Analyze the following situations and determine whether the federal court has jurisdiction under diversity of citizenship. a. Brady and Jeffers, both citizens of North Dakota, wish to sue as a….
What will the pressure angle be if the center distance of the spur gearset in Problem 12-39 is increased by 6%?
1. Figure P12-2 shows an involute of a circle that starts at point A (0, rb) and continues to point P (x, y). The angle θ is known as the roll angle and φ is the involute pressure angle. Derive expressions for the x and y coordinates of P in terms of the base circle radius rb and the involute pressure angle only. Plot y vs. x over the range 0° < φ=””>< 40°=”” for=””>rb = 2 in.
2. A 39-tooth spur gear is in mesh with an 18-tooth pinion. The pd = 8 and φ = 25°. Find the contact ratio
3. A 79-tooth spur gear is in mesh with a 20-tooth pinion. The pd = 8 and φ = 20°. Find the contact ratio.
4. What will the pressure angle be if the center distance of the spur gearset in Problem 12-39 is increased by 6%?