Inner Ring Raceway: While holding outer ring
stationary, rotate inner ring at least three revolutions. Examine the raceway
of the inner ring from both sides for pits or spalling. A bearing assembly
should be replaced when damaged. Light particle indentation is acceptable.
Outer Ring Raceway: While holding inner ring
stationary, rotate outer ring at least three revolutions. Examine the raceway
of the outer ring from both sides as with the raceway of the inner ring. If the
raceway is spalled or pitted, replace the bearing assembly. Light particle
indentation is acceptable.
Bearing External Surfaces
The bearing must be replaced if damage is found in any of the following
areas:
Radial cracks on front and rear faces of outer or inner rings.
Cracks on outside diameter or outer ring (particularly around snap ring
groove).
Deformation or cracks in ball cage (particularly around rivets).
Spin Test
Lubricate bearing raceways with a slight amount of clean Synthetic
MERCON® Multi Purpose Automatic Transmission Fluid
E6AZ-19582-B (ESR-M2C163-A2) or equivalent. Turn the bearing back and forth
slowly until the raceways and balls are coated.
Hold bearing by the inner ring in a vertical position. Vertical movement
between inner and outer rings is acceptable. Spin outer ring several times by
hand (do not use an air hose). If roughness or vibration is noticeable or outer
ring stops abruptly, the bearing should be cleaned again and relubricated.
Roughness in a bearing is usually caused by foreign particles in the bearing,
which come from inside the transmission case. If bearing is still rough after
cleaning and relubricating three times, it must be replaced.
Hold bearing by the inner ring in a horizontal position with snap ring
groove up. Spin outer ring several times by hand (do not use an air hose). If
the bearing is still rough after cleaning and relubricating three times (if not
done in Step 2), it must be replaced. If the bearing passes the visual
inspection and spin tests, it should be installed in the transmission.
