RWD AXLE BEARINGS

Chapter 7 Page 164

Classroom Manual Page 300

Lab Manual

CBC AUTOMOTIVE RK

FULL-FLOATING AXLE

Definition - axle bearing is on the outside of the axle housing.

No weight is on the axle shaft. Used on 3/4 ton and larger trucks,

and four wheel drive front axles. If axle breaks wheel will not come

off.

CBC AUTOMOTIVE RK Page 165 C

SEMI-FLOATING AXLES

Definition - axle bearing is inside the axle housing.

Weight of vehicle is on the axle shaft.

If the axle breaks the wheel will come off.

CBC AUTOMOTIVE RK Page 165 C

BEARING STYLES

Three styles of RWD solid axle bearings. Ball Axle Bearing Straight-Roller Axle Bearings Tapered-Roller Axle Bearings

Lubricated from differential or packed with wheel bearing grease at time of installation.

Page 166-167C

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AUTOMOTIVE RK

BALL AXLE BEARINGS

Held in place by metal retainer bolted to the end of the axle housing.

Seal is inside of the axle bearing.

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AUTOMOTIVE RK

Page 166 Figure 7-46

STRAIGHT-ROLLER

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AUTOMOTIVE RK

Held in place by a C-Clip in the differential case.

Seal is on the outside of the bearing.

Bearing is lubed from differential.

TAPERED-ROLLER Held in place by metal retainer

bolted to the end of the axle housing.

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AUTOMOTIVE RK

Two seals one inside of bearing, one outside.

IRS AXLE SHAFTS

Two types of independent suspension: Swing Axle

Single Joint Camber changes with suspension travel.

Independent Rear Suspension Camber does not change with suspension

travel. Two Joints

Axle bearings are similar to FWD.

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AUTOMOTIVE RK

Page 168-169C

MAINTENANCE

Use correct lube type: GL-1, GL-2, GL-3, GL-4, GL-5.

Posi-traction differentials require a Limited-slip additive.

Transaxles may require: Gear oil Motor oil ATF

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AUTOMOTIVE RK

Page 169C