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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 01-27-2013, 05:18 PM
firehawk17 firehawk17 is offline
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rear hub-inner race

simple quick question about replacing the rear hub...i got the write ups on the procedures and everything im ok with that.... im stuck on the inner race part..not on how to remove it but I wanna know is there a new inner race already installed in the new bearing or is that a separate piece that needs to be bought? thanks in advance
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  #2  
Old 01-27-2013, 06:49 PM
pleiades pleiades is offline
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Quote:
Originally Posted by firehawk17 View Post
simple quick question about replacing the rear hub...i got the write ups on the procedures and everything im ok with that.... im stuck on the inner race part..not on how to remove it but I wanna know is there a new inner race already installed in the new bearing or is that a separate piece that needs to be bought? thanks in advance
Bearings have an inner and outer race between which the balls are sandwiched. The inner is the steel jacket forming the bearing's inner bore. Because it's typically press-fit onto something (the flange) it gets mangled and "peels" off with the hub flange when you remove the bearing from the flange with a puller or splitter or other methods. It's not a "part" per se, more like metal scrap that's in the way and has to be removed before you can install a new bearing on the flange.
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  #3  
Old 01-29-2013, 11:42 AM
firehawk17 firehawk17 is offline
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ok cool.. i didn't wanna be stuck at that junction...thanks a lot for your response..
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  #4  
Old 01-29-2013, 12:38 PM
cn90 cn90 is online now
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I explained the whole thing in the REAR bearing DIY:
http://www.bimmerfest.com/forums/sho...d.php?t=566786

Take your time to go through the 1st photo.
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  #5  
Old 01-29-2013, 01:12 PM
firehawk17 firehawk17 is offline
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Originally Posted by cn90 View Post
I explained the whole thing in the REAR bearing DIY:
http://www.bimmerfest.com/forums/sho...d.php?t=566786

Take your time to go through the 1st photo.

yes your DIY is what i've been reading and looking over many many times..lol im sure i'll look it over again before i actually do it.. but i just wanted to be sure on the inner race part.. but seems all is clear now guess its more studying before the final..
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  #6  
Old 01-29-2013, 04:08 PM
cn90 cn90 is online now
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Look at the drawing carefully as if you are an engineer, then it will be clear to you that the hub is mated to the INNER race, which consists of 2 separate parts (1a and 1b) in the photo.
The "1b" part comes out with the hub. This "1b" part needs to be removed.

When you get the new bearing, look at it, the only thing that prevents the Inner race from falling out is the seal! The inner lip of the seal hugs around the Inner Race, preventing it from falling off.

Once installed, the force of the Axle Nut will clamp the hub against the Inner Race then against the very edge of the half-shaft. It is like a sandwich.

I will give you a multiple-choice exam later to make sure you know the stuff lol.

PM me your cell number and time/date you plan to do it. This way if you run into problems, you can call me for online help.

Last edited by cn90; 01-29-2013 at 04:10 PM.
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  #7  
Old 01-29-2013, 07:36 PM
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Topaz540i Topaz540i is offline
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Here is my epic journey of changing e rear wheel bearings.

http://forums.bimmerforums.com/forum....php?t=1835577

Fronts took an hour, rear took a whole day each they were so stuck.
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