lock nuts
Accessories
Lock nuts are used to locate bearings onto a shaft. Additionally, they can be used to mount bearings with a tapered bore onto tapered shaft seats and adapter sleeves, and to dismount bearings from withdrawal sleeves. Lock nuts are also frequently used to secure gears, belt pulleys and other machine components.
lock nuts Models
Metric lock nuts
Inch lock nuts
Metric lock nuts
Lock nut | Associated lock washer / locking clip | ||||
[mm] | d3[mm] | B[mm] | G | ||
10 | 18 | 4 | M 10×0.75 | KM 0 | MB 0 |
12 | 22 | 4 | M 12×1 | KM 1 | MB 1 |
15 | 25 | 5 | M 15×1 | KM 2 | MB 2 |
17 | 28 | 5 | M 17×1 | KM 3 | MB 3 |
20 | 32 | 6 | M 20×1 | KM 4 | MB 4 |
25 | 38 | 7 | M 25×1.5 | KM 5 | MB 5 |
30 | 45 | 7 | M 30×1.5 | KM 6 | MB 6 |
35 | 52 | 8 | M 35×1.5 | KM 7 | MB 7 |
40 | 58 | 9 | M 40×1.5 | KM 8 | MB 8 |
45 | 65 | 10 | M 45×1.5 | KM 9 | MB 9 |
50 | 70 | 11 | M 50×1.5 | KM 10 | MB 10 |
55 | 75 | 11 | M 55×2 | KM 11 | MB 11 |
60 | 80 | 11 | M 60×2 | KM 12 | MB 12 |
65 | 85 | 12 | M 65×2 | KM 13 | MB 13 |
70 | 92 | 12 | M 70×2 | KM 14 | MB 14 |
75 | 98 | 13 | M 75×2 | KM 15 | MB 15 |
80 | 105 | 15 | M 80×2 | KM 16 | MB 16 |
85 | 110 | 16 | M 85×2 | KM 17 | MB 17 |
90 | 120 | 16 | M 90×2 | KM 18 | MB 18 |
95 | 125 | 17 | M 95×2 | KM 19 | MB 19 |
100 | 130 | 18 | M 100×2 | KM 20 | MB 20 |
105 | 140 | 18 | M 105×2 | KM 21 | MB 21 |
110 | 145 | 19 | M 110×2 | KM 22 | MB 22 |
115 | 150 | 19 | M 115×2 | KM 23 | MB 23 |
120 | 145 | 20 | M 120×2 | KML 24 | MBL 24 |
120 | 155 | 20 | M 120×2 | KM 24 | MB 24 |
125 | 160 | 21 | M 125×2 | KM 25 | MB 25 |
130 | 155 | 21 | M 130×2 | KML 26 | MBL 26 |
130 | 165 | 21 | M 130×2 | KM 26 | MB 26 |
135 | 175 | 22 | M 135×2 | KM 27 | MB 27 |
140 | 165 | 22 | M 140×2 | KML 28 | MBL 28 |
140 | 180 | 22 | M 140×2 | KM 28 | MB 28 |
145 | 190 | 24 | M 145×2 | KM 29 | MB 29 |
150 | 180 | 24 | M 150×2 | KML 30 | MBL 30 |
150 | 195 | 24 | M 150×2 | KM 30 | MB 30 |
155 | 200 | 25 | M 155×3 | KM 31 | MB 31 |
160 | 190 | 25 | M 160×3 | KML 32 | MBL 32 |
160 | 210 | 25 | M 160×3 | KM 32 | MB 32 |
165 | 210 | 26 | M 165×3 | KM 33 | MB 33 |
170 | 200 | 26 | M 170×3 | KML 34 | MBL 34 |
170 | 220 | 26 | M 170×3 | KM 34 | MB 34 |
180 | 210 | 27 | M 180×3 | KML 36 | MBL 36 |
180 | 230 | 27 | M 180×3 | KM 36 | MB 36 |
190 | 220 | 28 | M 190×3 | KML 38 | MBL 38 |
190 | 240 | 28 | M 190×3 | KM 38 | MB 38 |
200 | 240 | 29 | M 200×3 | KML 40 | MBL 40 |
200 | 250 | 29 | M 200×3 | KM 40 | MB 40 |
210 | 270 | 30 | Tr 210×4 | HM 42 T | |
220 | 260 | 30 | Tr 220×4 | HM 3044 | MS 3044 |
220 | 260 | 30 | Tr 220×4 | HME 3044 | MS 3044 |
220 | 280 | 32 | Tr 220×4 | HM 44 T | MB 44 |
230 | 290 | 34 | Tr 230×4 | HM 46 T | |
240 | 290 | 34 | Tr 240×4 | HM 3048 | MS 3052-48 |
240 | 290 | 34 | Tr 240×4 | HME 3048 | MS 3052-48 |
240 | 300 | 34 | Tr 240×4 | HM 48 T | MB 48 |
250 | 320 | 36 | Tr 250×4 | HM 50 T | |
260 | 310 | 34 | Tr 260×4 | HM 3052 | MS 3052-48 |
260 | 310 | 34 | Tr 260×4 | HME 3052 | MS 3052-48 |
260 | 330 | 36 | Tr 260×4 | HM 52 T | MB 52 |
280 | 330 | 38 | Tr 280×4 | HM 3056 | MS 3056 |
Inch lock nuts
Threads per inch | Lock nut | Associated locking device | |||
G[mm] | d3max.[mm] | B[mm] | |||
9.931 | 32 | 19.177 | 5.817 | N 00 | W 00 |
11.913 | 32 | 22.352 | 8.204 | N 01 | W 01 |
14.884 | 32 | 25.527 | 8.204 | N 02 | W 02 |
16.866 | 32 | 28.702 | 8.992 | N 03 | W 03 |
19.837 | 32 | 35.052 | 9.779 | N 04 | W 04 |
24.613 | 32 | 39.827 | 10.566 | N 05 | W 05 |
29.794 | 18 | 44.577 | 10.566 | N 06 | W 06 |
34.95 | 18 | 52.527 | 11.379 | N 07 | W 07 |
39.7 | 18 | 57.277 | 11.379 | N 08 | W 08 |
44.882 | 18 | 64.414 | 11.379 | N 09 | W 09 |
49.962 | 18 | 68.402 | 12.954 | N 10 | W 10 |
54.788 | 18 | 75.54 | 12.954 | N 11 | W 11 |
59.944 | 18 | 80.289 | 13.741 | N 12 | W 12 |
64.719 | 18 | 85.852 | 14.554 | N 13 | W 13 |
69.875 | 18 | 92.202 | 14.554 | N 14 | W 14 |
74.498 | 12 | 98.552 | 15.342 | AN 15 | W 15 |
79.68 | 12 | 105.689 | 15.342 | AN 16 | W 16 |
84.836 | 12 | 112.039 | 16.129 | AN 17 | W 17 |
89.586 | 12 | 118.389 | 17.729 | AN 18 | W 18 |
94.742 | 12 | 125.552 | 18.517 | AN 19 | W 19 |
99.517 | 12 | 131.902 | 19.304 | AN 20 | W 20 |
104.699 | 12 | 138.252 | 19.304 | AN 21 | W 21 |
109.855 | 12 | 135.077 | 20.091 | N 022 | W 022 |
109.855 | 12 | 145.39 | 20.091 | AN 22 | W 22 |
119.786 | 12 | 144.602 | 20.904 | N 024 | W 024 |
119.786 | 12 | 155.702 | 20.904 | AN 24 | W 24 |
129.692 | 12 | 155.702 | 22.479 | N 026 | W 026 |
129.692 | 12 | 171.577 | 22.479 | AN 26 | W 26 |
139.624 | 12 | 165.227 | 24.079 | N 028 | W 028 |
139.624 | 12 | 180.315 | 24.079 | AN 28 | W 28 |
149.555 | 12 | 181.102 | 24.867 | N 030 | W 030 |
149.555 | 12 | 195.402 | 24.867 | AN 30 | W 30 |
159.614 | 8 | 190.627 | 26.441 | N 032 | W 032 |
159.614 | 8 | 204.927 | 26.441 | AN 32 | W 32 |
169.139 | 8 | 200.152 | 27.254 | N 034 | W 034 |
169.139 | 8 | 219.989 | 27.254 | AN 34 | W 34 |
179.476 | 8 | 209.677 | 28.042 | N 036 | W 036 |
179.476 | 8 | 230.327 | 28.042 | AN 36 | W 36 |
189.789 | 8 | 220.802 | 28.829 | N 038 | W 038 |
189.789 | 8 | 240.64 | 28.829 | AN 38 | W 38 |
199.314 | 8 | 239.852 | 30.429 | N 040 | W 040 |
199.314 | 8 | 250.165 | 30.429 | AN 40 | W 40 |
219.151 | 8 | 260.477 | 32.004 | N 044 | W 044 |
219.151 | 8 | 279.527 | 32.004 | N 44 | W 44 |
239.827 | 6 | 290.652 | 34.392 | N 048 | PL 48 |
258.877 | 6 | 309.702 | 35.966 | N 052 | PL 52 |
279.502 | 6 | 330.327 | 38.354 | N 056 | PL 56 |
299.339 | 6 | 360.502 | 39.954 | N 060 | PL 60 |
319.075 | 6 | 381.127 | 42.316 | N 064 | PL 64 |
338.811 | 5 | 400.177 | 45.491 | N 068 | PL 68 |
359.918 | 5 | 419.227 | 45.491 | N 072 | PL 72 |
379.908 | 5 | 450.977 | 48.666 | N 076 | PL 76 |
399.923 | 5 | 470.027 | 52.654 | N 080 | PL 80 |
419.913 | 5 | 490.677 | 52.654 | N 084 | PL 84 |
439.903 | 5 | 520.827 | 60.579 | N 088 | PL 88 |
459.918 | 5 | 539.877 | 60.579 | N 092 | PL 92 |
479.908 | 5 | 560.527 | 60.579 | N 096 | PL 96 |
499.923 | 5 | 579.577 | 68.656 | N 500 | PL 500 |
530.022 | 4 | 630.377 | 68.656 | N 530 | PL 530 |
560.019 | 4 | 649.427 | 75.006 | N 560 | PL 560 |
600.024 | 4 | 700.227 | 75.006 | N 600 | PL 600 |
630.022 | 4 | 730.377 | 75.006 | N 630 | PL 630 |
670.027 | 4 | 779.602 | 79.756 | N 670 | PL 670 |
710.209 | 3 | 830.402 | 90.881 | N 710 | PL 710 |
750.214 | 3 | 870.077 | 90.881 | N 750 | PL 750 |
850.214 | 3 | 979.627 | 90.881 | N 850 | PL 850 |
900.201 | 3 | 1030.427 | 100.406 | N 900 | PL 900 |