GN 21-XLeveling Feet

External hex with internal thread

Stainless Steel, with Turned Base Plate, without Mounting Holes

GN 21-X

Catalogue
d1
d2
l7
h1
h2
A/F 7
t
Static load
in kN
GN 21-80-M8-34-D0-X
80
M 8
34
8.5
-
14
8
17
324
GN 21-80-M8-34-D1-X
80
M 8
34
-
2
14
8
17
346
GN 21-80-M10-37-D0-X
80
M 10
37
8.5
-
14
10
17
324
GN 21-80-M10-37-D1-X
80
M 10
37
-
2
14
10
17
346
GN 21-80-M12-40-D0-X
80
M 12
40
8.5
-
17
12
17
339
GN 21-80-M12-40-D1-X
80
M 12
40
-
2
17
12
17
361
GN 21-80-M16-46-D0-X
80
M 16
46
8.5
-
22
16
17
355
GN 21-80-M16-46-D1-X
80
M 16
46
-
2
22
16
17
377
GN 21-80-M20-54-D0-X
80
M 20
54
8.5
-
27
20
28
425
GN 21-80-M20-54-D1-X
80
M 20
54
-
2
27
20
28
447
GN 21-100-M8-35-D0-X
100
M 8
35
9
-
14
8
17
494
GN 21-100-M8-35-D1-X
100
M 8
35
-
3
14
8
17
537
GN 21-100-M10-38-D0-X
100
M 10
38
9
-
14
10
17
494
GN 21-100-M10-38-D1-X
100
M 10
38
-
3
14
10
17
537
GN 21-100-M12-41-D0-X
100
M 12
41
9
-
17
12
17
509
GN 21-100-M12-41-D1-X
100
M 12
41
-
3
17
12
17
552
GN 21-100-M16-47-D0-X
100
M 16
47
9
-
22
16
17
545
GN 21-100-M16-47-D1-X
100
M 16
47
-
3
22
16
17
588
GN 21-100-M20-55-D0-X
100
M 20
55
9
-
27
20
28
607
GN 21-100-M20-55-D1-X
100
M 20
55
-
3
27
20
28
650
GN 21-120-M20-59-D0-X
120
M 20
59
12
-
27
20
28
960
GN 21-120-M20-59-D1-X
120
M 20
59
-
3.5
27
20
28
1043

Type (Foot plate)

  • Type D0: Fine turned, without rubber underlay
  • Type D1: Fine turned, with rubber underlay, inlaid, black

Version of the screw

  • Version S: Without nut, external hex at the bottom
  • Version SK: With nut, external hex at the bottom
  • Version T: Without nut, wrench flat at the bottom
  • Version TK: With nut, wrench flat at the bottom
  • Version U: Without nut, hex socket at the top and wrench flat at the bottom
  • Version UK: With nut, hex socket at the top and wrench flat at the bottom
  • Version V : Without nut, external hex at the top and wrench flat at the bottom
  • Version VK: With nut, external hex at the top and wrench flat at the bottom
  • Version W: With adjustable sleeve, covered thread and wrench flat at the bottom
  • Version X: External hex with internal thread

Base plate

Stainless Steel AISI 304

Threaded stem

Stainless Steel AISI 303

Hex nut ISO 4032

Stainless Steel AISI 304

Rubber underlay, inlaid

NBR (Perbunan®), 70 Shore A

Leveling feet GN 21 will be delivered mounted and are not removable.

 
d1d2Static load in kN----
--Versions of threaded stem----
--S / SKT / TK and U / UKV / VKWX
80M 86---17
80M 1011---17
80M 1216---17
80M 16-17212517
80M 20-28353528
80M 24-465252-
100M 86---17
100M 1011---17
100M 1216---17
100M 16-17212517
100M 20-28353528
100M 24-465252-
120M 20-28--28
120M 24-46---
120M 30-43---

At a spindle thread size M 10 and higher, the static load of the leveling feet GN 21 is limited owing to the permissible contact pressure of the adjustment spindle acting on the base plate (at a spindle strength ≥ 500 N/mm2). The values given in the table (valid for type D0 without rubber underlay) assume a clean pressure load perpendicular to the base plate. Bending and buckling stress which often occurs in practice results in a lower load-bearing capacity of the adjustment spindle and may have to be taken into account.

The details given on strength are non-binding guide values without any liability. In general, they do not constitute a warranty or quality.

The user must determine from case to case if a product is suitable for the intended purpose or use. Environmental factors may influence the stated values.

Versions of threaded stem
____logo__21_NA-33635-0______logo__21_NA-33639-0______logo__21_NA-33641-0__
S / SK: External hex at the bottom at d2 M 8, M 10, M 12T / TK: Wrench flat at the bottom at d2 M 16, M 20, M 24, M 30U / UK: Hex socket at the top and wrench flat at the bottom at d2 M 16, M 20, M 24, M 30
____logo__21_NF-33643-0______logo__21_NA-33645-0______logo__21_NA-33637-0__
V / VK: External hex at the top and wrench flat at the bottom at d2 M 16, M 20, M 24W: Covered thread and wrench flat at the bottom at d2 M 16, M 20, M 24X: External hex with internal thread at d2 M 8, M 10, M 12, M 16, M 20
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