[AT] Getting water out of a gearbox/now bearing life

[David Rotigel]

I have carried a remote in my truck on the way to shows for years, but always bent down to put my hand on the hub and tire of the truck and trailer each time I stopped for fuel and/or food. I no longer have to get my hands dirty each time I stop! THANKS, Mike!
	Dave

On Jun 5, 2015, at 1:42 PM, rlgoss at twc.com wrote:

> You mean I'm actually supposed to use that remote IR thermometer for something besides exhaust temperature on small engines? Thanks for the reminder, Mike, I'll carry it along while trailering to tractor shows.  It's ready-made for checking tire, bearing, and other temperatures on long trips.
> 
> 
> Larry 
> ---- Mike <meulenms at gmx.com> wrote: 
>> Charlie, you could actually do that yourself with an inexpensive IR 
>> thermometer. Now that you have a new one, after a bit of a drive, check 
>> the temp by the zero speed sensor. If the old one is noticeably higher, 
>> time to change it.
>> 
>> Mike M
>> 
>> 
>> On 6/5/2015 12:04 PM, charlie hill wrote:
>>> True enough I guess Steve.  Also the folks at GM have no interest in me
>>> keeping my truck for 20 years and putting 500,000 miles on it.
>>> Statistically, folks like me are way beyond an anomaly.   Still it would be
>>> nice and at 10 times 2 bucks or even 100 times 2 bucks it would be an
>>> interesting gadget to have. It would not have to read the actual bearing
>>> race temperature.  All it would need to do is read the extremes at the
>>> location of the zero speed sensor and report an out of range event that
>>> would reset if it was short term.
>>> 
>>> Charlie
>>> 
>>> -----Original Message-----
>>> From: Stephen Offiler
>>> Sent: Friday, June 05, 2015 9:18 AM
>>> To: Antique tractor email discussion group
>>> Subject: Re: [AT] Getting water out of a gearbox/now bearing life
>>> 
>>> On Fri, Jun 5, 2015 at 7:30 AM, charlie hill <charliehill at embarqmail.com>
>>> wrote:
>>> 
>>>> You know, it just occurred to me regarding what I wrote below,
>>>> That hub assembly already has a zero speed sensor built into
>>>> it.  Surely it would not have been too hard for GM's engineers to
>>>> put a high temperature alarm in there two.  I guess it would have
>>>> cost them a dollar or two.  With the price of a new truck comparable
>>>> to my '06 now being in excess of $50,000 you would think they could
>>>> afford to throw it in though.  Then again maybe the 2015's have that
>>>> feature?
>>>> 
>>>> Charlie
>>>> 
>>>> 
>>> Nobody offers this feature as far as I know, and I'll acknowledge it is a
>>> REALLY interesting idea, but the devil is in the details.
>>> 
>>> The system cost (temperature detection device, its mounting and sealing
>>> within the bearing assembly, plus the wiring, plus the hardware components
>>> and some software to interpret the signal inside a computer somewhere) is
>>> potentially quite a bit greater than the $1-2 you suggest.  Ten times that
>>> figure would not surprise me even a little bit.
>>> 
>>> But I think the real issue is statistics.  Somebody at GM, I can *assure*
>>> you this is a fact, has done a Design Failure Modes and Effects Analysis
>>> (DFMEA) on those bearings as well as every single other piece of the
>>> truck.  They consider the likelihood of failure within a certain mileage or
>>> timeframe (often 150,000 miles)  and they consider the negative effects of
>>> a failure.  They rank every single component and system on the entire truck
>>> and put the vast majority of time and effort into knocking down the most
>>> likely failures with the most severe consequences.  I've worked for a major
>>> automotive supplier in the past, and part of my job was creating and
>>> maintaining DFMEA documents for the components we manufactured, so I know
>>> exactly what I am talking about here.
>>> 
>>> In short, I am certain that those hubs/bearings have been the subject of a
>>> DFMEA and they fell way back behind many other possible failure points and
>>> got lost.  So no money, zero point zero dollars, allocated for your
>>> temperature sensors.
>>> 
>>> SO
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