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DLSASSEMBLY AND REASSEMBLY
Suggestions
Tapered roller bearing preload adjustment
(1) To adjust the preload of tapered roller
bearing, decrease or increase the thickness
of shims 7 between the gear case and oil seal
cover.
(2) Decreasing the thickness of the shims in
creases the preload of:the bearing.
Unit: kgf•m (lbf.ft) [N.mJ
Assembly standard
0.29 to 0.37
(2 to 3)
[3 to4J
J~
Item
I
Tapered roller bearing
[
(pinion) preload
V
Starting torque T of pinion:
=
F kgf (lbf) [N] x Lm (in.) (distance from
center of pinion)
[Example]
V
IfLis 25cm (9.8 in.), the balancerreading should
be 1.l6kgf (2.6 lbf) [hAN] to 1.48kgf(3.3lbf)
[14.5 N] as calculated below:•
0.29 kgf~m (2 lbf~ft) [3 N~mj
=O.25ni(9.8in.)xX1
=
1.16 kgf (2.6 lbf) [11.4 N]
0.37 kgf'm (3 1bf~ft) [4 N•rn]
~0.25 m (9,8 in.) x X2
X2
=
1.48 kgf (3.3 lbf) [14.5 N]
131
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