. A brush and cleaner will do to have them squeaky clean.

[Bruce]