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Suspension & Braking
Have some questions about suspension or brake setups for your E46 BMW? Get all your answers here!

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Old 10-23-2013, 10:36 AM   #1
WDE46
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Timken Front Wheel Bearing/Hub from Autozone

I am making this thread to report my findings on the Timken front wheel bearing/hub sold by AutoZone for ~$50. This is about half the price of OEM parts from any other retailer. The AZ part number is 513125. Do not get the Duralast part. I examined one and it sucked.

TO BE CLEAR:

TIMKEN IS SELLING OEM HUBS IN THEIR PACKAGING.

DON'T EVEN THINK ABOUT LOOKING ELSEWHERE THIS IS THE BEST DEAL ON BEARINGS YOU CAN GET.



I went to two separate AZ stores. Each had one hub in stock. As you can see, they are Timken boxed, but one is F.A.G. (OEM) and the other is Koyo (Japanese). I am fine with putting either of these brands on my car.



My visual exam of the parts leads me to believe that the Koyo part is higher quality. The tooling marks are much more fine and the bearing feels better constructed. The F.A.G. looks like it was spun too fast in the lathe when they cut it and caused that discoloration you see. If it's a heat treatment, then it might be a good thing.

UPDATE:

unevolved has some insights on the discoloration that I hadn't considered.

Quote:
Quote:
Originally Posted by unevolved View Post
That discoloration looks like it's from an inductive heater. Probably used when the bearings were installed.
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Originally Posted by WDE46 View Post
That would make some sense but then why didn't Koyo's part do that?
Quote:
Originally Posted by unevolved View Post
Different alloy, different process, could be a number of things. They could just be freezing the bearing with liquid N2 and having good luck pressing them in.
KOYO BEARING PICTURES:


F.A.G. BEARING PICTURES:
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Last edited by WDE46; 12-18-2013 at 03:48 PM.
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Old 10-23-2013, 10:43 AM   #2
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i think they both look great. not sure i'd worry about the discoloration as long as the end product is a great one.

HEre's Genuine BMW. Appears to look like f.a.g.:



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Old 10-23-2013, 10:53 AM   #3
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I'm not concerned with the discoloration in terms of how good the actual part is, it just seems odd. The bearing is what makes me want the Koyo more. It just feels like it was made better. The seals are more robust. The one you show is definitely F.A.G.
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Old 10-23-2013, 10:55 AM   #4
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I'm not concerned with the discoloration in terms of how good the actual part is, it just seems odd. The bearing is what makes me want the Koyo more. It just feels like it was made better. The seals are more robust. The one you show is definitely F.A.G.
eh i dunno. if i see that BMW product has that coloration, it would make me feel odd if it didn't have it. odd feeling aside, i wouldn't hesitate to use either as you say.
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Old 10-23-2013, 11:09 AM   #5
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Timken Front Wheel Bearing/Hub from Autozone

Yeah I trust the Japanese to make a good assembly. Koyo is OEM for the CSB btw.


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Old 10-23-2013, 11:12 AM   #6
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Yeah I trust the Japanese to make a good assembly. Koyo is OEM for the CSB btw.


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i saw koyo on another e46 part but i forgot what. i posted about it some time ago

our compressors are also japanese
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Old 10-23-2013, 11:26 AM   #7
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I can't think of what it would be. What other bearings do we replace on this car other than the CSB and wheel bearings?
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Old 10-23-2013, 01:25 PM   #8
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Re: Timken Front Wheel Bearing/Hub from Autozone

Any report after driving

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Old 10-23-2013, 01:28 PM   #9
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I'm planning on installing them this weekend. I don't foresee any issues whatsoever. I'm sure they'll be smooth as silk.
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Old 10-23-2013, 05:26 PM   #10
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Re: Timken Front Wheel Bearing/Hub from Autozone

Just ordered them, no shops near me. Wrt it in stock

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Old 10-23-2013, 05:39 PM   #11
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Had them for 1,000 miles now. No problem. I actually like them over F A G as well. They are standard bearings on a lot of Foreign Cars.
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Old 10-24-2013, 05:19 AM   #12
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I can't think of what it would be. What other bearings do we replace on this car other than the CSB and wheel bearings?
Belt idler bearings are made by INA. Then there's the clutch throw-out and pilot bearings. Depending on the market, OEM rear wheel bearings on the E39 were either SKF or Koyo.

I prefer any of the Japanese bearing makers and SKF and haven't been impressed by Schaeffler Group bearings (INA & ***).

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Old 10-24-2013, 05:55 AM   #13
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how about rear hub/bearings, where can i get a good deal on those? im getting a grinding noise from the rear as i take curves on the highway
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Old 10-24-2013, 07:33 AM   #14
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I prefer any of the Japanese bearing makers and SKF and haven't been impressed by Schaeffler Group bearings (INA & ***)
I think you typed F.A.G. without using periods between the letters. Censored!
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Old 10-24-2013, 07:59 AM   #15
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The replacement f a g looked exactly the same as the OP, also the genuine that I removed had exactly the same discoloration
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Old 10-24-2013, 08:32 AM   #16
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That discoloration looks like it's from an inductive heater. Probably used when the bearings were installed.
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Old 10-24-2013, 08:45 AM   #17
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Timken Front Wheel Bearing/Hub from Autozone

That would make some sense but then why didn't Koyo's part do that?


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Old 10-24-2013, 09:01 AM   #18
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Different alloy, different process, could be a number of things. They could just be freezing the bearing with liquid N2 and having good luck pressing them in.
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Old 10-24-2013, 09:03 AM   #19
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Good insight. That makes a lot of sense.
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Old 10-24-2013, 11:15 AM   #20
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how about rear hub/bearings, where can i get a good deal on those? im getting a grinding noise from the rear as i take curves on the highway
That would be your e-brake, sir
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