14-83
[2] Calculation value
+0.15 (+0.006) +0.10 (+0.004) +0.05 (+0.002)
–
–
–
+0.10 (+0.004) +0.05 (+0.002)
±0 (±0.000)
28.00
(1.102)
–
0.65 (0.026)
0.70 (0.028)
0.75 (0.030)
28.05
(1.104)
28.05
(1.104)
–
0.60 (0.024)
0.65 (0.026)
0.70 (0.028)
28.10
(1.106)
d. THRUST SHIM
1) Assemble the outer race and inner race of the 50 x 90 x 28
mm taper bearing, and turn the outer race two or three
turns.
2) Measure the bearing height (distance F) from the outer race
end to the inner race end as shown, and record the
measurement.
3) Measure the inner race height (distance K) as shown, and
record the measurement.
4) Determine the calculation value using the bearing height
(distance F), inner race height (distance K) and the
following formula.
Formula:
Bearing height (distance F) – Inner race height (distance K)
= Calculation value
Example:
When, bearing height (distance F) is 28.05 mm (1.104 in),
And, inner race height (distance K) is 28.00 mm (1.102 in):
28.05 – 28.00 = 0.05
Therefore, the calculation value is 0.05 mm (0.002 in).
5) Check the calculation value and the bearing height, and
select the shim of the appropriate thickness from the shim
selection table accordingly.
• Shim type table
[1]
50 x 90 x 28 mm
TAPER BEARING
(INNER RACE)
[1]
OUTER RACE
[2]
INNER RACE
[1] Shim type
[2] Thickness
[3] Thrust shim A
0.10 mm (0.004 in)
[4] Thrust shim B
0.15 mm (0.006 in)
[5] Thrust shim C
0.30 mm (0.012 in)
[6] Thrust shim D
0.50 mm (0.020 in)
• Thrust shim selection table
[1] Bearing height
[3] Unit: mm (in)
Refer to page 14-80 for the information on how to read the
shim selection table and shim combination.
