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Lock nuts are essential components used to secure bearings and other mechanical parts onto a shaft or adapter sleeve. They are also commonly used for mounting bearings on tapered seats and for dismounting them from withdrawal sleeves. To ensure stability and prevent accidental loosening, these nuts are designed with locking mechanisms that engage with a keyway in the shaft or a slot in the adapter.
The locking mechanism can be either integrated into the nut itself or rely on an external device. This ensures that the components remain firmly in place under various operating conditions. These nuts are widely used in industrial and mechanical applications where precision and reliability are crucial.
Below is a detailed table showing the dimensions and specifications for different types of slotted lock nuts:
Type
Whorl
Dimensions (mm)
D6
g
D3
B
b
h
KM 00
M 10 x 0.75
10
13.5
18
4
3
2
KM 01
M 12 x 1
12
17
22
4
3
2
KM 02
M 15 x 1
15
21
25
5
4
2
KM 03
M 17 x 1
17
24
28
5
4
2
KM 04
M 20 x 1
20
26
32
6
4
2
KM / 22
M 22 x 1
22
28
34
6
4
2
KM 05
M 25 x 1.5
25
32
38
7
5
2
KM / 28
M 28 x 1.5
28
36
42
7
5
2
KM 06
M 30 x 1.5
30
38
45
7
5
2
KM / 32
M 32 x 1.5
32
40
48
8
5
2
KM 07
M 35 x 1.5
35
44
52
8
5
2
KM 08
M 40 x 1.5
40
50
58
9
6
2.5
KM 09
M 45 x 1.5
45
56
65
10
6
2.5
KM 10
M 50 x 1.5
50
61
70
11
6
2.5
KM 11
M 55 x 2
55
67
75
11
7
3
KM 12
M 60 x 2
60
73
80
11
7
3
KM 13
M 65 x 2
65
79
85
12
7
3
KM 14
M 70 x 2
70
85
92
12
8
3.5
KM 15
M 75 x 2
75
90
98
13
8
3.5
KM 16
M 80 x 2
80
95
105
15
8
3.5
KM 17
M 85 x 2
85
102
110
16
8
3.5
KM 18
M 90 x 2
90
108
120
16
10
4
KM 19
M 95 x 2
95
113
125
17
10
4
KM 20
M 100 x 2
100
120
130
18
10
4
KM 21
M 105 x 2
105
126
140
180
12
5
KM 22
M 110 x 2
110
133
145
19
12
5
KM 23
M 115 x 2
115
137
150
19
12
5
KM 24
M 120 x 2
120
138
155
20
12
5
KM 25
M 125 x 2
125
148
160
21
12
5
KM 26
M 130 x 2
130
149
165
21
12
5
KM 27
M 135 x 2
135
160
175
22
14
6
KM 28
M 140 x 2
140
160
180
22
14
6
KM 29
M 145 x 2
145
171
190
24
14
6
KM 30
M 150 x 2
150
171
195
24
14
6
KM 31
M 155 x 3
155
182
200
25
16
7
KM 32
M 160 x 3
160
182
210
25
16
7
KM 33
M 165 x 3
165
193
210
26
16
7
KM 34
M 170 x 3
170
193
220
26
16
7
KM 36
M 180 x 3
180
203
230
27
18
8
KM 38
M 190 x 3
190
214
240
28
18
8
KM 40
M 200 x 3
200
226
250
29
18
8
Stainless Steel Round Slotted Lock Nut
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