Race Prep Miata race-only chat.
Sponsored by:
Sponsored by:

SM Weekend of Failure (wheel hubs)

 
Old 11-22-2016, 03:37 PM
  #101  
SadFab CEO
iTrader: (3)
 
hi_im_sean's Avatar
 
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 4,546
Total Cats: 1,087
Default

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.
hi_im_sean is offline  
Old 11-22-2016, 03:38 PM
  #102  
Junior Member
iTrader: (1)
 
Join Date: Feb 2016
Location: Halifax, NS
Posts: 162
Total Cats: 21
Default

Originally Posted by phocup View Post
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...
MetalMuffins is offline  
Old 11-22-2016, 03:39 PM
  #103  
Junior Member
 
Join Date: Aug 2016
Posts: 304
Total Cats: 2
Default

Hah, it does say "Deep Groove" so I thought perhaps they're not normal perfectly spherical bearings. As I said, noob to this stuff.
phocup is offline  
Old 11-22-2016, 04:45 PM
  #104  
Elite Member
 
Join Date: Oct 2011
Location: OKC, OK
Posts: 3,394
Total Cats: 133
Default

Originally Posted by phocup View Post
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.
z31maniac is offline  
Old 11-26-2016, 01:12 AM
  #105  
Junior Member
 
Join Date: Aug 2016
Posts: 304
Total Cats: 2
Default

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.
phocup is offline  
Old 11-26-2016, 01:35 PM
  #106  
mkturbo.com
iTrader: (24)
 
shuiend's Avatar
 
Join Date: May 2006
Location: Charleston SC
Posts: 14,447
Total Cats: 1,341
Default

Originally Posted by phocup View Post
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.
shuiend is offline  
Old 11-26-2016, 02:19 PM
  #107  
SadFab CEO
iTrader: (3)
 
hi_im_sean's Avatar
 
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 4,546
Total Cats: 1,087
Default

Im gonna go measure a ball for yall
hi_im_sean is offline  
Old 11-26-2016, 04:10 PM
  #108  
SadFab CEO
iTrader: (3)
 
hi_im_sean's Avatar
 
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 4,546
Total Cats: 1,087
Default

This mic reads about 3-4 tenths big. So pretty much dead on 13/32".




Taken from the inside race of a timken hub.
hi_im_sean is offline  
Old 11-26-2016, 04:26 PM
  #109  
Destroyer of Inconel
iTrader: (37)
 
EO2K's Avatar
 
Join Date: Apr 2010
Location: *** BANNED ***
Posts: 9,666
Total Cats: 998
Default

The assumption here is of course that all hubs by all manufacturers all use the same bearings
EO2K is offline  
Old 11-26-2016, 05:07 PM
  #110  
Junior Member
 
Join Date: Aug 2016
Posts: 304
Total Cats: 2
Default

Originally Posted by shuiend View Post
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.
phocup is offline  
Old 11-26-2016, 05:55 PM
  #111  
SadFab CEO
iTrader: (3)
 
hi_im_sean's Avatar
 
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 4,546
Total Cats: 1,087
Default

Originally Posted by EO2K View Post
The assumption here is of course that all hubs by all manufacturers all use the same bearings

That is correct, Gordon.
hi_im_sean is offline  
Old 11-29-2016, 01:16 PM
  #112  
Elite Member
iTrader: (15)
 
Join Date: Jan 2007
Location: Murfreesboro,TN
Posts: 1,632
Total Cats: 107
Default

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.
Midtenn is offline  
Old 11-29-2016, 02:39 PM
  #113  
Elite Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,188
Total Cats: 656
Default

Originally Posted by hornetball View Post
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.
hornetball is offline  
Old 11-29-2016, 02:41 PM
  #114  
Supporting Vendor
iTrader: (1)
 
Join Date: May 2010
Location: San Diego
Posts: 516
Total Cats: 54
Default

Originally Posted by hornetball View Post
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).
__________________
Scooby: Rotrex powered 1992 NA6 - 240WHP/190TQ

Singular Motorsports
Lincoln Logs is offline  
Old 11-29-2016, 02:48 PM
  #115  
Elite Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,188
Total Cats: 656
Default

Originally Posted by Lincoln Logs View Post
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.
hornetball is offline  
Old 11-29-2016, 02:50 PM
  #116  
Supporting Vendor
iTrader: (1)
 
Join Date: May 2010
Location: San Diego
Posts: 516
Total Cats: 54
Default

Originally Posted by hornetball View Post
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.
__________________
Scooby: Rotrex powered 1992 NA6 - 240WHP/190TQ

Singular Motorsports
Lincoln Logs is offline  
Old 01-16-2017, 06:37 PM
  #117  
Senior Member
iTrader: (3)
 
Join Date: Dec 2007
Location: Brownsburg,IN
Posts: 837
Total Cats: 62
Default

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.

HHammerly is offline  
Old 01-16-2017, 06:40 PM
  #118  
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,495
Total Cats: 1,636
Default

How does it work? Definitely interested.
aidandj is offline  
Old 01-16-2017, 06:54 PM
  #119  
Senior Member
iTrader: (3)
 
Join Date: Dec 2007
Location: Brownsburg,IN
Posts: 837
Total Cats: 62
Default

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
HHammerly is offline  
Old 01-16-2017, 09:26 PM
  #120  
Moderator
iTrader: (12)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 19,302
Total Cats: 2,434
Default

Kinda like this?
Attached Thumbnails SM Weekend of Failure (wheel hubs)-rep-bearingbuddy.jpg  
sixshooter is offline  

Thread Tools
Search this Thread
Quick Reply: SM Weekend of Failure (wheel hubs)


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.