SHAFT DRIVE 4-17
Shims 1 specifications
Part No Shim thickness
27326 34201 1.05 mm (0.041 in)
27326-34211 1.10 mm (0.043 in)
27326 34221 1.20 mm (0.047 in)
27326-34231 1.25 mm (0.049 in)
27326-34241 1.35 mm (0.053 in)
27326-34201
-140
1.40 mm (0.055 in)
27326-34201
-145
1.45 mm (0.057 in)
27326-34201
-150
1.50 mm (0.059 in)
The shims 1 are available as a set
{27326-34810 (1.40 – 1.50), 27326-
34820 (1.05 – 1.35)}.
Shims 2 specifications
Part No. Shim thickness
27327-34200 0.35 mm (0.014 in)
27327-34210 0.40 mm (0.016 in)
27327-34220 0.50 mm (0.020 in)
27327-34230 0.60 mm (0.024 in)
The shims 1 are available as a set
(27327-34810).
If the backlash is not within the specification, adjust the shim thick-
ness as follows:
• Remove shims from final gear bearing case and final gear case,
and measure total thickness.
• In order not to change the clearance between final driven bevel
gear and bearing, the total thickness of the shims installed af-
ter a change is made must equal the original total thickness of
shims.
• If backlash is too large:
a) Install a thinner shim pack 1 between final driven bevel
gear and final gear case.
b) Increase thickness of shims 2 between final driven bevel
gear bearing and bearing case by an amount equal to
decrease above.
• If backlash is too small:
a) Install a thicker shim pack 1 between final driven bevel
gear and final gear case.
b) Decrease thickness of shims 2 between final driven gear
bearing and bearing case by an amount equal to increase
above.
EXAMPLE:
Final gear to case shims 1; 1.45 mm + 1.40 mm = 2.85 mm
Final gear bearing to bearing case shims 2,
0.35 mm + 0 60 mm = 0.95 mm
Original total measurement = 3.80 mm
Backlash too large:
Final gear to case shims 1; 1.35 mm + 1.45 mm = 2.80 mm
Final gear bearing to bearing case shims 2,
0. 0 mm + 0.40 mm = 1.00 mm
Total thickness = 3.80 mm
Backlash too small:
Final gear to case shims 1 1 50 mm + 1.40 mm = 2.90 mm
Final gear bearing to bearing case shims 2;
0.50 mm + 0.40 mm = 0.90 mm
Total thickness = 3.80 mm
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