Metric Size, Aluminum
Mounting Clamps with Swivel Ball Joint

GN 784

GN 784

RoHS Compliant

 

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Specification
Information

Housing: Aluminum, black anodized finish
Base plate and ball: Aluminum, plain finish
Adjustable hand lever (Identification no. 1): Zinc die cast, powder coated, silver, RAL 9006, textured finish
Threaded stud and retaining screw: Stainless steel, European Standard No. 1.4305 (American Standard Series 303)
Set screw (Identification no. 2): Stainless steel, European Standard No. 1.4301 (American Standard Series 304)

GN 784 mounting clamps with swivel ball joint allow precise and variable adjustment of the ball pivot within the rotation range. This is a particular advantage when adjusting scanners, cameras, lighting, monitors, etc.
Thanks to the efficient clamping mechanism, only small amounts of torque on the clamping screw result in comparatively strong clamping pressure on the ball. This force is easily applied by the clamping lever (Identification no.1).
The mounting clamp with swivel ball joint can be mounted from below with the d4 internal thread or together with the GN 784.1 flange, available as an accessory, using three through-holes from above.
For a permanent high stop torque, the contact surfaces of the balls must be kept free of grease. Exceeding the recommended tightening torque increases the securing of the mounting clamp with swivel ball joint in its end position, but may result in increased wear and potential failure of the clamping mechanism.

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For CAD download instructions, click
HERE
Type A-1, Ball with Female Thread, Clamping with Adjustable Hand Lever

Dimensions in:

millimeters
(inches)

Part Number d1 d2* d4**
d5 d6 d7 h1 h2 h3 k l2 m r1 A/F1 Recom- mended tightening torque in Nm~ Resulting stop torque on the ball in Nm~
784-39-M5-A-1-ELS
Download the CAD
39
(1.54)
M5 x .8
M8 x 1.25
24
(.94)
15
(.59)
4.5
(.18)
45
(1.77)
37.2
(1.47)
18.9
(.75)
44
(1.73)
30
(1.18)
12
(.47)
25.5
(1.00)
13
(.51)
4 16
784-39-M6-A-1-ELS
Download the CAD
39
(1.54)
M6 x 1.0 M8 x 1.25 24
(.94)
15
(.59)
4.5
(.18)
45
(1.77)
37.2
(1.47)
18.9
(.75)
44
(1.73)
30
(1.18)
12
(.47)
36.2
(1.43)
13
(.51)
4 16
784-39-M8-A-1-ELS
Download the CAD
39
(1.54)
M8 x 1.25
M8 x 1.25
24
(.94)
15
(.59)
4.5
(.18)
45
(1.77)
37.2
(1.47)
18.9
(.75)
44
(1.73)
30
(1.18)
12
(.47)
40.5
(1.59)
13
(.51)
4 16
784-49-M8-A-1-ELS
Download the CAD
49
(1.93)
M 8 x 1.25
M8 x 1.25
28
(1.10)
19.5
(.77)
4.5
(.18)
56
(2.20)
46.1
(1.81)
24
(.94)
49
(1.93)
30
(1.18)
16
(.63)
30.8
(1.21)
17
(.67)
4 20
784-49-M10-A-1-ELS
Download the CAD
49
(1.93)
M10 x 1.5
M8 x 1.25 28
(1.10)
19.5
(.77)
4.5
(.18)
56
(2.20)
46.1
(1.81)
24
(.94)
49
(1.93)
30
(1.18)
16
(.63)
51.8
(2.04)
17
(.67)
4 20
* usable depth of thread from both sides min. 1.5 x d3
** usable depth of thread from both sides min. 1.5 x d4
 
Type A-2, Ball with Female Thread, Clamping with Set Screw

Dimensions in:

millimeters
(inches)

Part Number d1 d2* d4**
d5 d6 d7 h1 h2 h3 k m r1 A/F1 A/F2 Recom- mended tightening torque in Nm~ Resulting stop torque on the ball in Nm~
784-23-M4-A-2-ELS
Download the CAD
23
(.91)
M4 x .7 M5 x .8 14
(.55)
11
(.43)
2.5
(.10)
26.6
(1.04)
21.7
(.86)
10.6
(.42)
-- 7
(.28)
17.3
(.69)
9
(.35)
2.5
(.10)
1.5 4.5
784-23-M5-A-2-ELS
Download the CAD
23
(.91)
M5 x .8 M5 x .8 14
(.55)
11
(.43)
2.5
(.10)
26.6
(1.04)
21.7
(.86)
10.6
(.42)
-- 7
(.28)
24.8
(.97)
9
(.35)
2.5
(.10)
1.5 4.5
784-31-M5-A-2-ELS
Download the CAD
31
(1.22)
M5 x .8
M6 x 1.0
18
(.71)
14
(.55)
3.5
(.14)
35.5
(1.40)
29.6
(1.16)
14.9
(.59)
-- 9
(.35)
21.5
(.85)
12
(.47)
3
(.12)
2.5 6.5
784-31-M6-A-2-ELS
Download the CAD
31
(1.22)
M6 x 1.0
M6 x 1.0
18
(.71)
14
(.55)
3.5
(.14)
35.5
(1.40)
29.6
(1.16)
14.9
(.59)
-- 9
(.35)
32.5
(1.28)
12
(.47)
3
(.12)
2.5 6.5
784-39-M5-A-2-ELS
Download the CAD
39
(1.54)
M5 x .8
M8 x 1.25
24
(.94)
15
(.59)
4.5
(.18)
45
(1.77)
37.2
(1.47)
18.9
(.75)
44
(1.73)
12
(.47)
25.5
(1.00)
13
(.51)
4
(.16)
4 16
784-39-M6-A-2-ELS
Download the CAD
39
(1.54)
M6 x 1.0 M8 x 1.25 24
(.94)
15
(.59)
4.5
(.18)
45
(1.77)
37.2
(1.47)
18.9
(.75)
44
(1.73)
12
(.47)
36.2
(1.43)
13
(.51)
4
(.16)
4 16
784-39-M8-A-2-ELS
Download the CAD
39
(1.54)
M8 x 1.25
M8 x 1.25
24
(.94)
15
(.59)
4.5
(.18)
45
(1.77)
37.2
(1.47)
18.9
(.75)
44
(1.73)
12
(.47)
40.5
(1.59)
13
(.51)
4
(.16)
4 16
784-49-M8-A-2-ELS
Download the CAD
49
(1.93)
M 8 x 1.25
M8 x 1.25
28
(1.10)
19.5
(.77)
4.5
(.18)
56
(2.20)
46.1
(1.81)
24
(.94)
49
(1.93)
16
(.63)
30.8
(1.21)
17
(.67)
4
(.16)
4 20
784-49-M10-A-2-ELS
Download the CAD
49
(1.93)
M10 x 1.5
M8 x 1.25 28
(1.10)
19.5
(.77)
4.5
(.18)
56
(2.20)
46.1
(1.81)
24
(.94)
49
(1.93)
16
(.63)
51.8
(2.04)
17
(.67)
4
(.16)
4 20
* usable depth of thread from both sides min. 1.5 x d3
** usable depth of thread from both sides min. 1.5 x d4
 
Type B-1, Ball with Male Thread, Clamping with Adjustable Hand Lever

Dimensions in:

millimeters
(inches)

Part Number d1 d3
d4**
d5 d6 d7 h1 h2 h3 k l1 l2 m r2 A/F1 Recom- mended tightening torque in Nm~ Resulting stop torque on the ball in Nm~
784-39-M6-B-1-ELS
Download the CAD
39
(1.54)
M6 x 1.0 M8 x 1.25 24
(.94)
15
(.59)
4.5
(.18)
45
(1.77)
37.2
(1.47)
18.9
(.75)
44
(1.73)
10
(.39)
30
(1.18)
12
(.47)
25.5
(1.00)
13
(.51)
4 16
784-39-M8-B-1-ELS
Download the CAD
39
(1.54)
M8 x 1.25
M8 x 1.25
24
(.94)
15
(.59)
4.5
(.18)
45
(1.77)
37.2
(1.47)
18.9
(.75)
44
(1.73)
12
(.47)
30
(1.18)
12
(.47)
25.5
(1.00)
13
(.51)
4 16
784-49-M8-B-1-ELS
Download the CAD
49
(1.93)
M8 x 1.25
M8 x 1.25
28
(1.10)
19.5
(.77)
4.5
(.18)
56
(2.20)
46.1
(1.81)
24
(.94)
49
(1.93)
12
(.47)
30
(1.18)
16
(.63)
30.8
(1.21)
17
(.67)
4 20
784-49-M10-B-1-ELS
Download the CAD
49
(1.93)
M10 x 1.5
M8 x 1.25 28
(1.10)
19.5
(.77)
4.5
(.18)
56
(2.20)
46.1
(1.81)
24
(.94)
49
(1.93)
15
(.59)
30
(1.18)
16
(.63)
30.8
(1.21)
17
(.67)
4 20
** usable depth of thread from both sides min. 1.5 x d4
 
Type B-2, Ball with Male Thread, Clamping with Set Screw

Dimensions in:

millimeters
(inches)

Part Number d1 d3
d4**
d5 d6 d7 h1 h2 h3 k l1 m r2 A/F1 A/F2 Recom- mended tightening torque in Nm~ Resulting stop torque on the ball in Nm~
784-23-M5-B-2-ELS
Download the CAD
23
(.91)
M5 x .8 M5 x .8 14
(.55)
11
(.43)
2.5
(.10)
26.6
(1.04)
21.7
(.86)
10.6
(.42)
-- 8
(.31)
7
(.28)
17.3
(.69)
9
(.35)
2.5
(.10)
1.5 4.5
784-23-M6-B-2-ELS
Download the CAD
23
(.91)
M6 x 1.0 M5 x .8 14
(.55)
11
(.43)
2.5
(.10)
26.6
(1.04)
21.7
(.86)
10.6
(.42)
-- 10
(.39)
7
(.28)
17.3
(.69)
9
(.35)
2.5
(.10)
1.5 4.5
784-31-M6-B-2-ELS
Download the CAD
31
(1.22)
M6 x 1.0
M6 x 1.0
18
(.71)
14
(.55)
3.5
(.14)
35.5
(1.40)
29.6
(1.16)
14.9
(.59)
-- 10
(.39)
9
(.35)
21.5
(.85)
12
(.47)
3
(.12)
2.5 6.5
784-31-M8-B-2-ELS
Download the CAD
31
(1.22)
M8 x 1.25
M6 x 1.0
18
(.71)
14
(.55)
3.5
(.14)
35.5
(1.40)
29.6
(1.16)
14.9
(.59)
-- 12
(.47)
9
(.35)
21.5
(.85)
12
(.47)
3
(.12)
2.5 6.5
784-39-M6-B-2-ELS
Download the CAD
39
(1.54)
M6 x 1.0 M8 x 1.25 24
(.94)
15
(.59)
4.5
(.18)
45
(1.77)
37.2
(1.47)
18.9
(.75)
44
(1.73)
10
(.39)
12
(.47)
25.5
(1.00)
13
(.51)
4
(.16)
4 16
784-39-M8-B-2-ELS
Download the CAD
39
(1.54)
M8 x 1.25
M8 x 1.25
24
(.94)
15
(.59)
4.5
(.18)
45
(1.77)
37.2
(1.47)
18.9
(.75)
44
(1.73)
12
(.47)
12
(.47)
25.5
(1.00)
13
(.51)
4
(.16)
4 16
784-49-M8-B-2-ELS
Download the CAD
49
(1.93)
M 8 x 1.25
M8 x 1.25
28
(1.10)
19.5
(.77)
4.5
(.18)
56
(2.20)
46.1
(1.81)
24
(.94)
49
(1.93)
12
(.47)
16
(.63)
30.8
(1.21)
17
(.67)
4
(.16)
4 20
784-49-M10-B-2-ELS
Download the CAD
49
(1.93)
M10 x 1.5
M8 x 1.25 28
(1.10)
19.5
(.77)
4.5
(.18)
56
(2.20)
46.1
(1.81)
24
(.94)
49
(1.93)
15
(.59)
16
(.63)
30.8
(1.21)
17
(.67)
4
(.16)
4 20
** usable depth of thread from both sides min. 1.5 x d4