Chap. 5.2 The fundamental law of gearing 1. The Fundamental Law of Gearing 2. The involute tooth form 3. Pressure angle 4. Changing center Distance 5. BacklashChap.5.2 The fundamental law of gearing 1. The Fundamental Law of Gearing 2. The Involute Tooth Form 3. Pressure Angle 4. Changing Center Distance 5. Backlash