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Old 08-23-2014, 11:40 AM   #1
BMWboi
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Help, is my front wheel bearing hub assembly missing a part? (Turner Motorsport)

Hi,

I bought the front wheel bearing hub assembly from Turner Motorsports. But looks like I'm missing some sort of cover on the front of the assembly as the wheel bearings are exposed:

And the old cover doesn't fit as the part is slightly different.





What do you think?
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Old 08-23-2014, 02:03 PM   #2
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According to the internet this is by design and the dust cap is suppose to protect the bearings. I'm not convinced but I guess no choice.
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Old 08-23-2014, 02:14 PM   #3
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Did you try contacting Turner?
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Old 08-23-2014, 02:16 PM   #4
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Yes that is weird. Return it. Dirt is going to ruin that bearing very quickly.

Check out my thread for what they should look like:

http://forum.e46fanatics.com/showthread.php?t=1010936
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Old 08-23-2014, 02:53 PM   #5
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Quote:
Originally Posted by BMWboi View Post
Hi,

I bought the front wheel bearing hub assembly from Turner Motorsports. But looks like I'm missing some sort of cover on the front of the assembly as the wheel bearings are exposed:

And the old cover doesn't fit as the part is slightly different.





What do you think?
That hub is missing the bearing seals!
Glad you didn't try to install the unit, the pressure you use to push the hub onto your kingpin will most likely force out the inner races and release all those ball bearings.

First time I've ever seen a hub remanufactured like that... interesting.
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Old 08-23-2014, 03:00 PM   #6
WDE46
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Originally Posted by BimmersGarage View Post
That hub is missing the bearing seals!
Glad you didn't try to install the unit, the pressure you use to push the hub onto your kingpin will most likely force out the inner races and release all those ball bearings.

First time I've ever seen a hub remanufactured like that... interesting.
Seals don't keep the balls in. Plus, if you only push on the inner race like you're supposed to, the balls could never come out.


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Old 08-24-2014, 07:20 AM   #7
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The bearing is sealed.


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Old 08-24-2014, 09:26 AM   #8
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The bearing is sealed.


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Can you elaborate? What if dirt and water get into where those exposed ball bearings are?

Though a person on this page seems to agree:

“Yes when you open the box it appears that there's a bearing seal missing, but it's not the only bearing in the assembly and it gets closed off to the elements via the $6 dust cap that you should also be replacing. It's actually a superior bearing design to that of the o.e. *** unit that had failed, so why it looks a little different is a matter of course."

http://www.fcpeuro.com/products/bmw-...ub-31221139345
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Old 08-24-2014, 10:01 AM   #9
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If this is by design, then I'd use it. Just varies from OE. But I'm not paying twice as much for the same part to get SKF.


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Old 08-24-2014, 11:41 AM   #10
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In case anyone is curious. I installed the part as I need the car and had no choice.. It's working very well, all the nasty front end noise is gone! I guess only time will tell how well this holds up. I also e-mailed Turner Motorsports to see what they think, they will probably confirm all parts are like this.
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Old 08-24-2014, 12:09 PM   #11
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I just installed Timkin bearings this weekend. Mine were completely sealed and you couldn't see the actual balls like that. Sorry I didn't take a pic before installing

Just noticed that is a pic of the outside. Here is a pic of mine installed.

51 bucks from Autozone

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Old 08-24-2014, 03:32 PM   #12
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Timken all the way. Installed them on my fronts and they are working great. If I recall correctly the Timkens have *** bearings which is the same as the factory ones I pulled out.
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Old 08-24-2014, 03:55 PM   #13
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Yes the timkens are just repackaged F.A.G. or Koyo. I have a thread about it.


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Old 08-24-2014, 04:06 PM   #14
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The bearings seals not only keep the dirt out but also keep the grease in. Without it the grease will just scatter all around that empty space behind the press-in hub cap.

Let us know how Turner responds. I wouldn't be surprised if that was a manufacturing and/or quality control issue.

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Old 08-24-2014, 06:27 PM   #15
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Quote:
Originally Posted by BMWboi View Post
Can you elaborate? What if dirt and water get into where those exposed ball bearings are?



Though a person on this page seems to agree:



“Yes when you open the box it appears that there's a bearing seal missing, but it's not the only bearing in the assembly and it gets closed off to the elements via the $6 dust cap that you should also be replacing. It's actually a superior bearing design to that of the o.e. *** unit that had failed, so why it looks a little different is a matter of course."



http://www.fcpeuro.com/products/bmw-...ub-31221139345


A sealed bearing is sealed. You can't add grease and water can't penetrate the seals.


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Old 09-03-2014, 11:11 AM   #16
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Did Turner respond?
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