2-7
Chapter 2 SERVICE DATA
Crank
shaft
Crankpin outside
diameter
Standard
ø125
[4.92]
124.930 to 124.950
[4.9185 to 4.9193]
124.890
[4.9169]
Under
size
0.25
124.680 to 124.700
[4.9084 to 4.9094]
124.640
[4.9071]
0.50
124.430 to 124.450
[4.8988 to 4.8996]
124.390
[4.8972]
0.75
124.180 to 124.200
[4.8890 to 4.8898]
124.140
[4.8874]
1.00
123.930 to 123.950
[4.8791 to 4.8799]
123.890
[4.8775]
Crank main
journal outside
diameter
Standard
ø140
[5.51]
139.930 to 139.950
[5.5090 to 5.5098]
139.890
[5.5075]
Under
size
0.25
139.680 to 139.700
[5.4992 to 5.5000]
139.640
[5.4976]
0.50
139.430 to 139.450
[5.4894 to 5.4901]
139.390
[5.4878]
0.75
139.180 to 139.200
[5.4795 to 5.4803]
139.140
[5.4779]
1.00
138.930 to 138.950
[5.5090 to 5.5098]
138.890
[5.4681]
Parallelism of journal and crankpin
Deviation of 0.01
[0.0004] or less over
entire pin length
0.03
[0.012]
Circularity of journal and crankpin
Diameter difference
0.01 [0.0004] or less
0.03
[0.012]
Cylindricity of journal and crankpin
Diameter difference
0.01 [0.0004] or less
0.03
[0.012]
Fillet radius of pin
R7
[0.28]
6.8 to 7.0
[0.268 to 0.276]
Fillet radius of journals
R7
[0.28]
6.8 to 7.0
[0.268 to 0.276]
Hardness of journals and crankpins Hv > 620
Finishing surface roughness Ra 0.2 μm [0.008 µin.]
Angular deviation between pins ±20'
Crankpin width
67
[2.64]
67.20 to 67.30
[2.6457 to 2.6496]
Rearmost
crank main
journal width
Standard
66
[2.60]
66.00 to 66.05
[2.5984 to 2.6004]
Over
size
0.25
66.25 to 66.30
[2.6083 to 2.6102]
0.50
66.50 to 66.55
[2.6181 to 2.6201]
0.75
66.75 to 66.80
[2.6279 to 2.6299]
1.00
67.00 to 67.05
[2.6378 to 2.6398]
1.25
67.25 to 67.30
[2.6476 to 2.6496]
1.50
67.50 to 67.55
[2.6575 to 2.6594]
Runout 0.04 [0.0016] or less
0.10
[0.0039]
TIR
End play (width between web and thrust bearing)
0.300 to 0.520
[0.0118 to 0.0205]
0.600
[0.0236]
Unit: mm [in.]
Item
Nominal
value
Standard value Limit value Remarks
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