If the tooth pattern of a hypoid gear set shows excessive face contact, what should be done?

In the case of excessive face contact in a hypoid gear set, adjusting the position of the pinion can help correct the issue. Moving the pinion out effectively reduces the amount of contact area between the gear teeth. Proper contact patterns are critical for the longevity and performance of the gear set. If the contact is too far towards the face of the gear, it can generate excessive wear and heating, leading to premature failure.

Adjusting the placement of the pinion not only assists in obtaining a more even tooth contact pattern but also impacts the load distribution across the gear teeth, ensuring that they operate efficiently and smoothly. In contrast, the other options don’t address the root cause of the excessive face contact directly in relation to how hypoid gears function and their alignment.