6.5.7 Bearing fits and tolerances
Table 11: Bearing fits and tolerances table (SI units)
This table references the bearing fits and tolerances according to ISO 286 (ANSI/ABMA Standard 7) in millimeters | inches.
Location
Description Tolerance
13i
14i, 24i
25i, 35i
36i
47i
58i
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
Radial
(Inboard)
Shaft OD
Max
50.013 1.9690 60.015 2.3628 65.014 2.5596 75.014 2.9533 90.015 3.5439 100.015 3.9376
Min
50.002 1.9686 60.002 2.3623 65.001 2.5591 75.001 2.9528 90.002 3.5434 100.002 3.9371
Bearing ID
Max
50.000 1.9685 60.000 2.3622 65.000 2.5591 75.000 2.9528 90.000 3.5433 100.000 3.9370
Min
49.987 1.9680 59.985 2.3616 64.985 2.5585 74.985 2.9522 89.980 3.5425 99.979 3.9362
Interference
Max
0.025
0.0010 0.030
0.0012 0.029
0.0011 0.029
0.0011 0.036
0.0014 0.036
0.0014
Min
0.003
0.0001 0.003
0.0001 0.001
0.0001 0.001
0.0001 0.003
0.0001 0.003
0.0001
Bearing OD
Max
90.000 3.5433 110.000 4.3307 120.000 4.7244 130.000 5.1181 160.000 6.2992 180.000 7.0866
Min
89.985 3.5427 109.985 4.3301 119.985 4.7238 129.982 5.1174 159.974 6.2982 179.974 7.0856
Frame ID
Max
90.033 3.5446 110.033 4.3320 120.033 4.7257 130.038 5.1196 160.038 6.3007 180.038 7.0881
Min
90.013 3.5438 110.012 4.3312 120.012 4.7249 130.015 5.1187 160.015 6.2998 180.015 7.0872
Clearance
Max
0.048
0.0019 0.048
0.0019 0.048
0.0019 0.056
0.0022 0.064
0.0025 0.063
0.0025
Min
0.013
0.0005 0.013
0.0005 0.013
0.0005 0.015
0.0006 0.015
0.0006 0.015
0.0006
Thrust
(Outboard)
Shaft OD
Max
50.013 1.9690 60.015 2.3628 60.015 2.3628 65.014 2.5596 85.014 3.3470 90.015 3.5439
Min
50.002 1.9686 60.002 2.3623 60.002 2.3623 65.001 2.5591 85.001 3.3465 90.002 3.5434
Bearing ID
Max
50.000 1.9685 60.000 2.3622 60.000 2.3622 65.000 2.5591 85.000 3.3465 90.000 3.5433
Min
49.987 1.9680 59.985 2.3616 59.985 2.3616 64.985 2.5585 84.981 3.3457 89.980 3.5425
Interference
Max
0.025
0.0010 0.030
0.0012 0.030
0.0012 0.029
0.0011 0.033
0.0013 0.036
0.0014
Min
0.003
0.0001 0.003
0.0001 0.003
0.0001 0.001
0.0001 0.001
0.0001 0.003
0.0001
Bearing OD
Max
110.000 4.3307 130.000 5.1181 130.000 5.1181 140.000 5.5118 180.000 7.0866 190.000 7.4803
Min
109.985 4.3301 129.982 5.1174 129.982 5.1174 139.982 5.5111 179.974 7.0856 189.970 7.4791
Frame ID
Max
110.035 4.3321 130.038 5.1196 130.051 5.1201 140.038 5.5133 180.038 7.0881 190.043 7.4820
Min
110.012 4.3312 130.015 5.1187 130.028 5.1192 140.015 5.5124 180.015 7.0872 190.015 7.4809
Clearance
Max
0.051
0.0020 0.056
0.0022 0.069
0.0027 0.056
0.0022 0.063
0.0025 0.073
0.0029
Min
0.013
0.0005 0.015
0.0006 0.028
0.0011 0.015
0.0006 0.015
0.0006 0.015
0.0006
Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual
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