14-79
11) Calculate the gap (distance E) between the outer race and
inner race using the measurements obtained in step 9 and
10 and the following formula.
Formula:
Bearing height – Outer race height = Gap (distance E)
Example:
When, bearing height from the outer race end to the inner
race end is 34.9 mm (1.37 in),
And, outer race height is 29.7 mm (1.17 in):
34.9 – 29.7 = 5.2
Therefore, the gap (distance E) is 5.2 mm (0.20 in).
12) Determine the calculation value using the vertical shaft
length (distance D) obtained in step 7 and the gap (distance
E) obtained in step 11 and the following formula.
Formula:
Vertical shaft length (distance D) + Gap (distance E) – 147.2
= Calculation value
Example:
When, vertical shaft length (distance D) is 141.8 mm (5.58
in),
And, gap (distance E) is 5.2 mm (0.20 in):
141.8 + 5.2 – 147.2 = –0.20
Therefore, the calculation value is –0.20 mm (–0.008 in).
13) Cross reference the calculation value and the engagement
mark located on the trim tab installation part of the gear
case, and select the shim of the appropriate thickness from
the shim selection table accordingly.
• Shim type table
[1]
GEAR CASE
[2]
ENGAGEMENT
MARK
[1] Shim type
[2] Thickness
[3] Pinion gear shim A
0.10 mm (0.004 in)
[4] Pinion gear shim B
0.15 mm (0.006 in)
[5] Pinion gear shim C
0.30 mm (0.012 in)
[6] Pinion gear shim D
0.50 mm (0.020 in)
