[TheForge] "Lug nut" torquing - order of tightening? OT

[David E. Smucker]

Physics is physics -- talk to them, they under stand order of torquing.  (Or 
if you did and they couldn't help -- well nothing ventured nothing gained.) 
I have seen some of their units, it was 10 years ago that the bolt size was 
about 3/8 -- not far from what you are looking at.

Dave
----- Original Message ----- 
From: "Bruce Freeman" <freemab222 at gmail.com>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Friday, April 04, 2008 6:37 PM
Subject: Re: [TheForge] "Lug nut" torquing - order of tightening? OT


> Great idea, but these bolts are much smaller than 1".
>
> On Fri, Apr 4, 2008 at 11:13 AM, David E. Smucker
> <davesmucker at hotmail.com> wrote:
>> Bruce,  Go to the following website,    http://www.superbolt.com/
>>
>>  Then call and talk to their application engineers.  They should be able 
>> to
>> give you real world experience.  I have used their systems for real world
>> critical applications of heavy load applications.  Good Folks.
>>
>>  Dave Smucker
>>  ----- Original Message ----- From: "Bruce Freeman" 
>> <freemab222 at gmail.com>
>>  To: "Sponsored by ABANA" <theforge at mailman.qth.net>
>>  Sent: Friday, April 04, 2008 10:54 AM
>>  Subject: [TheForge] "Lug nut" torquing - order of tightening? OT
>>
>>
>>
>> >
>> >
>> >
>> > This relates to my earlier question of torquing SS bolts, but now I'm
>> > thinking in terms of order.
>> >
>> > The bolts are in two circles, tightening together a stack of disks.
>> > We want pressure uniform.  To complicate matters there are twice as
>> > many bolts in the outer circle than in the inner, namely 36 vs 18.
>> > Number them by the inner bolts:  1, 2, 3, ..., 18 for the inner, 1',
>> > 1", 2', 2", 3', 3", ..., 18', 18" for the outer.
>> >
>> > For one time through, we snugged the bolts around the circles, then
>> > tightened:  1, `10, 1', 10', 1", 10"; then moved on to 2, 11, 2', 11',
>> > 2", 11", etc.
>> >
>> > Another time through we tightened, 1, 1', 1", 10, 10', 10"; then moved
>> > to 2, 2', 2", 11, 11', 11", etc.
>> >
>> > But later I got to thinking that this might not be ideal.  For lug
>> > nuts, you tighten in a star pattern.  I presume something similar
>> > would  be better for this stack as well.  But what offset?  180degrees
>> > then 90 degrees?  or ~60 degrees?
>> >
>> > Any thoughts or wisdom to share?
>> >
>> > -
>> > Bruce
>> > NJ
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>
>
>
> -- 
> Bruce
> NJ
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