Hummer H2. Manual — part 908

Fig. 16: Brinelling
Courtesy of GENERAL MOTORS CORP.

Surface indentations in the race way caused by the rollers under impact loading or caused from vibration while
the bearing is not rotating. Replace a rough or noisy bearing.

WHEEL BEARING WEAR - FRONT DRIVE AXLE (STRAIGHT)

Straight Roller Bearing Diagnosis

Consider the following factors when diagnosing a bearing condition:

z

Note the general condition of all parts during disassembly and inspection.

z

Classify the failure with the aid of the illustrations.

z

Determine the cause.

z

Make all repairs following recommended procedures.

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

Wear (Minor)

Fig. 17: Minor Wear
Courtesy of GENERAL MOTORS CORP.

Light pattern on races and rollers can be caused by fine abrasives. Clean all of the parts including the housings.
Check the seals. Replace the bearings if rough or noisy. Replace the shaft if damaged.

Wear (Major)

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

Fig. 18: Major Wear
Courtesy of GENERAL MOTORS CORP.

Heavy pattern on races and rollers can be caused by fine abrasives. Clean all of the parts including the housing.
Check the seals. Replace the bearings if rough or noisy. Replace the shaft if damaged.

Brinelling

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

Fig. 19: Brinelling
Courtesy of GENERAL MOTORS CORP.

Surface indentations in the raceway can be caused by roll either under impact loading or vibration while the
bearing is not rotating. Replace the bearing if rough or noisy. Replace the shaft if damaged.

Indentations

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2