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Center bearing designs use a small amount of external
waterproofi ng grease. The external waterproofi ng grease can be
displaced by centrifugal force, which can give the impression of
leakage under normal conditions.
The actual bearing grease is contained within the assembly by
seals.
A self-aligning center bearing accepts ± fi ve degrees of angular
misalignment. This helps to ensure that the hanger bearing is
correctly aligned to the driveline under all operating conditions. The
cushion on the self-aligning center bearing is loose by design. The
looseness allows the self-aligning movement.
Removal
Coupling Shaft
1.
Ensure that the support strap is in the correct position to
support the weight of the driveline.
2.
Remove the center bearing bracket bolts. Figure 10.2 and
Figure 10.3.
Fig. 10.2
Yoke-Style Driveline
Fig. 10.3
Flange-Style Driveline
3.
Remove the universal joint from the coupling yoke or fl ange.
Discard the universal joint mounting bolts.
(16579)
Printed in USA
10
Center Bearing Removal and Installation
• If it's necessary to unseat the bearing cup
assemblies: Use a rubber hammer to tap on the yoke
or fl ange, or bearing cup. Once the coupling shaft is free,
remove it from the support straps and move the driveline to
a workbench.
• For driveline assemblies with more than two
coupling shafts: Repeat Step 1 to Step 3 as necessary.
Place the support straps on the additional coupling shafts.
Disassembly
Coupling Yoke or Flange
Always replace a loose or damaged coupling yoke or fl ange. Only
install a new coupling shaft yoke or fl ange nut. Do not reuse this
part. A loose or damaged coupling yoke or fl ange, or a reused
yoke or fl ange nut, can affect driveline performance and cause
the driveline to separate from the vehicle. Serious personal injury
and damage to components can result.
1.
Remove the coupling shaft yoke or fl ange nut. Discard the
nut. Inspect the washer. You can reuse the washer if it's not
damaged. Figure 10.4 and Figure 10.5.
• If the washer is damaged: Discard the washer and
replace it with a new one.
Fig. 10.4
4011841a
Fig. 10.5
Copyright Meritor, Inc., 2021
WARNING
Yoke-Style Driveline
Flange-Style Driveline
4001792a
4011833a
MM-96147 / Revised 03-21
Page 61
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