Kubota BX2370 Workshop Manual page 169

BX1870,BX2370,BX2670,LA203A,LA243A,RCK48(P),RCK54(P),RCK60B,RCK60D,RCK54D, WSM
(Continued)
[BX2670D (D1005-E4)]
Factory specification
Oil clearance between
crankshaft journal and
crankshaft bearing 2
Allowable limit
Crankshaft journal
Factory specification
O.D. (Intermediate)
Crankshaft bearing 2 I.D. Factory specification
Factory specification
Oil clearance between
crankshaft journal and
crankshaft bearing 3
Allowable limit
Crankshaft journal O.D.
Factory specification
(Flywheel side)
Crankshaft bearing 3 I.D. Factory specification
(Reference)
• Undersize dimensions of crankshaft journal
Undersize
2.3 to 2.7 mm radius
Dimension A
0.091 to 0.10 in. radius
1.0 to 1.5 mm relief
*Dimension B
0.040 to 0.0591 in. relief
47.734 to 47.750 mm dia.
Dimension C
1.8793 to 1.8799 in. dia.
51.721 to 51.740 mm dia.
Dimension D
2.0362 to 2.0370 in. dia.
The crankshaft journal must be fine-finished to higher than Rmax=0.8S.
*Holes to be de-burred and edges rounded with 1.0 to 1.5 mm
(0.040 to 0.059 in.) relief.
1-S64
0.034 to 0.095 mm
0.0014 to 0.0037 in.
0.20 mm
0.0079 in.
47.934 to 47.950 mm
1.8872 to 1.8877 in.
47.984 to 48.029 mm
1.8892 to 1.8909 in.
0.034 to 0.098 mm
0.0013 to 0.0038 in.
0.20 mm
0.0079 in.
51.921 to 51.940 mm
2.0442 to 2.0448 in.
51.974 to 52.019 mm
2.0463 to 2.0479 in.
0.20 mm 0.40 mm
0.0079 in. 0.16 in.
2.3 to 2.7 mm radius
0.091 to 0.10 in. radius
1.0 to 1.5 mm relief
0.040 to 0.0591 in. relief
47.534 to 47.550 mm dia.
1.8715 to 1.8720 in. dia.
51.521 to 51.540 mm dia.
2.0284 to 2.0291 in. dia.
9Y1210855ENS0085US0
ENGINE
KiSC issued 02, 2017 A