Posted by Datesfat Chicks on July 21, 2009, 9:55 pm
I had a very interesting OCD day yesterday and today ...
Yesterday I lubed and adjusted my chain. In the process, because of my
OCD'ish tendencies, I might have used my clicker torque wrench and "clicked"
the axle nut at 65 ft-lbs maybe 8 or 10 times in total.
And then I got to thinking ... is it possible to damage the axle in any way
by repeatedly torqueing it to 65 ft-lbs? (I get the feeling I click the
wrench about 5 times as often as the average guy, who might do it twice.)
So, I called my local motorcycle dealership and talked to my favorite
mechanic. Here is what he said in response to my questions:
a)In general, it isn't possible to damage the axle by repeated torqueing to
the recommend torque.
b)He has seen axles "fail" occasionally, but they were typically already
damaged and the threads were stripped out while torqueing.
c)All the failures he has seen were threads stripped while torqueing (i.e.
in the service bay). He has never seen an axle fail while the motorcycle
was being ridden.
d)The threads seem to strip before any damage can be done to the middle part
of the axle.
I thought it was all very interesting.
Datesfat
Posted by Scott Hendryx on July 21, 2009, 10:00 pm
Datesfat Chicks wrote:
>> I had a very interesting OCD day yesterday and today ...
>>
>> Yesterday I lubed and adjusted my chain. In the process, because of
>> my OCD'ish tendencies, I might have used my clicker torque wrench
>> and "clicked" the axle nut at 65 ft-lbs maybe 8 or 10 times in total.
>>
>> And then I got to thinking ... is it possible to damage the axle in
>> any way by repeatedly torqueing it to 65 ft-lbs? (I get the feeling
>> I click the wrench about 5 times as often as the average guy, who
>> might do it twice.)
>>
>> So, I called my local motorcycle dealership and talked to my favorite
>> mechanic. Here is what he said in response to my questions:
>>
>> a)In general, it isn't possible to damage the axle by repeated
>> torqueing to the recommend torque.
>>
>> b)He has seen axles "fail" occasionally, but they were typically
>> already damaged and the threads were stripped out while torqueing.
>>
>> c)All the failures he has seen were threads stripped while torqueing
>> (i.e. in the service bay). He has never seen an axle fail while the
>> motorcycle was being ridden.
>>
>> d)The threads seem to strip before any damage can be done to the
>> middle part of the axle.
>>
>> I thought it was all very interesting.
>>
>> Datesfat
Yes, your bike is ruined. Donut ride it again and call me to take it to the
junk yard for you.
--
------MoParMaN------
---Scud Coordinates 32.61204 North 96.92989 West---
--Remove Clothes to Reply!--
A Chicken Crossing The Road, Is Poultry in Motion!
Posted by =?ISO-8859-1?Q?=BF?= on July 21, 2009, 10:21 pm
wrote:
> And then I got to thinking ... is it possible to damage the axle in any way
> by repeatedly torqueing it to 65 ft-lbs?
Don't EE's have to study strength of materials these days?
http://www.engineeringtoolbox.com/torsion-shafts-d_947.html
Combine this information with the modulus of elasticity for steel and
calculate the stress and strain resulting from the applied torque.
Posted by Dean Hoffman on July 30, 2009, 6:22 pm
¿ wrote:
> wrote:
>
>> And then I got to thinking ... is it possible to damage the axle in any way
>> by repeatedly torqueing it to 65 ft-lbs?
>
> Don't EE's have to study strength of materials these days?
>
> http://www.engineeringtoolbox.com/torsion-shafts-d_947.html
>
> Combine this information with the modulus of elasticity for steel and
> calculate the stress and strain resulting from the applied torque.
Yeahbut. What about temperature correction? There might be
different alloys used in the various components.
Posted by Doug Payne on July 22, 2009, 8:32 am
Datesfat Chicks wrote:
> I had a very interesting OCD day yesterday and today ...
>
> Yesterday I lubed and adjusted my chain. In the process, because of my
> OCD'ish tendencies, I might have used my clicker torque wrench and
> "clicked" the axle nut at 65 ft-lbs maybe 8 or 10 times in total.
>
> And then I got to thinking ... is it possible to damage the axle in any
> way by repeatedly torqueing it to 65 ft-lbs? (I get the feeling I click
> the wrench about 5 times as often as the average guy, who might do it
> twice.)
How many times have you had your torque wrench calibrated?
What if it's not accurate?
What if it was calibrated accurately, then drifted during use?
Lube on the threads or dry?
Threadlocker?
XML Sitemap
>>
>> Yesterday I lubed and adjusted my chain. In the process, because of
>> my OCD'ish tendencies, I might have used my clicker torque wrench
>> and "clicked" the axle nut at 65 ft-lbs maybe 8 or 10 times in total.
>>
>> And then I got to thinking ... is it possible to damage the axle in
>> any way by repeatedly torqueing it to 65 ft-lbs? (I get the feeling
>> I click the wrench about 5 times as often as the average guy, who
>> might do it twice.)
>>
>> So, I called my local motorcycle dealership and talked to my favorite
>> mechanic. Here is what he said in response to my questions:
>>
>> a)In general, it isn't possible to damage the axle by repeated
>> torqueing to the recommend torque.
>>
>> b)He has seen axles "fail" occasionally, but they were typically
>> already damaged and the threads were stripped out while torqueing.
>>
>> c)All the failures he has seen were threads stripped while torqueing
>> (i.e. in the service bay). He has never seen an axle fail while the
>> motorcycle was being ridden.
>>
>> d)The threads seem to strip before any damage can be done to the
>> middle part of the axle.
>>
>> I thought it was all very interesting.
>>
>> Datesfat