Bearing Check

WARNING: This page is about a different variant/trim than selected.

NOTE: Establish the cause of the damage and resolve it.

Check whether the bearing cage is damaged at the top, side or at the openings is damaged because of the unprofessional use of a special tool or of the wrong tool.
- Install a new bearing if necessary.
  
  Fig 1: Bearing Check - Cage Damage
  Courtesy of FORD MOTOR CO.
Check whether the ends of the taper rollers are discolored as a result of inadequate lubrication or overheating, possibly through excessive pre-load.
- Install a new bearing and new seals if necessary.
- Check the bearing is correctly lubricated.
  
  Fig 2: Bearing Check - Inadequate Lubrication Or Overheating
  Courtesy of FORD MOTOR CO.
Check whether the ends of the taper rollers are worn away due to incorrect installation, excessive preload or faulty bearing seating.
- Install a new bearing and new seals if necessary.
- Check the bearing is correctly lubricated.
Fig 3: Bearing Check - Excessive Preload Or Faulty Bearing Seating
Courtesy of FORD MOTOR CO.
Check whether the bearing surfaces are grey or grey/black with deposits between the rollers.
- Install a new bearing and new seals if necessary.
- Check the bearing is correctly lubricated.
  
  Fig 4: Bearing Check - Grey Or Grey/Black With Deposits
  Courtesy of FORD MOTOR CO.
Check whether the bearing ring surfaces are grooved caused by static impact.
- Install a new bearing if its surface is rough, or if it is noisy.
  
  Fig 5: Bearing Check - Grooved Caused By Static Impact
  Courtesy of FORD MOTOR CO.

NOTE: Overheating can cause loss of surface hardness.

Fig 6: Bearing Check - Overheating Due To Excessive Preload Or Inadequate Lubrication

Courtesy of FORD MOTOR CO.

Check for a dark blue color caused by overheating (yellow or brown is normal) due to excessive preload or inadequate lubrication.
- Install a new bearing, new seals and check other components as necessary.
Check the surfaces for abrasion due to metal fatigue.
- Install a new bearing and clean all other affected components as necessary.
  
  Fig 7: Bearing Check - Abrasion Due To Metal Fatigue
  Courtesy of FORD MOTOR CO.