ABB DODGE USN 500 Series, Manual, Page: 4 / 16

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Table 4 - Shaft Diameters For Cylindrical Bore Mount
Plummer Blocks (See Figure 2)
Bearing Bore (mm)
Normal Load High Load
Shaft Diameter (mm) Mean Shaft Diameter (mm) Mean (mm)
Nom. Max. Min. Max. Min. Fit Max. Min. Fit
40 40.000 39.988 40.025 40.009 .023 40.033 40.017 .031
45 45.000 44.988 45.025 45.009 .023 45.033 45.017 .031
50 50.000 49.988 49.025 49.009 .023 50.033 50.017 .031
55 55.000 54.985 55.030 55.011 .028 55.039 55.020 .037
60 60.000 59.985 60.030 60.011 .028 60.039 60.020 .037
65 65.000 64.985 65.030 65.011 .028 65.039 65.020 .037
70 70.000 69.985 70.030 70.011 .028 70.039 70.020 .037
75 75.000 74.985 75.030 75.011 .028 75.039 75.020 .037
80 80.000 79.985 80.030 80.011 .028 80.039 80.020 .037
85 85.000 84.980 85.035 85.013 .034 85.045 85.023 .044
90 90.000 89.980 90.035 90.013 .034 90.045 90.023 .044
95 95.000 94.980 95.035 95.013 .034 95.045 95.023 .044
100 100.000 99.980 100.035 100.013 .034 100.045 100.023 .044
110 110.000 109.980 110.035 110.013 .034 110.045 110.023 .044
120 120.000 119.980 120.035 120.013 .034 120.045 120.023 .044
130 130.000 129.975 130.040 130.015 .040 130.052 130.027 .052
140 140.000 139.975 140.040 140.015 .040 140.052 140.027 .052
150 150.000 149.975 150.040 150.015 .040 150.052 150.027 .052
160 160.000 159.975 160.040 160.015 .040 160.052 160.027 .052
These fits apply to roller bearings with inner ring rotation under radial and thrust loads.
Bearing Bore Diameter Normal Load High Load
Up to 160 mm P/C = 0.10 to 0.18 P/C > 0.18
Where:
P = Equivalent Dynamic Load on the Bearing (N)
C = Basic Dynamic Load Rating of Bearing (N)
(For these values see appropriate rating tables)