Technical datasheet
GN 3664Torque Limiting Three-Lobed Knobs / Knob Screws
Bushing
Knob Plastic, Torque Limiting Mechanism Steel
|
Catalogue
|
d1
|
d2
Thread |
d3 H7
Bore |
d5
|
d6
|
h1
|
h2
|
t min.
|
Torque %
in Nm |
|
|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
|
|
|
|
|
|
|
|
|
GN 3664-50-M6-2
|
50
|
M 6
|
-
|
13.5
|
23.6
|
42
|
11
|
11
|
2
|
63
|
|
GN 3664-50-B6-2
|
50
|
-
|
B 6
|
13.5
|
23.6
|
42
|
11
|
11
|
2
|
63
|
|
GN 3664-50-M6-3
|
50
|
M 6
|
-
|
13.5
|
23.6
|
42
|
11
|
11
|
3
|
63
|
|
GN 3664-50-B6-3
|
50
|
-
|
B 6
|
13.5
|
23.6
|
42
|
11
|
11
|
3
|
63
|
|
GN 3664-50-M6-4
|
50
|
M 6
|
-
|
13.5
|
23.6
|
42
|
11
|
11
|
4
|
63
|
|
GN 3664-50-B6-4
|
50
|
-
|
B 6
|
13.5
|
23.6
|
42
|
11
|
11
|
4
|
63
|
|
GN 3664-50-M8-2
|
50
|
M 8
|
-
|
13.5
|
23.6
|
42
|
11
|
11
|
2
|
61
|
|
GN 3664-50-B8-2
|
50
|
-
|
B 8
|
13.5
|
23.6
|
42
|
11
|
11
|
2
|
58
|
|
GN 3664-50-M8-3
|
50
|
M 8
|
-
|
13.5
|
23.6
|
42
|
11
|
11
|
3
|
61
|
|
GN 3664-50-B8-3
|
50
|
-
|
B 8
|
13.5
|
23.6
|
42
|
11
|
11
|
3
|
58
|
|
GN 3664-50-M8-4
|
50
|
M 8
|
-
|
13.5
|
23.6
|
42
|
11
|
11
|
4
|
61
|
|
GN 3664-50-B8-4
|
50
|
-
|
B 8
|
13.5
|
23.6
|
42
|
11
|
11
|
4
|
58
|
|
GN 3664-63-M8-3,2
|
63
|
M 8
|
-
|
16
|
28.1
|
47
|
13
|
14
|
3.2
|
107
|
|
GN 3664-63-B8-3,2
|
63
|
-
|
B 8
|
16
|
28.1
|
47
|
13
|
14
|
3.2
|
108
|
|
GN 3664-63-M8-4
|
63
|
M 8
|
-
|
16
|
28.1
|
47
|
13
|
14
|
4
|
107
|
|
GN 3664-63-B8-4
|
63
|
-
|
B 8
|
16
|
28.1
|
47
|
13
|
14
|
4
|
108
|
|
GN 3664-63-M8-4,7
|
63
|
M 8
|
-
|
16
|
28.1
|
47
|
13
|
14
|
4.7
|
107
|
|
GN 3664-63-B8-4,7
|
63
|
-
|
B 8
|
16
|
28.1
|
47
|
13
|
14
|
4.7
|
108
|
|
GN 3664-63-M10-3,2
|
63
|
M 10
|
-
|
16
|
28.1
|
47
|
13
|
14
|
3.2
|
104
|
|
GN 3664-63-B10-3,2
|
63
|
-
|
B 10
|
16
|
28.1
|
47
|
13
|
14
|
3.2
|
104
|
|
GN 3664-63-M10-4
|
63
|
M 10
|
-
|
16
|
28.1
|
47
|
13
|
14
|
4
|
104
|
|
GN 3664-63-B10-4
|
63
|
-
|
B 10
|
16
|
28.1
|
47
|
13
|
14
|
4
|
104
|
|
GN 3664-63-M10-4,7
|
63
|
M 10
|
-
|
16
|
28.1
|
47
|
13
|
14
|
4.7
|
104
|
|
GN 3664-63-B10-4,7
|
63
|
-
|
B 10
|
16
|
28.1
|
47
|
13
|
14
|
4.7
|
104
|
|
GN 3664-80-M10-4
|
80
|
M 10
|
-
|
19
|
34.1
|
55
|
15.5
|
17
|
4
|
174
|
|
GN 3664-80-B10-4
|
80
|
-
|
B 10
|
19
|
34.1
|
55
|
15.5
|
17
|
4
|
175
|
|
GN 3664-80-M10-5,5
|
80
|
M 10
|
-
|
19
|
34.1
|
55
|
15.5
|
17
|
5.5
|
174
|
|
GN 3664-80-B10-5,5
|
80
|
-
|
B 10
|
19
|
34.1
|
55
|
15.5
|
17
|
5.5
|
175
|
|
GN 3664-80-M10-7,5
|
80
|
M 10
|
-
|
19
|
34.1
|
55
|
15.5
|
17
|
7.5
|
174
|
|
GN 3664-80-B10-7,5
|
80
|
-
|
B 10
|
19
|
34.1
|
55
|
15.5
|
17
|
7.5
|
175
|
|
GN 3664-80-M12-4
|
80
|
M 12
|
-
|
19
|
34.1
|
55
|
15.5
|
17
|
4
|
169
|
|
GN 3664-80-B12-4
|
80
|
-
|
B 12
|
19
|
34.1
|
55
|
15.5
|
17
|
4
|
169
|
|
GN 3664-80-M12-5,5
|
80
|
M 12
|
-
|
19
|
34.1
|
55
|
15.5
|
17
|
5.5
|
169
|
|
GN 3664-80-B12-5,5
|
80
|
-
|
B 12
|
19
|
34.1
|
55
|
15.5
|
17
|
5.5
|
169
|
|
GN 3664-80-M12-7,5
|
80
|
M 12
|
-
|
19
|
34.1
|
55
|
15.5
|
17
|
7.5
|
169
|
|
GN 3664-80-B12-7,5
|
80
|
-
|
B 12
|
19
|
34.1
|
55
|
15.5
|
17
|
7.5
|
169
|
Knob
Knob
Plastic, Polyamide (PA-HP)
- Glass fiber reinforced
- Black, matte finish
Torque limiting mechanism
Torque limiting mechanism
Steel, hardened
Other parts
Other parts
Steel, blackened
Cover
Cover
Plastic, light gray
Torque limiting three-lobed knobs / screws GN 3664 are used when the manually applied torque is to be limited.
When turned clockwise, the torque mechanical system of the knurled knob triggers an „over-engagement“ as soon as the specified torque is reached. When turning counterclockwise, the mechanical system locks such that the torque is not limited. For example, when tightening, this will ensure that the maximum permissible torque is not exceeded. On the other hand, the torque necessary for releasing will always be transferred reliably.
