Geometrical Tolerances – Specifying Geometrical Tolerances – Toleranced Features – Surface Texture – Surface Texture Parameters – Surface Texture Parameters – Tolerances On Lengths, Diameters, Angles – Dimensions And Tolerances – The Quality Function Deployment – Functional Dimensioning – Dimension Chains – The Isotolerance System – Introduction – Field Of Application – Terms And Definitions – Tolerances And Deviations – Preferred Numbers – Standard Tolerance Grades It To It – Formula For Standard Tolerances In Grades It To It – Nomenclature – References – Springs – Introduction – The Design Situation – Helical Springs – Formulas For Helical Springs – Stress Curvature Correction Factor – Material Properties – Relaxation – Types Of Load – Dynamic Loading – Optimization – Compression Springs – Growing Mean Diameter Of Helix – Natural Frequency – Buckling Of Spring – Statically Loaded Coldformed Compression Spring – Statically Loaded Hotformed Compression Spring – Dynamically Loaded Coldformed Compression Spring – Dynamically Loaded Hotformed Compression Spring – Extension Springs .