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(2)
Determination of necessary shim thickness for optimum setting of torsional backlash of the
crown gear
Correct setting of the crown gear is necessary to obtain an optimum torsional backlash of the
bevel gearing.
Bearing width "B" for the taper roller bearing on the crown gear can be measured according to
chapter 5) at page 3-24 "Determination of bearing width and difference of a taper roller bearing".
Thickness of the shim and the correct
setting of the crown gear respectively will
be determined according to the following
method :
Put the measuring fixture into the
housing bearing bore L3 until contact is
obtained (see Figure 100 or 101).
(S) Measuring fixture 62827
Put measuring fixture dial gauge to zero
position.
At zero position of the dial gauge the
following can be taken as basis :
Dimension "3" = 68.50 mm
Determine Dimension "4" in housing
bearing bore L3 and add it to the
respective Dimension "3".
Example:
Dimension "3"
Dimension "4"
Housing dimension "G"
68.50 mm
0.03 mm
68.53 mm
3-27
BRJ7DU098
BRJ7DU099
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