Shim, Determining
The specified bearing pre-load is obtained by adding a constant pre-load figure of 0.25 mm to the reading obtained.
Example:
Measured value 0.70 mm
+ Preload (constant value) 0.25 mm
Shim thickness = 0.95 mm
Example:
ADJUSTMENT SHIM THICKNESS SPECIFICATION
| Bearing Clearance Measured Value | Adjustment Shim Thickness According to the Table |
|---|---|
| 0.70 mm | 0.95 mm |
BEARING PLAY AND SHIM THICKNESS SPECIFICATION
| Bearing Play | Shim |
|---|---|
| Measured value (mm) | Thickness (mm) |
| 0.303 to 0.449 0.450 to 0.499 0.500 to 0.549 |
0.650 0.700 0.750 |
| 0.550 to 0.599 0.600 to 0.649 0.650 to 0.699 |
0.800 0.850 0.900 |
| 0.700 to 0.749 0.750 to 0.799 0.800 to 0.849 |
0.950 1.000 1.050 |
| 0.850 to 0.899 0.900 to 0.949 0.950 to 0.999 |
1.100 1.150 1.200 |
| 8 1.000 to 1.049 1.050 to 1.099 1.100 to 1.149 |
1.250 1.300 1.350 |
| 1.150 to 1.199 | 1.400 |
NOTE:
Allocate the shims. Refer to the Parts Information.
- Remove the transmission housing and remove the tapered roller bearing outer race from the transmission housing.
- Counter Support, for example, -22/2-
- Internal Puller 46 to 58 mm, for example, -21/7-
If the measured shim thickness is larger than those listed in the Table, then install two shims that add up to the necessary thickness.
- Install the shim with the correct thickness, thickest shim first.
Tolerance variations make it possible to find the exact shim thickness required.
- Install the outer race/tapered roller bearing with the selected shim (in the example: 0.95 mm) and tighten the transmission housing.
- Support the transmission housing with the -3144- directly under the bearing mount.