Mitsubishi S6R Series Service Manual page 45

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