Table 25. AFBMA Standard for Shafts for Locknuts (series N-00) for Ball Bearings and Cylindrical and Spherical Roller Bearings. Inch Design
M + L = Length of Keyway
L H
S
M
A
V 2
Min. Bearing Width –0.016 ” (0.41 mm)
W Threads
( see footnotes )
Threads a
Relief
Keyway
Major Dia. Max. 0.391 0.469 0.586 0.664 0.781 0.969 1.173 1.376 1.563 1.767 1.967 2.157 2.360 2.548 2.751 2.933 3.137
Pitch Dia. Max.
Minor Dia. Max. 0.3527 0.4307 0.5477 0.6257 0.7427 0.9307 1.1048 1.3078 1.4948 1.6988 1.8988 2.0888 2.2918 2.4798 2.6828 2.8308 3.0348
Length L Max. 0.297 0.391 0.391 0.422 0.453 0.484
Dia. A Max.
Width W Max. 0.078 0.078 0.078 0.078 0.078 0.078 0.109 0.109 0.109 0.141 0.141 0.141 0.141 0.141 0.141 0.172 0.172
Depth H Min. 0.062 0.062 0.078 0.078 0.078 0.094 0.094 0.094 0.094 0.094 0.094 0.125 0.125 0.125 0.125 0.125 0.125
Width S Min. 0.125 0.125 0.125 0.125 0.188 0.188 0.188 0.188 0.312 0.312 0.312 0.312 0.312 0.312 0.312 0.312 0.375
V 2
M
Locknut Number
Bearing Bore 0.3937 0.4724 0.5906 0.6693 0.7874 0.9843 1.1811 1.3780 1.5748 1.7717 1.9685 2.1654 2.3622 2.5591 2.7559 2.9528 3.1496
No. per inch
Max. 0.312 0.406 0.500 0.562 0.719 0.875 1.062 1.250 1.469 1.688 1.875 2.062 2.250 2.438 2.625 2.781 3.000
Min. 0.094 0.094 0.094 0.094 0.094 0.125 0.125 0.125 0.125 0.156 0.156 0.156 0.156 0.156 0.250 0.250 0.250
N-00 N-01 N-02 N-03 N-04 N-05 N-06 N-07 N-08 N-09 N-10 N-11 N-12 N-13 N-14
32 32 32 32 32 32 18 18 18 18 18 18 18 18 18 12 12
0.3707 0.4487 0.5657 0.6437 0.7607 0.9487 1.1369 1.3399 1.5269 1.7309 1.9309 2.1209 2.3239 2.5119 2.7149 2.8789 3.0829
0.3421 0.4201 0.5371 0.6151 0.7321 0.9201 1.0942 1.2972 1.4842 1.6882 1.8882 2.0782 2.2812 2.4692 2.6722 2.8095 3.0135
0.484 0.516 0.547 0.547 0.609 0.609 0.641 0.672 0.672 0.703 0.703
AN-15 AN-16
a 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. See foot- note to Table 26 for material other than sttel. For sizes larger than shown, see ANSI/ABMA 8.2-1991.
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