Bearing Check

NOTE: If any of the following conditions exist, install a new bearing.

Inspect the bearing for a bent cage.

Fig 1: Locating Bearing For Bent Cage
Courtesy of FORD MOTOR CO.
Inspect the bearing for a broken collar.

Fig 2: Locating Bearing Collar Broken
Courtesy of FORD MOTOR CO.
Inspect the bearings for galling (metal smears on the roller ends).

Fig 3: Locating Bearings For Galling
Courtesy of FORD MOTOR CO.
Inspect the bearings for brinelling (surface indentation in the race).

Fig 4: Locating Bearings For Brinelling (Surface Indentation In Race)
Courtesy of FORD MOTOR CO.
Inspect the bearing for a cracked inner race.

Fig 5: Locating Bearing For Cracked Inner Race
Courtesy of FORD MOTOR CO.

NOTE: If etching is present, inspect the seals.

Fig 6: Locating Bearing And Race For Etching

Courtesy of FORD MOTOR CO.

Inspect the bearing and race for etching.
Inspect the bearing for heat discoloration (dark blue).

Fig 7: Locating Bearing For Heat Discoloration (Dark Blue)
Courtesy of FORD MOTOR CO.
Inspect the bearing race for fatigue (matte gray appearance).

Fig 8: Locating Bearing Race For Fatigue
Courtesy of FORD MOTOR CO.
Inspect the bearing for fatigue spalling (metal flaking).

Fig 9: Locating Bearing For Fatigue Spalling (Metal Flaking)
Courtesy of FORD MOTOR CO.
Inspect the bearing for plastic deformation and burrs.

Fig 10: Locating Bearing For Plastic Deformation And Burrs
Courtesy of FORD MOTOR CO.