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Post by Rick Barbee on Dec 14, 2023 11:36:23 GMT -6
Industrial grade nylon belting on the left. High quality Cordovan leather on the right.
Which is slickest?
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Post by Rick Barbee on Dec 15, 2023 10:20:35 GMT -6
Here is a side by side "dynamic" friction test.
FYI - The magnets used in this test are not polished. They are actually rough with tool marks on both sides. :-)
In order to have a level playing field I elevated the ramp to just above the slip point of the cordovan, and the travel distance is exactly 8 inches.
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Post by Rick Barbee on Dec 15, 2023 11:00:21 GMT -6
One other thing to add where the surface of the weight is concerned.
The arrow on the top of the weight was to show rotation, which is created by friction.
If you will notice, the nylon barely had any rotation, but the cordovan had near 1/4 full revolution.
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Post by Rick Barbee on Dec 16, 2023 15:40:35 GMT -6
Mechanical fingers to use with a caliper release for tab testing.
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Post by jmartin on Dec 18, 2023 13:57:20 GMT -6
Given your application, I'd hate to have to live on the difference.
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