Question

The point of contact of two pitch circles of mating gears is called

Answer 1

Fillet : The small radius that connects the profile of a tooth to the root circle. Pinion: The smaller of any pair of mating gears. The larger of the pair is called simply the gear. ... Pressure angle : The angle between the common normal at the point of tooth contact and the common tangent to the pitch circles.

Answer 2

Answer:

The point of contact of two pitch circles of mating gears is called pitch point

Explanation:

• The pitch circle on a gear is the hypothetical circle around which it may be expected to roll without interfering with the pitch circle of another gear. The pitch point is created when two pitch circles come into contact.
• Keep an eye out for the two dotted circles that are rolling around a fixed point ( which is called the pitch point).

Pitch circle's significance:

• The pitch circle radius is used to calculate the route of contact, arc of contact, and contact ratio.
• Pitch circle radius is necessary for determining the addendum values of the gear and pinion as well as the minimum number of teeth to prevent interference.