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Surface roughness

I would like to know the method of checking the surface roughness on the spherical rubber material of 10 mm diameter.

THAMBIDORAI V
air brakes manufacturer - CHENNAI, TAMIL NADU, INDIA
2003

Profilometers

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10 mm is kind of small, but you can probably get a reading from a profilometer if you fix the meter point and rotate the ball under it.

AF Kenton
retired business owner - Hatboro, Pennsylvania
2003

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