The tangential pitch circle is necessary in spur gears because it determines the size and location of the gear teeth. This circle also helps to maintain a constant velocity ratio between the gears.
No, spur gears cannot function properly without a tangential pitch circle. Without it, the gears will not have the correct size and location of teeth, resulting in a loss of power transmission and potential damage to the gears.
The tangential pitch circle is calculated by dividing the diameter of the pitch circle (also known as the pitch diameter) by the cosine of the pressure angle. This calculation can be done using various equations and formulas depending on the specific gear design.
The size of the tangential pitch circle is affected by the pitch diameter, pressure angle, and number of teeth on the gear. The pressure angle is especially important as it determines the shape and size of the gear teeth and therefore, the size of the tangential pitch circle.
No, the tangential pitch circle cannot be adjusted after the gears have been manufactured. It is crucial for the gears to have the correct size and location of teeth to function properly, and any adjustments made after production may result in gear failure.