Final Drive Surgery with Pics

Are ya having a problem with your rig? We'll try to help. Share your tech tips and experiences here. Dr. Billy Glaser, author of the "Unofficial 750 Ural Service Manual" site myural.com, is moderating this section.
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motoleo
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Re: Final Drive Surgery with Pics

Post by motoleo » Sun Sep 15, 2013 9:03 pm

BinDerSmokDat wrote:
Coluralado wrote:There isn't a local bearing supplier with that bearing in stock?
I called all over, NAPA was the best bet; they had it in the warehouse, said they could get it 1st thing Monday. :(
All the bearing suppliers near here were closed on Saturday. :(

Phila. Ball and Roller will have it, I'm going to swing by there 1st thing Monday morning.
So once again I'll be wrenching on the bike right before another Jersey Devil Hunt. :evil:
I need to do the alignment as well, but of course I can't do that without the bike together. :roll:
You might want to call Phila. Ball and Roller first thing in the morning.

I needed a seal and the Phila. Ball and Roller store did not have it but their Reading store did and and came in the next day. So if Phila Roller doesn't have it in stock you can call NAPA back and get the bearing from them for Monday night.
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Albuquralque
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Re: Final Drive Surgery with Pics

Post by Albuquralque » Sun Sep 15, 2013 9:06 pm

Here are the two part numbers out of the 2007 Ural parts catalog:

14 3056204 Bearing 3056204 GOST 4252-75 May use new bearing below
14 SKF 3204 A-2rs1/c3 Bearing New bearing is allowed
Last edited by Albuquralque on Sun Sep 15, 2013 9:14 pm, edited 1 time in total.
"Put a little gravel in your travel"


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Albuquralque
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Re: Final Drive Surgery with Pics

Post by Albuquralque » Sun Sep 15, 2013 9:13 pm

Interesting. The bearing part numbers are correct in the 2007 parts manual...but the later parts manuals are wrong....as you stated BDSD!
"Put a little gravel in your travel"


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Re: Final Drive Surgery with Pics

Post by Albuquralque » Sun Sep 15, 2013 9:14 pm

Here is the newer parts manual.....Item 14 SKF 3304A/s3 Double raw ball bearing 1
"Put a little gravel in your travel"


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BinDerSmokDat
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Re: Final Drive Surgery with Pics

Post by BinDerSmokDat » Mon Sep 16, 2013 7:48 am

Coluralado wrote:Interesting. The bearing part numbers are correct in the 2007 parts manual...but the later parts manuals are wrong....as you stated BDSD!
I'm rarely wrong. ;)

The worst part is I looked at both bearings the 3304 and 3204 and compared them when I removed them, noting they were different.
But when I ordered the part I was at work and used the new parts manual to order the bearing.
So I was sent what I ordered...I just ordered the wrong item, due to the parts manual.

New rule, always, always note the part number ON THE PART.

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Re: Final Drive Surgery with Pics

Post by Navy Chief » Mon Sep 16, 2013 8:00 am

Sounds like a good rule, hope you do not run into any more issues with re-assembly...
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BinDerSmokDat
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Re: Final Drive Surgery with Pics

Post by BinDerSmokDat » Mon Sep 16, 2013 8:51 am

Navy Chief wrote:Sounds like a good rule, hope you do not run into any more issues with re-assembly...
Thanks, now you jinxed me... :lol:
Seriously though, I should be good.
Everything came apart relatively smoothly.
I have good pics, I have Billy G's site and most of all, I have you guys.

I called Phila. Ball and Roller this morning, they have what I need.
I'll be picking it up shortly.

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Albuquralque
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Re: Final Drive Surgery with Pics

Post by Albuquralque » Mon Sep 16, 2013 10:13 am

Looking forward to the reassembly....:lurker:
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URAL CT
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Re: Final Drive Surgery with Pics

Post by URAL CT » Mon Sep 16, 2013 11:20 am

I too will be replacing the ring/pinion gears on my 07. I've the 3204 bearing C3. So, now I need to order the needle bearing. What is the part number for the needle bearing at the tail end of the pinion gear? Thanks for the info.
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Re: Final Drive Surgery with Pics

Post by Albuquralque » Mon Sep 16, 2013 11:36 am

URAL CT wrote:I too will be replacing the ring/pinion gears on my 07. I've the 3204 bearing C3. So, now I need to order the needle bearing. What is the part number for the needle bearing at the tail end of the pinion gear? Thanks for the info.
CT

This is what the 2010 parts manual calls for: Item 22 72-053-2 Needle bearing 1

I can only assume that the roller bearings come with the race, because the parts breakdown only shows the race.
"Put a little gravel in your travel"


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Re: Final Drive Surgery with Pics

Post by dneprlover » Mon Sep 16, 2013 11:46 am

URAL CT wrote:I too will be replacing the ring/pinion gears on my 07. I've the 3204 bearing C3. So, now I need to order the needle bearing. What is the part number for the needle bearing at the tail end of the pinion gear? Thanks for the info.
CT
Is c3 specification for the bike? I was always told not to use them on bikes because that spec has sloppy tolerances due to the bearing being used in high speed, high heat situations such as electric motors and fans etc. My understanding is that standard bearings are better for most applications on motorcycles.

Anyone know any different?
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Re: Final Drive Surgery with Pics

Post by BinDerSmokDat » Mon Sep 16, 2013 11:55 am

Coluralado wrote:I can only assume that the roller bearings come with the race, because the parts breakdown only shows the race.
Yep, it does.
The bigger question is, why does the replacement I was sent and the one on Billy G's page have 28 needles and the original that was on the bike have 29?

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Re: Final Drive Surgery with Pics

Post by berger » Mon Sep 16, 2013 12:07 pm

Coluralado wrote:
URAL CT wrote:I too will be replacing the ring/pinion gears on my 07. I've the 3204 bearing C3. So, now I need to order the needle bearing. What is the part number for the needle bearing at the tail end of the pinion gear? Thanks for the info.
CT

This is what the 2010 parts manual calls for: Item 22 72-053-2 Needle bearing 1

I can only assume that the roller bearings come with the race, because the parts breakdown only shows the race.
07 Catalogue different I think. Make sure you have the right one....

22 72052-2 Double rawball bearing

24 72052-1 Needle bearing

2007 Parts Catalogue
fd_parts07.png
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Re: Final Drive Surgery with Pics

Post by berger » Mon Sep 16, 2013 12:09 pm

dneprlover wrote: Is c3 specification for the bike? I was always told not to use them on bikes because that spec has sloppy tolerances due to the bearing being used in high speed, high heat situations such as electric motors and fans etc. My understanding is that standard bearings are better for most applications on motorcycles.

Anyone know any different?
Right from the 2007 catalogue....

See parts breakdown above.

14 SKF 3204 A-2rs1/c3 Bearing New bearing is allowed
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Re: Final Drive Surgery with Pics

Post by BinDerSmokDat » Mon Sep 16, 2013 12:15 pm

dneprlover wrote:Is c3 specification for the bike? I was always told not to use them on bikes because that spec has sloppy tolerances due to the bearing being used in high speed, high heat situations such as electric motors and fans etc. My understanding is that standard bearings are better for most applications on motorcycles.

Anyone know any different?
According to the bearing supplier, the fig bearing specified in the new parts manual and the MRC bearing I sourced to replace it are both "CN" or "normal" bearing tolerances which fall between C2 and C3.
The replacement MRC and the 3304 I picked up are both steel cage versus polymer cage in the stock part, as well as the 3304 I ordered in error from a Ural dealer.

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