Why are wheel bearings checked during the inspection?

Wheel bearings are critical components that allow the wheels of a vehicle to rotate with minimal friction. During an inspection, they are checked primarily to ensure they are not worn out and functioning correctly. Worn or damaged wheel bearings can lead to excessive play or noise in the wheel assembly, which can significantly compromise vehicle safety. If bearings are not functioning properly, they can cause uneven tire wear and may eventually lead to wheel separation while driving, posing a significant risk to the vehicle's occupants and others on the road.

While proper greasing and temperature measurements are important aspects of bearing maintenance, the primary reason for checking wheel bearings during an inspection is to assess their overall condition and functionality. Ensuring they meet manufacturer standards is also relevant but is part of the broader objective of confirming that the bearings are not worn out and are working as intended.