Inch Accessories - Locknut and Lockwasher

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Inch Accessories - Locknut and Lockwasher

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The chart below shows dimensions for locknuts and lockwashers used in the mounting of straight bore bearings on shafts.
Other dimensions and tolerances related to shaft configurations are also shown.
Dimensions are presented according to bearing bore size and are applicable to bearings in the various series (e.g., 222 and 223 etc.).

Timken Part Number	Bearing Bore	Major Diameter	Threads No. per Inch	Diameter S-3	Locknut	Lockwasher
N 07-W 07	Bearing Bore N/A 35 mm	Major Diameter N/A 34.95 mm1.376 in	Threads No. per Inch N/A 18	Diameter S-3 N/A 31.75 mm1 1/4 in	Locknut N/A N 07	Lockwasher N/A W 07
N 08-W 08	Bearing Bore N/A 40 mm	Major Diameter N/A 39.70 mm1.563 in	Threads No. per Inch N/A 18	Diameter S-3 N/A 36.51 mm1 7/16 in	Locknut N/A N 08	Lockwasher N/A W 08
N 09-W 09	Bearing Bore N/A 45 mm	Major Diameter N/A 44.88 mm1.767 in	Threads No. per Inch N/A 18	Diameter S-3 N/A 42.86 mm1 11/16 in	Locknut N/A N 09	Lockwasher N/A W 09
N 10-W 10	Bearing Bore N/A 50 mm	Major Diameter N/A 49.96 mm1.967 in	Threads No. per Inch N/A 18	Diameter S-3 N/A 47.63 mm1 7/8 in	Locknut N/A N 10	Lockwasher N/A W 10
N 11-W 11	Bearing Bore N/A 55 mm	Major Diameter N/A 54.79 mm2.157 in	Threads No. per Inch N/A 18	Diameter S-3 N/A 52.39 mm2 1/16 in	Locknut N/A N 11	Lockwasher N/A W 11
N 12-W 12	Bearing Bore N/A 60 mm	Major Diameter N/A 59.94 mm2.360 in	Threads No. per Inch N/A 18	Diameter S-3 N/A 57.15 mm2 1/4 in	Locknut N/A N 12	Lockwasher N/A W 12
N 13-W 13	Bearing Bore N/A 65 mm	Major Diameter N/A 64.72 mm2.548 in	Threads No. per Inch N/A 18	Diameter S-3 N/A 61.91 mm2 7/16 in	Locknut N/A N 13	Lockwasher N/A W 13
N 14-W 14	Bearing Bore N/A 70 mm	Major Diameter N/A 69.88 mm2.751 in	Threads No. per Inch N/A 18	Diameter S-3 N/A 66.68 mm2 5/8 in	Locknut N/A N 14	Lockwasher N/A W 14
AN 15-W 15	Bearing Bore N/A 75 mm	Major Diameter N/A 74.50 mm2.933 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 71.44 mm2 13/16 in	Locknut N/A AN 15	Lockwasher N/A W 15
AN 16-W 16	Bearing Bore N/A 80 mm	Major Diameter N/A 79.68 mm3.137 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 76.20 mm3 in	Locknut N/A AN 16	Lockwasher N/A W 16
AN 17-W 17	Bearing Bore N/A 85 mm	Major Diameter N/A 84.84 mm3.340 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 80.96 mm3 3/16 in	Locknut N/A AN 17	Lockwasher N/A W 17
AN 18-W 18	Bearing Bore N/A 90 mm	Major Diameter N/A 89.59 mm3.527 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 85.73 mm3 3/8 in	Locknut N/A AN 18	Lockwasher N/A W 18
AN 19-W 19	Bearing Bore N/A 95 mm	Major Diameter N/A 94.74 mm3.730 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 90.49 mm3 9/16 in	Locknut N/A AN 19	Lockwasher N/A W 19
AN 20-W 20	Bearing Bore N/A 100 mm	Major Diameter N/A 99.52 mm3.918 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 96.84 mm3 13/16 in	Locknut N/A AN 20	Lockwasher N/A W 20
AN 21-W 21	Bearing Bore N/A 105 mm	Major Diameter N/A 104.70 mm4.122 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 100.01 mm3 15/16 in	Locknut N/A AN 21	Lockwasher N/A W 21
AN 22-W 22	Bearing Bore N/A 110 mm	Major Diameter N/A 109.86 mm4.325 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 106.36 mm4 3/16 in	Locknut N/A AN 22	Lockwasher N/A W 22
AN 24-W 24	Bearing Bore N/A 120 mm	Major Diameter N/A 119.79 mm4.716 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 115.89 mm4 9/16 in	Locknut N/A AN 24	Lockwasher N/A W 24
AN 26-W 26	Bearing Bore N/A 130 mm	Major Diameter N/A 129.69 mm5.106 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 125.41 mm4 15/16 in	Locknut N/A AN 26	Lockwasher N/A W 26
AN 28-W 28	Bearing Bore N/A 140 mm	Major Diameter N/A 139.62 mm5.497 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 134.94 mm5 5/16 in	Locknut N/A AN 28	Lockwasher N/A W 28
AN 30-W 30	Bearing Bore N/A 150 mm	Major Diameter N/A 149.56 mm5.888 in	Threads No. per Inch N/A 12	Diameter S-3 N/A 146.05 mm5 3/4 in	Locknut N/A AN 30	Lockwasher N/A W 30
AN 32-W 32	Bearing Bore N/A 160 mm	Major Diameter N/A 159.61 mm6.284 in	Threads No. per Inch N/A 8	Diameter S-3 N/A 153.99 mm6 1/16 in	Locknut N/A AN 32	Lockwasher N/A W 32
AN 34-W 34	Bearing Bore N/A 170 mm	Major Diameter N/A 169.14 mm6.659 in	Threads No. per Inch N/A 8	Diameter S-3 N/A 163.51 mm6 7/16 in	Locknut N/A AN 34	Lockwasher N/A W 34
AN 36-W 36	Bearing Bore N/A 180 mm	Major Diameter N/A 179.48 mm7.066 in	Threads No. per Inch N/A 8	Diameter S-3 N/A 174.63 mm6 7/8 in	Locknut N/A AN 36	Lockwasher N/A W 36
AN 38-W 38	Bearing Bore N/A 190 mm	Major Diameter N/A 189.79 mm7.472 in	Threads No. per Inch N/A 8	Diameter S-3 N/A 184.15 mm7 1/4 in	Locknut N/A AN 38	Lockwasher N/A W 38
AN 40-W 40	Bearing Bore N/A 200 mm	Major Diameter N/A 199.31 mm7.847 in	Threads No. per Inch N/A 8	Diameter S-3 N/A 193.68 mm7 5/8 in	Locknut N/A AN 40	Lockwasher N/A W 40