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  1. Chapin Paullin

    Tolerance of + and - versus ±

    Engineers, I have a question regarding tolerancing that I see all the time. On prints I will often see dimensions toleranced unevenly. Why do some engineers give a base line dimension, let’s say 14.125 Inner Diameter of a print. The tolerance will read + 0.025 and – 0.005 (total of .030...
  2. Chapin Paullin

    Coefficient of Friction for Stainless Steel on Stainless Steel from -40°C to 700°C for Automotive

    Hello, I am looking for either data or companies that can provide me with Coefficient of Friction for Stainless Steel 316 mating with ANY other type of Stainless Steel. The working temperature is a range of -40°C to 700°C. We are trying to see if we can fit a COF of 0.2 - 0.4. This is a Dry...

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