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I am want to know how gear train losses (friction) vary with RPM. I suspect that losses increase in a non-linear manner.
Suppose that I had two spur gears with a 5:1 reduction ratio, and I increase the speed from 1000 RPM to 5000 RPM, how would the plot of friction losses...
Hi-
I am looking for Class 8 truck sales by year. The data that I have only goes back to 1996.
Does anyone know where to get sales data for earlier years?
Or maybe from truck registration information?
Hi-
ASTM standard E 659-78 gives a test method for autoignition temperature of liquid chemicals and says that it can be used for some solids.
Is there a similar standard for gases ? Or is the standard assumed to apply for gases as well?
I did find a reference to a...
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On Materials Safety Data Sheets (MSDS), a value for the autoignition temperature is often listed. I found this ASTM standard for determining the autoignition temperature if the material is a solid or liquid:
ASTM G72 - 01 Standard Test Method for Autogenous Ignition Temperature...
