Timken bearings

[SuperBuickGuy]

It appears they are both going bad... I bought them in August, put them on in September... maybe 4000 miles.

 

[Ghostbuster]

So Acdelco oe or bust?

 

[Best4x4]

My OEM's are Timken..

 

[Zach]

Timken makes the bearings for most GM vehicles.

 

[rsc]

Timken makes good bearings.

 

[Mr_Rich]

This article was posted on a mailing list I still subscribe to. Not good news for Timken bearings.

http://www.nytimes.com/2014/12/07/business/timken-bows-to-investors-and-splits-in-two.html?_r=0

 

[SuperBuickGuy]

there it is.... of course, the relational group saw their stock killed too - serves them right.

 

[4speedfunk]

I just did a re-gear on a 09 H3T. It was all stock, never been touched. The factory bearings were "Koyo". I ordered a rebuild kit (mostly for the shims), touted as being "Timken" equipped. Guess what? Koyo. Long story short...Koyo is now the go-to bearings for both AAM-7 and Corp 8.6 10b axles. Koyo bearings are made in the USA (it just sounds Chinky). Quality? Hard to say but, it doesn't matter since thats the only brand you can get your hands on.

They're round.
They're shiny.
They're hard.
They fit.

I guess thats what it comes down to.

 

[SuperBuickGuy]

I never took the hub apart, so it's only rumor they're round and shiney... Timken is warrantying them, I wish I could change to AC delco (or whatever they call themselves in China) - the prior ones lasted 114,000 miles.

 

[08H3]

The Delcos are Timkens...at least mine were in summer '13 when I replaced one. Did you properly torque the axle nut? Incorrect preload can destroy a bearing, but I'm surprised in only 4,000 miles.

 

[Mr_Rich]

The Delcos are Timkens...at least mine were in summer '13 when I replaced one. Did you properly torque the axle nut? Incorrect preload can destroy a bearing, but I'm surprised in only 4,000 miles.

Those were my thoughts when I first read the above thread. That axle nut requires something like 125 to 150 ft/ lbs of torque; at least the one on my K1500 does. I haven't had to replace my H3T hubs yet but I have replaced the hubs on my K1500 @ 150K miles ten years ago and it now has 263K miles. I think they should go a long time as long as they're installed correctly.

 

[CaseyS]

What is the correct axle but torque. I need to check mine. I didn't realize that nut torque preloaded the bearings.

 

[Mr_Rich]

What is the correct axle nut (corrected for you...) torque. I need to check mine. I didn't realize that nut torque preloaded the bearings.

173 ft/ lbs. That is F'in' a'lot. I checked my manual. The hub bolts to the knuckle are 133 ft/ lbs. You'd max out a beam-type torque wrench with those specs and still need more.

 

[SuperBuickGuy]

replaced... one was pretty crunchy - I truly hope this isn't a harbinger of things to come, I have always thought Timken was one of the good guys.

and it's 191 lbs torque according to the GM manual.

 

[Mr_Rich]

It was 173 ft/lbs in my '08 H3 manual. Kind of an odd number, but that's what my manual says. And for added measure I checked the torque value on the axle nut for my '89 K1500; 173 ft/lbs as well according to my GM manual.

 

[woodwardsh3]

just bought timkens from 1aauto.com and they were made in good old USA and thats what the factory had on the h3 and 125000 miles