Hummer H2. Manual — part 949
Fig. 5: Etching
Courtesy of GENERAL MOTORS CORP.
Bearing surfaces appear gray or grayish black in color, with related etching away of material usually at roller
spacing. Replace the bearings. Check the seals. Check for proper lubrication.
Bent Cage
2004 Hummer H2
2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2
Fig. 6: Bent Cage
Courtesy of GENERAL MOTORS CORP.
A damaged cage due to improper handling or improper tool usage. Replace the bearing.
Cage Wear
2004 Hummer H2
2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2
Fig. 7: Cage Wear
Courtesy of GENERAL MOTORS CORP.
Wear around the outside diameter of the cage and the roller pockets caused by abrasive material. Wear caused
from inefficient lubrication. Clean the related parts and the housings. Check the seals. Replace the bearings.
Indentations
2004 Hummer H2
2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2
Fig. 8: Damaged Areas
Courtesy of GENERAL MOTORS CORP.
Surface depressions on the race and the rollers caused by hard particles of foreign matter. Clean all the parts and
the housings. Check the seals. Replace rough or noisy bearings.
Frettage
2004 Hummer H2
2004 DRIVELINE/AXLE Front Drive Axle - Hummer H2
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