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Exam 8: Wheel Bearing and Seal Service

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Question 1

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Two technicians are discussing how to install a replacement tapered front wheel bearing. Tech A says when installing a bearing race you should use a 5 lb hammer and a brass drift. Tech B says that you should use a hydraulic press or a hammer and bearing race installer, carefully drive the race until it is fully seated in the hub. Who is right?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

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Question 2

Multiple Choice

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All of the following can be caused by a loose or worn wheel bearing, EXCEPT:

A) vehicle wander.
B) vehicle engine oil leak.
C) vehicle shimmy.
D) vehicle vibration.

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Question 3

Multiple Choice

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Tapered roller bearings are used typically in what configuration?

Faulty bearings creates an unusual noise which usually can be heard once the vehicle gets up to _____ mph.

Which type of bearing is recommended for a vehicle which is subjected to heavy loads and thrust during turning around the corners?

In case of serviceable wheel bearings, the maximum allowable play is:

Tech A 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 changes, it is likely a wheel bearing problem. Tech 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?

Tech A says when installing a bearing race you should use a 3-lb hammer and a brass drift. Tech B says that when installing a bearing race you should use a 3-lb hammer and a 3/8" drive extension. Who is correct?

What term is used to describe the outside component of a wheel bearing that has a smooth, hardened surface for rollers or balls to ride on?

In a 3/4 floating axle design, there is a single bearing assembly (usually a ball or ________ style) between the outside of the axle tube and the hub.

One way to isolate a wheel bearing noise from a transmission noise is to drive the vehicle at the speed at which it is making the noise and then shift into a higher or lower transmission gear while _________.

Tech A says that packing a wheel bearing assembly can be done by hand with proper results. Tech B says that packing a wheel bearing assembly with a bearing packer will get the proper results. Who is correct?

________ can be damaged from excessive loads such as overloading the vehicle, shock loads such as hitting a large pot hole, improper adjustment, or just plain wear over time.

When bearings are used in pairs, the individual tapered roller bearing assemblies are generally referred to as:

Because tapered roller bearing assemblies use tapered components, the wheel bearing assembly must be adjusted to have the proper ________ between the tapered rollers and races when the bearing assemblies are installed.

Which of the following is a component of a typical wheel bearing?

It can be challenge is to distinguish between a wheel bearing noise and a tire noise. The best approach to this problem is to drive over different road surfaces. Tech A states that if the noise changes, it is likely a tire problem. Tech B states that if the noise does not change, it is likely to be a faulty wheel bearing. Who is correct?

_________ refers to the absence of clearance in the bearing and the specified amount of pressure forcing the bearing components together.

Tech A says that the wheel bearing can damage the wheel hub or spindle/axle in a vehicle. Tech B says that bearing failure involves the race spinning in either the machined bore of the wheel hub or on the surface of the spindle/axle. Who is correct?

Which component of a wheel bearing holds the rollers or balls in place?