Exam 8: Wheel Bearing and Seal Service

The component in a wheel bearing that maintains the proper spacing between the roller bearings or ball bearings is called a(n) ________.

Which of the following is NOT a common tool used to maintain and repair wheel bearings?

Failure analysis starts with removing the faulty wheel bearing and cleaning it and the _____ thoroughly.

Technician A states that "serviceable"and "sealed bearings" are typical categories of wheel bearings used in vehicles. Technician B states that sealed bearings require periodical maintenance. Who is correct?

Tech A says that over time a grease seal can wear a groove in the sealing surface of the axle or shaft. Tech B says that grease seals need to be replaced every time the bearing is removed. Who is correct?

Tech A says that servicing the wheel bearings is a common part of a brake job if the vehicle has serviceable wheel bearings. Tech B says that if the vehicle uses non-serviceable bearings, the bearings should be checked during a brake job and replaced if they are worn out. Who is correct?

Which of the following components should be mandatorily inspected whenever the wheel bearings are removed and serviced?

Tech A says that wheel bearings need to be replaced as a set: bearing and race. Tech B says that the wheel bearings and races on both sides of the vehicle must be replaced if one side fails. Who is right?

Choose the correct statement describing grease seals:

Tech A says that wheel bearing assemblies include roller bearings. Tech B says that wheel bearing assemblies include ball bearings. Who is correct?

Technician A says that the best approach to determining if a noise is a wheel bearing is to drive the vehicle at the speed at which it occurs and then lightly rock the car side to side using the steering wheel. If the noise changes, it is likely a wheel bearing problem. Technician B says that the best approach to determining if a noise is a wheel bearing or tire is to drive over different road surfaces such as asphalt and concrete. If the noise does not change, it is likely a tire problem. Who is correct?

All of the following statements with respect to sealed and serviceable bearings are true, EXCEPT:

Tech A says that when a race is fully seated, a sharp metallic sound will be produced when installation is complete. Tech B says that to be sure a race is fully seated, the wheel bearing adjusting nut should be tightened to at least 100 ft-lbs of torque, which will finish seating it. Who is right?

If a vehicle uses serviceable bearings, the maximum allowable play is approximately ________.

Technician A says that you should suspect a faulty wheel bearing whenever an unusual howling or rough sound comes from the wheel areas when the vehicle is being driven. Technician B says that you should suspect a faulty wheel bearing whenever an unusual screeching sound comes from the wheel areas when the vehicle is being braked. Who is correct?

Which of the following is a method of diagnosing wheel bearing assemblies?

Tech A says that you should suspect a faulty wheel bearing whenever an unusual howling or rough sound comes from the wheel areas when the vehicle is being driven. Tech B says that you should suspect a faulty wheel bearing whenever an unusual rumbling or whirring sound comes from the wheel areas when the vehicle is being driven. Who is correct?

All of the following are methods of diagnosing wheel bearing assemblies, EXCEPT:

Technician A says that on most front wheels the replaceable sealed bearing is pressed between the hub and the wheel flange and is the more difficult to replace. Technician B says that the unitized wheel hub includes a sealed wheel bearing, a removable wheel hub, and possibly the wheel flange. This type can be unbolted. Who is correct?

At what positions is it best to grab the tire and lift the wheels off the ground to check the wheel bearings for looseness?