Ensuring precision is paramount for bevel gears as it directly influences their performance. The angle deviation within one revolution of the bevel gear must remain within a specified range to minimize fluctuations in the auxiliary transmission ratio, thereby guaranteeing smooth transmission motion without errors.

During operation, it’s crucial that there are no issues with the contact between tooth surfaces. Maintaining a consistent contact position and area, in line with composite requirements, is essential. This ensures uniform load distribution, preventing concentration of stress on specific tooth surfaces. Such uniform distribution helps prevent premature wear and damage to the gear teeth, thus extending the service life of the bevel gear.