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Cummins12V98 · 05-23-2016, 06:47 PM

I have had several experts say that the gears look great.

Mr_D · 05-23-2016, 07:00 PM

The one thing I have seen and continue to see is the lack of certification from the oil industry. "Designed to meet" or "Meets modern standards" means nothing as far as actually being tested and passing the certification tests.

chertz · 05-24-2016, 03:13 AM

V3600... I am going to disagree with your assessment.. the marks are 90 degrees to the direction wear marks would present themselves. I can think of no possible way a gear set would slide past each other in the direction of these marks.

1bigmess · 05-24-2016, 10:24 AM

Quote:

Originally Posted by chertz

V3600... I am going to disagree with your assessment.. the marks are 90 degrees to the direction wear marks would present themselves. I can think of no possible way a gear set would slide past each other in the direction of these marks.

Well this is getting a little interesting. What do you think made those marks, or how do you think they got there?

I'm just inquisitive about these things, how things work. Nothing more.

chertz · 05-25-2016, 03:57 AM

1 big mess - I am not a machinist but a quick Google search came up with several videos of "bevel gear cutters" which use a shaped cutter head to cut out the space between teeth.

Perhaps there are some machinists on here that van provide more expertise in this area.

1bigmess · 05-25-2016, 10:10 AM

That led me to videos of hypoid gear cutting that were very interesting.

I went to a machining school for two years. Haven't been able to find any work in machining, but I've been able to find work in manufacturing, so the way these things are made is very interesting to me. We never made gears using anything but wire EDM.