GN 638-STBall jointed levelling feet

Steel, Thrust pad Plastic

Steel / Stainless Steel

GN 638-ST

Catalogue
d1
d2
l1
d3
l2
A/F
s3
Static load
in kN
x min.
GN 638-15-M6-26-ST
15
M 6
26
4.5
7.6
3
3.5
5
GN 638-15-M6-36-ST
15
M 6
36
4.5
7.6
3
3.5
6
GN 638-15-M6-46-ST
15
M 6
46
4.5
7.6
3
3.5
7
GN 638-15-M8-20-ST
15
M 8
20
6.1
7.6
4
3.5
6
GN 638-15-M8-35-ST
15
M 8
35
6.1
7.6
4
3.5
11
GN 638-15-M8-45-ST
15
M 8
45
6.1
7.6
4
3.5
13
GN 638-15-M8-58-ST
15
M 8
58
6.1
7.6
4
3.5
18
GN 638-18-M6-26-ST
18
M 6
26
4.5
9.2
3
3.5
7
GN 638-18-M6-36-ST
18
M 6
36
4.5
9.2
3
3.5
9
GN 638-18-M6-46-ST
18
M 6
46
4.5
9.2
3
3.5
11
GN 638-18-M8-20-ST
18
M 8
20
6.1
9.2
4
3.5
7
GN 638-18-M8-35-ST
18
M 8
35
6.1
9.2
4
3.5
10
GN 638-18-M8-45-ST
18
M 8
45
6.1
9.2
4
3.5
17
GN 638-18-M8-58-ST
18
M 8
58
6.1
9.2
4
3.5
19
GN 638-18-M10-34-ST
18
M 10
34
7.8
9.2
5
3.5
17
GN 638-18-M10-44-ST
18
M 10
44
7.8
9.2
5
3.5
24
GN 638-18-M10-57-ST
18
M 10
57
7.8
9.2
5
3.5
29
GN 638-18-M10-74-ST
18
M 10
74
7.8
9.2
5
3.5
37
GN 638-21-M6-26-ST
21
M 6
26
4.5
10
3
3.5
7
GN 638-21-M6-36-ST
21
M 6
36
4.5
10
3
3.5
10
GN 638-21-M6-46-ST
21
M 6
46
4.5
10
3
3.5
11
GN 638-21-M8-20-ST
21
M 8
20
6.1
10
4
3.5
10
GN 638-21-M8-35-ST
21
M 8
35
6.1
10
4
3.5
13
GN 638-21-M8-45-ST
21
M 8
45
6.1
10
4
3.5
16
GN 638-21-M8-58-ST
21
M 8
58
6.1
10
4
3.5
20
GN 638-21-M10-34-ST
21
M 10
34
7.8
10
5
3.5
19
GN 638-21-M10-44-ST
21
M 10
44
7.8
10
5
3.5
25
GN 638-21-M10-57-ST
21
M 10
57
7.8
10
5
3.5
31
GN 638-21-M10-74-ST
21
M 10
74
7.8
10
5
3.5
40
GN 638-21-M12-34-ST
21
M 12
34
9.4
10
6
3.5
23
GN 638-21-M12-57-ST
21
M 12
57
9.4
10
6
3.5
44
GN 638-21-M12-74-ST
21
M 12
74
9.4
10
6
3.5
56
GN 638-21-M12-94-ST
21
M 12
94
9.4
10
6
3.5
67
GN 638-25-M6-26-ST
25
M 6
26
4.5
10.5
3
3.5
10
GN 638-25-M6-36-ST
25
M 6
36
4.5
10.5
3
3.5
11
GN 638-25-M6-46-ST
25
M 6
46
4.5
10.5
3
3.5
11
GN 638-25-M8-20-ST
25
M 8
20
6.1
10.5
4
3.5
9
GN 638-25-M8-35-ST
25
M 8
35
6.1
10.5
4
3.5
14
GN 638-25-M8-45-ST
25
M 8
45
6.1
10.5
4
3.5
16
GN 638-25-M8-58-ST
25
M 8
58
6.1
10.5
4
3.5
20
GN 638-25-M10-34-ST
25
M 10
34
7.8
10.5
5
3.5
21
GN 638-25-M10-44-ST
25
M 10
44
7.8
10.5
5
3.5
25
GN 638-25-M10-57-ST
25
M 10
57
7.8
10.5
5
3.5
30
GN 638-25-M10-74-ST
25
M 10
74
7.8
10.5
5
3.5
38
GN 638-25-M12-34-ST
25
M 12
34
9.4
10.5
6
3.5
25
GN 638-25-M12-57-ST
25
M 12
57
9.4
10.5
6
3.5
44
GN 638-25-M12-74-ST
25
M 12
74
9.4
10.5
6
3.5
55
GN 638-25-M12-94-ST
25
M 12
94
9.4
10.5
6
3.5
73
GN 638-32-M6-26-ST
32
M 6
26
4.5
11
3
3.5
8
GN 638-32-M6-36-ST
32
M 6
36
4.5
11
3
3.5
11
GN 638-32-M6-46-ST
32
M 6
46
4.5
11
3
3.5
11
GN 638-32-M8-20-ST
32
M 8
20
6.1
11
4
3.5
13
GN 638-32-M8-35-ST
32
M 8
35
6.1
11
4
3.5
16
GN 638-32-M8-45-ST
32
M 8
45
6.1
11
4
3.5
20
GN 638-32-M8-58-ST
32
M 8
58
6.1
11
4
3.5
23
GN 638-32-M10-34-ST
32
M 10
34
7.8
11
5
3.5
20
GN 638-32-M10-44-ST
32
M 10
44
7.8
11
5
5
3.5
3.5
20
GN 638-32-M10-57-ST
32
M 10
57
7.8
11
5
3.5
32
GN 638-32-M10-74-ST
32
M 10
74
7.8
11
5
3.5
40
GN 638-32-M12-34-ST
32
M 12
34
9.4
11
6
3.5
20
GN 638-32-M12-57-ST
32
M 12
57
9.4
11
6
3.5
40
GN 638-32-M12-74-ST
32
M 12
74
9.4
11
6
3.5
53
GN 638-32-M12-94-ST
32
M 12
94
9.4
11
6
3.5
70
GN 638-40-M8-20-ST
40
M 8
20
6.1
13
4
3.5
15
GN 638-40-M8-35-ST
40
M 8
35
6.1
13
4
3.5
20
GN 638-40-M8-45-ST
40
M 8
45
6.1
13
4
3.5
22
GN 638-40-M8-58-ST
40
M 8
58
6.1
13
4
3.5
22
GN 638-40-M10-34-ST
40
M 10
34
7.8
13
5
3.5
25
GN 638-40-M10-44-ST
40
M 10
44
7.8
13
5
3.5
30
GN 638-40-M10-57-ST
40
M 10
57
7.8
13
5
3.5
38
GN 638-40-M10-74-ST
40
M 10
74
7.8
13
5
3.5
46
GN 638-40-M12-34-ST
40
M 12
34
9.4
13
6
3.5
35
GN 638-40-M12-57-ST
40
M 12
57
9.4
13
6
6
3.5
3.5
50
GN 638-40-M12-74-ST
40
M 12
74
9.4
13
6
3.5
60
GN 638-40-M12-94-ST
40
M 12
94
9.4
13
6
3.5
73
GN 638-50-M8-20-ST
50
M 8
20
15.5
15
4
3.5
22
GN 638-50-M8-35-ST
50
M 8
35
15.5
15
4
3.5
28
GN 638-50-M8-45-ST
50
M 8
45
15.5
15
4
3.5
32
GN 638-50-M8-58-ST
50
M 8
58
15.5
15
4
3.5
37
GN 638-50-M10-34-ST
50
M 10
34
15.5
15
5
3.5
26
GN 638-50-M10-44-ST
50
M 10
44
15.5
15
5
3.5
41
GN 638-50-M10-57-ST
50
M 10
57
15.5
15
5
3.5
49
GN 638-50-M10-74-ST
50
M 10
74
15.5
15
5
3.5
59
GN 638-50-M12-34-ST
50
M 12
34
15.5
15
6
3.5
42
GN 638-50-M12-57-ST
50
M 12
57
15.5
15
6
3.5
62
GN 638-50-M12-74-ST
50
M 12
74
15.5
15
6
3.5
77
GN 638-50-M12-94-ST
50
M 12
94
15.5
15
6
3.5
95

Version in Steel ST

Thrust pad

Plastic (Polyacetal POM)

  • temperature resistant up to 80 °C
  • black, matt

Threaded stud

Steel, blackened

Tensile strength class 5.8

Version in Stainless Steel NI

Thrust pad

Plastic (Polyacetal POM)

  • temperature resistant up to 80 °C
  • black, matt

Threaded stud

Stainless Steel AISI 303

Version completely in Stainless Steel NV

Thrust pad

Stainless Steel AISI 303

  • O-ring rubber FPM (Viton®)
  • temperature resistant up to 200 °C

Threaded stud

Stainless Steel AISI 303

Ball pointed levelling feet GN 638 are suitable for universal use. The designs with plastic thrust pad prevent damage to sensitive surfaces. For applications in aggressive environments or higher loads, the stainless steel versions are to be preferred.

The ball diameter d3 is smaller than the core diameter of the thread, with the effect that the screw can be screwed in on the ball side. The ball end can easily be pressed into the thrust pad and removed again, if necessary.

Details regarding the static load capacity have been established by a series of tests but are indicative only. For these tests the loads have been placed vertically and centrally over the stud. At the measured load of 3.5 kN there was no remaining deformation visible on the thrust pad nor was there any breakage.

Related products
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GN 631

Thrust pads for Grub screws GN 632.1 / GN 632.5
Stainless Steel-Thrust pads

GN 631.5

Stainless Steel-Thrust pads for Grub screws GN 632.5
Grub screws

GN 632.1

Grub screws with ball point for Thrust pads GN 631 / GN 631.5
Stainless Steel-Grub screws

GN 632.5

Stainless Steel-Grub screws with ball point for Thrust pads GN 631 / GN 631.5