Industry Standard Locknut and Locknut Shaft Inch Dimensions
Locknut Information
Standard Locknuts – (Series N-00) for Ball Bearings and Cylindrical and Spherical Roller Bearings. Inch
|
LockNut
Number |
Thds.
per Inch |
Thread Minor
Dia. |
Thread Pitch
Dia. |
Thread Major
Dia. d |
Outside
Dia. C |
Face Diameter
E |
Slot Dimension
|
Thickness
D |
||||||
|
Width
G |
Height
H |
|||||||||||||
|
Min.
|
Max.
|
Min.
|
Max.
|
Min.
|
Max.
|
Min.
|
Max.
|
Min.
|
Max.
|
Max.
|
Min.
|
Max.
|
||
|
N-00
|
32
|
0.3572
|
0.3606
|
0.3707
|
0.3733
|
0.391
|
0.755
|
.605
|
.625
|
.120
|
.130
|
.073
|
.209
|
.229
|
|
N-01
|
32
|
0.4352
|
0.4386
|
0.4487
|
0.4513
|
0.469
|
0.880
|
.699
|
.719
|
.120
|
.130
|
.073
|
.303
|
.323
|
|
N-02
|
32
|
0.5522
|
0.5556
|
0.5657
|
0.5687
|
0.586
|
1.005
|
.793
|
.813
|
.120
|
.130
|
.104
|
.303
|
.323
|
|
N-03
|
32
|
0.6302
|
0.6336
|
0.6437
|
0.6467
|
0.664
|
1.130
|
.918
|
.938
|
.120
|
.130
|
.104
|
.334
|
.354
|
|
N-04
|
32
|
0.7472
|
0.7506
|
0.7607
|
0.7641
|
0.781
|
1.380
|
1.105
|
1.125
|
.178
|
.198
|
.104
|
.365
|
.385
|
|
N-05
|
32
|
0.9352
|
0.9386
|
0.9487
|
0.9521
|
0.969
|
1.568
|
1.261
|
1.281
|
.178
|
.198
|
.104
|
.396
|
.416
|
|
N-06
|
18
|
1.1129
|
1.1189
|
1.1369
|
1.1409
|
1.173
|
1.755
|
1.480
|
1.500
|
.178
|
.198
|
.104
|
.396
|
.416
|
|
N-07
|
18
|
1.3159
|
1.3219
|
1.3399
|
1.3439
|
1.376
|
2.068
|
1.793
|
1.813
|
.178
|
.198
|
.104
|
.428
|
.448
|
|
N-08
|
18
|
1.5029
|
1.5089
|
1.5269
|
1.5314
|
1.563
|
2.255
|
1.980
|
2.000
|
.240
|
.260
|
.104
|
.428
|
.448
|
|
N-09
|
18
|
1.7069
|
1.7129
|
1.7309
|
1.7354
|
1.767
|
2.536
|
2.261
|
2.281
|
.240
|
.260
|
.104
|
.428
|
.448
|
|
N-10
|
18
|
1.9069
|
1.9129
|
1.9309
|
1.9354
|
1.967
|
2.693
|
2.418
|
2.438
|
.240
|
.260
|
.104
|
.490
|
.510
|
|
N-11
|
18
|
2.0969
|
2.1029
|
2.1209
|
2.1260
|
2.157
|
2.974
|
2.636
|
2.656
|
.240
|
.260
|
.135
|
.490
|
.510
|
|
N-12
|
18
|
2.2999
|
2.3059
|
2.3239
|
2.3290
|
2.360
|
3.161
|
2.824
|
2.844
|
.240
|
.260
|
.135
|
.521
|
.541
|
|
N-13
|
18
|
2.4879
|
2.4949
|
2.5119
|
2.5170
|
2.548
|
3.380
|
3.043
|
3.063
|
.240
|
.260
|
.135
|
.553
|
.573
|
|
N-14
|
18
|
2.6909
|
2.6969
|
2.7149
|
2.7200
|
2.751
|
3.630
|
3.283
|
3.313
|
.240
|
.260
|
.135
|
.553
|
.573
|
|
AN-15
|
12
|
2.8428
|
2.8518
|
2.8789
|
2.8843
|
2.933
|
3.880
|
3.533
|
3.563
|
.360
|
.385
|
.135
|
.584
|
.604
|
All dimensions in inches. For dimensions in millimeters, multiply inch values, except thread diameters, by 25.4 and round result to two decimal places. Threads are American National form, Class 3. Typical steels for locknuts are: AISI, C1015, C1018, C1020, C1025, C1035, C1117, C1118, C1212, C1213, and C1215. Minimum hardness, tensile strength, yield strength and elongation are given in ANSI/ABMA 8.2-1991 which also lists larger sizes of locknuts.
Standard Shafts For Locknuts – (Series N-00) for Ball Bearings and Cylindrical and Spherical Roller Bearings - Inch Design
|
Locknut
Number |
Bearing
Bore |
V2
|
Threadsa
|
Relief
|
Keyway
|
|||||||
|
No.
per inch |
Major
Dia. |
Pitch
Dia. |
Minor
Dia. |
Length
L |
Dia.
A |
Width
W |
Depth
H |
Width
S |
M
|
|||
|
Max.
|
Max.
|
Max.
|
Max.
|
Max.
|
Max.
|
Max.
|
Min.
|
Min.
|
Min.
|
|||
|
N-00
|
0.3937
|
0.312
|
32
|
0.391
|
0.3707
|
0.3527
|
0.297
|
0.3421
|
0.078
|
0.062
|
0.125
|
0.094
|
|
N-01
|
0.4724
|
0.406
|
32
|
0.469
|
0.4487
|
0.4307
|
0.391
|
0.4201
|
0.078
|
0.062
|
0.125
|
0.094
|
|
N-02
|
0.5906
|
0.500
|
32
|
0.586
|
0.5657
|
0.5477
|
0.391
|
0.5371
|
0.078
|
0.078
|
0.125
|
0.094
|
|
N-03
|
0.6693
|
0.562
|
32
|
0.664
|
0.6437
|
0.6257
|
0.422
|
0.6151
|
0.078
|
0.078
|
0.125
|
0.094
|
|
N-04
|
0.7874
|
0.719
|
32
|
0.781
|
0.7607
|
0.7427
|
0.453
|
0.7321
|
0.078
|
0.078
|
0.188
|
0.094
|
|
N-05
|
0.9843
|
0.875
|
32
|
0.969
|
0.9487
|
0.9307
|
0.484
|
0.9201
|
0.078
|
0.094
|
0.188
|
0.125
|
|
N-06
|
1.1811
|
1.062
|
18
|
1.173
|
1.1369
|
1.1048
|
0.484
|
1.0942
|
0.109
|
0.094
|
0.188
|
0.125
|
|
N-07
|
1.3780
|
1.250
|
18
|
1.376
|
1.3399
|
1.3078
|
0.516
|
1.2972
|
0.109
|
0.094
|
0.188
|
0.125
|
|
N-08
|
1.5748
|
1.469
|
18
|
1.563
|
1.5269
|
1.4948
|
0.547
|
1.4842
|
0.109
|
0.094
|
0.312
|
0.125
|
|
N-09
|
1.7717
|
1.688
|
18
|
1.767
|
1.7309
|
1.6988
|
0.547
|
1.6882
|
0.141
|
0.094
|
0.312
|
0.156
|
|
N-10
|
1.9685
|
1.875
|
18
|
1.967
|
1.9309
|
1.8988
|
0.609
|
1.8882
|
0.141
|
0.094
|
0.312
|
0.156
|
|
N-11
|
2.1654
|
2.062
|
18
|
2.157
|
2.1209
|
2.0888
|
0.609
|
2.0782
|
0.141
|
0.125
|
0.312
|
0.156
|
|
N-12
|
2.3622
|
2.250
|
18
|
2.360
|
2.3239
|
2.2918
|
0.641
|
2.2812
|
0.141
|
0.125
|
0.312
|
0.156
|
|
N-13
|
2.5591
|
2.438
|
18
|
2.548
|
2.5119
|
2.4798
|
0.672
|
2.4692
|
0.141
|
0.125
|
0.312
|
0.156
|
|
N-14
|
2.7559
|
2.625
|
18
|
2.751
|
2.7149
|
2.6828
|
0.672
|
2.6722
|
0.141
|
0.125
|
0.312
|
0.250
|
|
AN-15
|
2.9528
|
2.781
|
12
|
2.933
|
2.8789
|
2.8308
|
0.703
|
2.8095
|
0.172
|
0.125
|
0.312
|
0.250
|
|
AN-16
|
3.1496
|
3.000
|
12
|
3.137
|
3.0829
|
3.0348
|
0.703
|
3.0135
|
0.172
|
0.125
|
0.375
|
0.250
|
Threads are American National form Class 3. All dimensions in inches. For dimensions in millimeters, multiply inch values, except thread diameters, by 25.4 and round result to two decimal places. For larger sizes, see ANSI/ABMA 8.2-1991
Figure 1
Image 1
Image 2
