Torque Limiting Three-Lobed Knobs GN 3664

Standard Sheet GN 3664 Print This Page ISO Fundamental Tolerances Plastic Characteristics

Product description

Torque limiting three-lobed knobs GN 3664 are used when the manually applied torque is to be set or limited.

When turned clockwise, the torque mechanism of the three-lobed knob triggers an “over-engagement” as soon as the specified torque is reached. When turned counter-clockwise, the mechanism locks up to disable any torque limiting. This ensures that a maximum permissible torque is not exceeded, e.g. when tightening, while the torque required for loosening is always transmitted reliably.

Specification

Knob
Plastic, Polyamide (PA-HP)

Glass fiber reinforced
Black, matte finish

Torque mechanism
Steel, hardened

Other components
Steel, blackened finish

Cover
Plastic, light gray

RoHS

On request

Other dimensions of plain bore or tapped inserts as per GN 300
Other torques
Torque limiting turning counter-clockwise, or turning counter-clockwise and clockwise

Part Number	d₁	d₂ Thread	d₃ H7 Bore	d₅	d₆	h₁	h₂	t min.	Torque ±10% in Nm

3664-50-M6-2	1.97	M 6	-	0.53	0.93	1.65	0.43	0.43	2
3664-50-B6-2	1.97	-	B 6 H7	0.53	0.93	1.65	0.43	0.43	2
3664-50-M6-3	1.97	M 6	-	0.53	0.93	1.65	0.43	0.43	3
3664-50-B6-3	1.97	-	B 6 H7	0.53	0.93	1.65	0.43	0.43	3
3664-50-M6-4	1.97	M 6	-	0.53	0.93	1.65	0.43	0.43	4
3664-50-B6-4	1.97	-	B 6 H7	0.53	0.93	1.65	0.43	0.43	4
3664-50-M8-2	1.97	M 8	-	0.53	0.93	1.65	0.43	0.43	2
3664-50-B8-2	1.97	-	B 8 H7	0.53	0.93	1.65	0.43	0.43	2
3664-50-M8-3	1.97	M 8	-	0.53	0.93	1.65	0.43	0.43	3
3664-50-B8-3	1.97	-	B 8 H7	0.53	0.93	1.65	0.43	0.43	3
3664-50-M8-4	1.97	M 8	-	0.53	0.93	1.65	0.43	0.43	4
3664-50-B8-4	1.97	-	B 8 H7	0.53	0.93	1.65	0.43	0.43	4
3664-63-M8-3.2	2.48	M 8	-	0.63	1.11	1.85	0.51	0.55	3.2
3664-63-B8-3.2	2.48	-	B 8 H7	0.63	1.11	1.85	0.51	0.55	3.2
3664-63-M8-4	2.48	M 8	-	0.63	1.11	1.85	0.51	0.55	4
3664-63-B8-4	2.48	-	B 8 H7	0.63	1.11	1.85	0.51	0.55	4
3664-63-M8-4.7	2.48	M 8	-	0.63	1.11	1.85	0.51	0.55	4.7
3664-63-B8-4.7	2.48	-	B 8 H7	0.63	1.11	1.85	0.51	0.55	4.7
3664-63-M10-3.2	2.48	M 10	-	0.63	1.11	1.85	0.51	0.55	3.2
3664-63-B10-3.2	2.48	-	B 10 H7	0.63	1.11	1.85	0.51	0.55	3.2
3664-63-M10-4	2.48	M 10	-	0.63	1.11	1.85	0.51	0.55	4
3664-63-B10-4	2.48	-	B 10 H7	0.63	1.11	1.85	0.51	0.55	4
3664-63-M10-4.7	2.48	M 10	-	0.63	1.11	1.85	0.51	0.55	4.7
3664-63-B10-4.7	2.48	-	B 10 H7	0.63	1.11	1.85	0.51	0.55	4.7
3664-80-M10-4	3.15	M 10	-	0.75	1.34	2.17	0.61	0.67	4
3664-80-B10-4	3.15	-	B 10 H7	0.75	1.34	2.17	0.61	0.67	4
3664-80-M10-5.5	3.15	M 10	-	0.75	1.34	2.17	0.61	0.67	5.5
3664-80-B10-5.5	3.15	-	B 10 H7	0.75	1.34	2.17	0.61	0.67	5.5
3664-80-M10-7.5	3.15	M 10	-	0.75	1.34	2.17	0.61	0.67	7.5
3664-80-B10-7.5	3.15	-	B 10 H7	0.75	1.34	2.17	0.61	0.67	7.5
3664-80-M12-4	3.15	M 12	-	0.75	1.34	2.17	0.61	0.67	4
3664-80-B12-4	3.15	-	B 12 H7	0.75	1.34	2.17	0.61	0.67	4
3664-80-M12-5.5	3.15	M 12	-	0.75	1.34	2.17	0.61	0.67	5.5
3664-80-B12-5.5	3.15	-	B 12 H7	0.75	1.34	2.17	0.61	0.67	5.5
3664-80-M12-7.5	3.15	M 12	-	0.75	1.34	2.17	0.61	0.67	7.5
3664-80-B12-7.5	3.15	-	B 12 H7	0.75	1.34	2.17	0.61	0.67	7.5

Part Number

d₁

d₂
Thread

d₃ H7
Bore

d₅

d₆

h₁

h₂

t
min.

Torque ±10%
in Nm

3664-50-M6-2

1.97

M 6

0.53

0.93

1.65

0.43

3664-50-B6-2

1.97

B 6 H7

0.53

0.93

1.65

0.43

3664-50-M6-3

1.97

M 6

0.53

0.93

1.65

0.43

3664-50-B6-3

1.97

B 6 H7

0.53

0.93

1.65

0.43

3664-50-M6-4

1.97

M 6

0.53

0.93

1.65

0.43

3664-50-B6-4

1.97

B 6 H7

0.53

0.93

1.65

0.43

3664-50-M8-2

1.97

M 8

0.53

0.93

1.65

0.43

3664-50-B8-2

1.97

B 8 H7

0.53

0.93

1.65

0.43

3664-50-M8-3

1.97

M 8

0.53

0.93

1.65

0.43

3664-50-B8-3

1.97

B 8 H7

0.53

0.93

1.65

0.43

3664-50-M8-4

1.97

M 8

0.53

0.93

1.65

0.43

3664-50-B8-4

1.97

B 8 H7

0.53

0.93

1.65

0.43

3664-63-M8-3.2

2.48

M 8

0.63

1.11

1.85

0.51

0.55

3.2

3664-63-B8-3.2

2.48

B 8 H7

0.63

1.11

1.85

0.51

0.55

3.2

3664-63-M8-4

2.48

M 8

0.63

1.11

1.85

0.51

0.55

3664-63-B8-4

2.48

B 8 H7

0.63

1.11

1.85

0.51

0.55

3664-63-M8-4.7

2.48

M 8

0.63

1.11

1.85

0.51

0.55

4.7

3664-63-B8-4.7

2.48

B 8 H7

0.63

1.11

1.85

0.51

0.55

4.7

3664-63-M10-3.2

2.48

M 10

0.63

1.11

1.85

0.51

0.55

3.2

3664-63-B10-3.2

2.48

B 10 H7

0.63

1.11

1.85

0.51

0.55

3.2

3664-63-M10-4

2.48

M 10

0.63

1.11

1.85

0.51

0.55

3664-63-B10-4

2.48

B 10 H7

0.63

1.11

1.85

0.51

0.55

3664-63-M10-4.7

2.48

M 10

0.63

1.11

1.85

0.51

0.55

4.7

3664-63-B10-4.7

2.48

B 10 H7

0.63

1.11

1.85

0.51

0.55

4.7

3664-80-M10-4

3.15

M 10

0.75

1.34

2.17

0.61

0.67

3664-80-B10-4

3.15

B 10 H7

0.75

1.34

2.17

0.61

0.67

3664-80-M10-5.5

3.15

M 10

0.75

1.34

2.17

0.61

0.67

5.5

3664-80-B10-5.5

3.15

B 10 H7

0.75

1.34

2.17

0.61

0.67

5.5

3664-80-M10-7.5

3.15

M 10

0.75

1.34

2.17

0.61

0.67

7.5

3664-80-B10-7.5

3.15

B 10 H7

0.75

1.34

2.17

0.61

0.67

7.5

3664-80-M12-4

3.15

M 12

0.75

1.34

2.17

0.61

0.67

3664-80-B12-4

3.15

B 12 H7

0.75

1.34

2.17

0.61

0.67

3664-80-M12-5.5

3.15

M 12

0.75

1.34

2.17

0.61

0.67

5.5

3664-80-B12-5.5

3.15

B 12 H7

0.75

1.34

2.17

0.61

0.67

5.5

3664-80-M12-7.5

3.15

M 12

0.75

1.34

2.17

0.61

0.67

7.5

3664-80-B12-7.5

3.15

B 12 H7

0.75

1.34

2.17

0.61

0.67

7.5

d₁	d₂ Thread	d₃ H7 Bore	d₅	d₆	h₁	h₂	t min.	Torque ±10% in Nm

1.97	M 6	B 6	0.53	0.93	1.65	0.43	0.43	2	3	4
1.97	M 8	B 8	0.53	0.93	1.65	0.43	0.43	2	3	4
2.48	M 8	B 8	0.63	1.11	1.85	0.51	0.55	3.2	4	4.7
2.48	M 10	B 10	0.63	1.11	1.85	0.51	0.55	3.2	4	4.7
3.15	M 10	B 10	0.75	1.34	2.17	0.61	0.67	4	5.5	7.5
3.15	M 12	B 12	0.75	1.34	2.17	0.61	0.67	4	5.5	7.5

d₁

d₂
Thread

d₃ H7
Bore

d₅

d₆

h₁

h₂

t
min.

Torque ±10%
in Nm

1.97

M 6

B 6

0.53

0.93

1.65

0.43

1.97

M 8

B 8

0.53

0.93

1.65

0.43

2.48

M 8

B 8

0.63

1.11

1.85

0.51

0.55

3.2

4.7

2.48

M 10

B 10

0.63

1.11

1.85

0.51

0.55

3.2

4.7

3.15

M 10

B 10

0.75

1.34

2.17

0.61

0.67

5.5

7.5

3.15

M 12

B 12

0.75

1.34

2.17

0.61

0.67

5.5

7.5

Selected Part

Part Number

Total (net)

$51.77

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Please note our quantity discounts (US Dollars).

Min	Max	Price
1	49	$51.77
50	99	$47.45
100	249	$43.14
≥ 250		$38.83

Prop 65: Not compliant

WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov

RoHS: Compliant

This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).

Weight: 0.138 lbs

If weight is not listed, please contact our Sales Department for additional information regarding weight.
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