I won't argue the fact that the above situation is prevalent. I was
just speaking to the lock washer application, not whether the engineer
that designed it knew what he was doing. Actually, with the proper
torque for that fastener size and that application there is no need
for a lock washer at all. In your example the proper torque was
probably applied and the lock washer was just going along for the
LOL. Trust me, I'm sure that JD had the same caliber of engineers as
we did at Cat. Some of the things I've seen designed would scare you
to death. In the last 15 or so years we hired many contract engineers
that literally didn't know the difference between a nut and a bolt.
I'm not exaggerating! That's the truth. These same engineers also
didn't speak English very well either. You can draw your own
conclusions about that.
Cat quit using lock washers before I hired in in the mid 70's. Prior
to that the lock washer of choice was the "square cone" lock washer.
Extensive testing proved that with the proper torque for the
application that lock washers were not needed.
On Wed, 25 Nov 2009 17:54:53 -0600, Gordon Shumway
If they learned English later in life that would account for that. It
would also account for not knowing the difference between a nut and
bolt. I hope you hired one guy to explain what the others were doing.
The problem with that is that no one has told me what the proper
torque is and I don't have a machine that will propertly torque
things. I don't think there even are torque wrenches in the size I
would need most of the time. I'm not in the same shoes as a
manufacturer who makes the same thing over and over again, and I need
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