Automotive bearings - Type of bearings - and what they do - T/F?

When inspecting and servicing front wheel bearings on front wheel drive cars:





A. Some one-piece front wheel bearing hubs are bolted to the front strut.





B. In a one-piece front wheel bearing hub, the outer end of the drive axle is splined to the outer bearing race.





C. When the steering knuckle contains two tapered roller bearings, the torque on the drive axle nut does not affect bearing endplay.


D. Some front wheel bearings mounted in the steering knuckle contain two tapered roller bearings with a split inner race.














Question 2


A customer complains of a "whining noise" in the back of here rear-wheel-drive car when driving between 30 and 40 miles per hour.


True or False


A. - A good way to diagnose this problem is on a hoist with a stethoscope.


B. A good way to diagnose this problem is on the road with a microphone (commonly called "chassis ears").





Question 3 1 points Save


When inspecting and servicing rear wheel (axle) bearings on rear-wheel-drive cars:


A. On some rear wheel bearings, a threaded adapter ring retains the bearings on the axle shaft.


B. Roller-type rear-axle bearings may be lubricated from the oil supply in the differential.











Question 4


When two separate tapered roller bearings are located in a front steering knuckle of a front-wheel-drive car, the wheel bearing endplay adjustment is provided by:


A. The bearing race position.


B. Wheel nut torque


C. Hub nut torque


D. Wheel hub position











Question 5


A front-wheel-drive vehicle has two tapered roller bearings in each rear wheel hub. When adjusting these wheel bearings:


A. The adjusting nut should be tightened to 17 to 25 ft-lb (23-24 Nm), backed off 1/2 turn, and then tightened to 10 to 15 in-lb (1.0-1.7 Nm).


B. The adjusting nut should be tightened to 40 ft-lb (54 Nm), backed off 1 turn, and then tightened to 10 ft-lb (13.5 Nm).


C. The adjusting nut shoudl be tightened to 50 ft-lb (67.5 Nm), backed off 3/4 turn, and then tightened to 10 to 15 in-lb.


D. The wheel and hub should not be rotated while adjusting the wheel bearings.





Question 6


A tapered roller bearing has: -


A. Rollers that have the same diameter at both ends.


B. Excellent ability to carry radial, thrust, and angular loads.


C. Horizontal inner surfaces of the inner and outer races.


D. A separator that allows the rollers to lightly contact each other.





Question 7


When cleaning and inspecting wheel bearings:





A. Sealed bearings should be washed in solvent.





B. High-pressure air may be used to spin the bearings.


C. A bent bearing cage may be caused by improper handling or tool use (during removal or installation).


D. Bearing overload may cause bearing cage wear.











Question 8


While discussing defective bearings:


True or False


A. Brinelling appears as indentations across the bearing races.


B. Brinelling occurs while the bearing is rotating.|||1-A


2-B


3-B


4-C


5-B


6-D


7-C


8-TRUE|||Are we studying for an ASE certification test?