•
If the amount of wear is beyond the limit,
have the crankshaft ground and install
undersize bearings. However, if the
amount of wear is within the limit, you
can correct the wear using an oil stone
or oiled grinding paper of fine grain size.
(Be sure to use grinding paper which
has been immersed in oil.)
•
In case that pin’s wear is more than the
limit value, grind the crankshaft journal
and crank pin, and use the undersized
bearings.
Be sure to use grinding paper which has
been immersed in oil.
* Standard values of ‘R’
Crank Pin ‘R’ : 4.5
0
Crank journal ‘R’ : 4
0
<Undersize bearings available>
•
Standard
•
0.25 (Inside diameter is 0.25 mm lesser
than the standard size.)
•
0.50 (Inside diameter is 0.50 mm lesser
than the standard size.)
•
0.75 (Inside diameter is 0.75 mm lesser
than the standard size.)
•
1.00 (Inside diameter is 1.00 mm lesser
than the standard size.)
Undersize bearings are available in 4 dif-
ferent sizes as indicated above, and the
crankshaft can be reused through the
regrinding as described above.
Caution : In case of regrinding, the grinding the “R” part of bearing end should be correctly
done and keep in mind to remove any jaws or coarse surface absolutely.
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