Hummer H2. Manual — part 951

Fig. 13: Misalignment
Courtesy of GENERAL MOTORS CORP.

A misaligned outer race due to a foreign object. Clean the related parts. Replace the bearing. Ensure the races
are properly sealed.

Cracked Inner Race

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

Fig. 14: Cracked Inner Race
Courtesy of GENERAL MOTORS CORP.

Cracked race due to improper fit, cocking, or poor bearing seats. Replace the bearing. Correct bearing seats.

Fatigue Spalling

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

Fig. 15: Fatigue Spalling
Courtesy of GENERAL MOTORS CORP.

Flaked surface metal that results from fatigue. Replace the bearing. Clean all related parts.

Brinelling

2004 Hummer H2

2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2

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