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SM Weekend of Failure (wheel hubs)

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Old Nov 22, 2016 | 03:37 PM
  #101  
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Lol, they're perfectly acceptable ball bearings im sure. Being that they are highly polished steel spheres, I don't think it would be a stretch (its fuking obvious) that those are reflections.
Old Nov 22, 2016 | 03:38 PM
  #102  
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Originally Posted by phocup
I wasn't until I saw SADfab BALL SACK. Where's my safety pin ..



So its probably reflection / ect but I'm seeing what looks to be a bunch of little weld spots on each ball ..
As for buying these off ebay .. they're cheap enough to try but what's the chances that' they're as good as / better than OEM ? Maybe there's obvious answers in the listing, but I'm a noob without $150 of tools to QC.
Yea, that's just a reflection. These things tend to happen when you have so many shiny ***** crammed together...
Old Nov 22, 2016 | 03:39 PM
  #103  
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Hah, it does say "Deep Groove" so I thought perhaps they're not normal perfectly spherical bearings. As I said, noob to this stuff.
Old Nov 22, 2016 | 04:45 PM
  #104  
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Originally Posted by phocup
Have you been able to go back out with the replacement hub ? Curious as to how that held up.
No that was a few years ago, and the engine was down on power and pissing oil everywhere so that car got parted after it ate the 3rd engine.
Old Nov 26, 2016 | 01:12 AM
  #105  
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New ***** came today. Bought from the seller that Shuiend linked. The exact ones I bought are these, unfortunately either stock are not 13/32 or the ones I was sent were not.

I knew it right when I popped the first new bearing into the plastic retainer. It fell out whereas the old bearing remained in place. Will head to Harbor Freight tomorrow to get some calipers so I can determine the size I was sent. Hopefully can return.

Here's a pic to show the difference. 10 OEM ***** on top. 10 eBay 13/32 ***** on the bottom.




Night wasn't a complete bust though, the repacked hub with CV2 was pretty smooth. Can't wait to test it out in the car tomorrow.
Old Nov 26, 2016 | 01:35 PM
  #106  
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Originally Posted by phocup
New ***** came today. Bought from the seller that Shuiend linked. The exact ones I bought are these, unfortunately either stock are not 13/32 or the ones I was sent were not.

I knew it right when I popped the first new bearing into the plastic retainer. It fell out whereas the old bearing remained in place. Will head to Harbor Freight tomorrow to get some calipers so I can determine the size I was sent. Hopefully can return.

Here's a pic to show the difference. 10 OEM ***** on top. 10 eBay 13/32 ***** on the bottom.




Night wasn't a complete bust though, the repacked hub with CV2 was pretty smooth. Can't wait to test it out in the car tomorrow.

I will say I bought the ***** completely based on some measurements I saw on here. It is very possible that I bought the wrong size originally. I have yet to repack bearings so I have yet to actually measure them myself.
Old Nov 26, 2016 | 02:19 PM
  #107  
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Im gonna go measure a ball for yall
Old Nov 26, 2016 | 04:10 PM
  #108  
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This mic reads about 3-4 tenths big. So pretty much dead on 13/32".




Taken from the inside race of a timken hub.
Old Nov 26, 2016 | 04:26 PM
  #109  
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The assumption here is of course that all hubs by all manufacturers all use the same bearings
Old Nov 26, 2016 | 05:07 PM
  #110  
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Originally Posted by shuiend
I will say I bought the ***** completely based on some measurements I saw on here. It is very possible that I bought the wrong size.
It happens, I did the same thing without due diligence and double checking ..

Thanks for measuring that off Sean. I guess your Timken is 13/32. Now that I think about it, there's no guarantee that even different year OEM have same bearing size. Definitely measure your own before buying if going this route. Unfortunately this will add to downtime in many cases as most won't have spare hubs.
Old Nov 26, 2016 | 05:55 PM
  #111  
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Originally Posted by EO2K
The assumption here is of course that all hubs by all manufacturers all use the same bearings

That is correct, Gordon.
Old Nov 29, 2016 | 01:16 PM
  #112  
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Some hubs don't even use the same number of *****. Some of the earlier cars used 11 or 12 ***** per race. They are apparently gold to SM players.
Old Nov 29, 2016 | 02:39 PM
  #113  
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Originally Posted by hornetball
So far so good on my Mazdaspeed HDs. 1 track day at MSR-C (1.7CCW) and 2 at Hallett (1 CW and 1 CCW).
Lost a Mazdaspeed HD. It lasted a total of 11 track days (about 20 hours). So, no advantage there that I can discern. I slapped on a repacked China hub with OK machining.
Old Nov 29, 2016 | 02:41 PM
  #114  
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Originally Posted by hornetball
Lost a Mazdaspeed HD. It lasted a total of 11 track days (about 20 hours). So, no advantage there that I can discern. I slapped on a repacked China hub with OK machining.
Given how long these hubs last I've given up on the idea of repacking. I just going to for the best quality I can within reason and running them until they go (I always keep two spares with me).
Old Nov 29, 2016 | 02:48 PM
  #115  
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Originally Posted by Lincoln Logs
Given how long these hubs last I've given up on the idea of repacking. I just going to for the best quality I can within reason and running them until they go (I always keep two spares with me).
If I don't see a significant durability increase out of the one I just slapped on (I don't have high hopes), I will do exactly the same. I'm really fast at swapping hubs these days.
Old Nov 29, 2016 | 02:50 PM
  #116  
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Originally Posted by hornetball
If I don't see a significant durability increase out of the one I just slapped on (I don't have high hopes), I will do exactly the same. I'm really fast at swapping hubs these days.
Yup, I can swap a hub in much less time than the time it would take me to repack...also less messy too.
Old Jan 16, 2017 | 06:37 PM
  #117  
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I made a tool to re-pack my front hubs , it rakes about 3 minutes to pump some fresh grease between track days, is anyone interested in one? My cost is $75 a picece when having 10 made.
i will make a batch if there are takers.

Old Jan 16, 2017 | 06:40 PM
  #118  
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How does it work? Definitely interested.
Old Jan 16, 2017 | 06:54 PM
  #119  
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You isert the tool from the wheel side and it provides a seal between the front of the hub and the back bearing inner bore forcing the grease through the ***** and races, all the old grease comes out the upright side, i was not about to disassemble the bearings every time i re pack them. Let me see if this link works
Old Jan 16, 2017 | 09:26 PM
  #120  
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Kinda like this?
Attached Thumbnails SM Weekend of Failure (wheel hubs)-rep-bearingbuddy.jpg  



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