6F65G11
6-48
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Shimming
Example:
If “M3” is 26.05 mm and “P” is (+5), then
T3 = 26.05 – 25.5 – (+5)/100 mm
= 0.55 – 0.05 mm
= 0.60 mm
5. Select the pinion shim(s) (T3) as follows.
Example:
If “T3” is 0.43 mm, then the pinion shim is
0.45 mm.
If “T3” is 0.38 mm, then the pinion shim is
0.38 mm.
Selecting the forward gear shims
1. Turn the taper roller bearing outer race 1
two or three times to seat the rollers, and
then measure the bearing height (M1) as
shown.
NOTE:
9 Select the shim thickness (T1) by using the
specified measurement(s) and the calcula-
tion formula.
9 Measure the bearing outer race at three
points to find the height average.
2. Calculate the forward gear shim thick-
ness (T1) as shown in the examples
below.
NOTE:
“F” is the deviation of the lower case dimen-
sion from standard. The “F” mark a is
stamped on the trim tab mounting surface of
the lower case in 0.01 mm units. If the “F”
mark is unreadable, assume that “F” is zero
and check the backlash when the unit is
assembled.
Calculated numeral
Rounded numeral
at 1/100th place
1, 2 2
3, 4, 5 5
6, 7, 8 8
9, 10 10
Available shim thicknesses:
0.05, 0.08, 0.12, 0.30, and
0.50 mm
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