Technical datasheet
GN 21-S/SKLeveling Feet
With / without nut, external hex at the bottom
Stainless Steel, with Turned Base Plate, without Mounting Holes
|
Catalogue
|
d1
|
d2
|
l1
|
h1
|
h2
|
h3
|
A/F 1
|
Static load
in kN |
|
|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
|
|
|
|
|
|
|
|
GN 21-80-M8-40-D0-SK
|
80
|
M 8
|
40
|
8.5
|
-
|
19.5
|
17
|
6
|
307
|
|
GN 21-80-M8-40-D1-SK
|
80
|
M 8
|
40
|
-
|
2
|
19.5
|
17
|
6
|
329
|
|
GN 21-80-M8-50-D0-SK
|
80
|
M 8
|
50
|
8.5
|
-
|
19.5
|
17
|
6
|
311
|
|
GN 21-80-M8-50-D1-SK
|
80
|
M 8
|
50
|
-
|
2
|
19.5
|
17
|
6
|
333
|
|
GN 21-80-M8-63-D0-SK
|
80
|
M 8
|
63
|
8.5
|
-
|
19.5
|
17
|
6
|
315
|
|
GN 21-80-M8-63-D1-SK
|
80
|
M 8
|
63
|
-
|
2
|
19.5
|
17
|
6
|
337
|
|
GN 21-80-M10-50-D0-SK
|
80
|
M 10
|
50
|
8.5
|
-
|
19.5
|
17
|
11
|
325
|
|
GN 21-80-M10-50-D1-SK
|
80
|
M 10
|
50
|
-
|
2
|
19.5
|
17
|
11
|
347
|
|
GN 21-80-M10-60-D0-SK
|
80
|
M 10
|
60
|
8.5
|
-
|
19.5
|
17
|
11
|
329
|
|
GN 21-80-M10-60-D1-SK
|
80
|
M 10
|
60
|
-
|
2
|
19.5
|
17
|
11
|
351
|
|
GN 21-80-M10-80-D0-SK
|
80
|
M 10
|
80
|
8.5
|
-
|
19.5
|
17
|
11
|
339
|
|
GN 21-80-M10-80-D1-SK
|
80
|
M 10
|
80
|
-
|
2
|
19.5
|
17
|
11
|
361
|
|
GN 21-80-M10-100-D0-SK
|
80
|
M 10
|
100
|
8.5
|
-
|
19.5
|
17
|
11
|
350
|
|
GN 21-80-M10-100-D1-SK
|
80
|
M 10
|
100
|
-
|
2
|
19.5
|
17
|
11
|
372
|
|
GN 21-80-M12-60-D0-SK
|
80
|
M 12
|
60
|
8.5
|
-
|
19.5
|
17
|
16
|
346
|
|
GN 21-80-M12-60-D1-SK
|
80
|
M 12
|
60
|
-
|
2
|
19.5
|
17
|
16
|
368
|
|
GN 21-80-M12-80-D0-SK
|
80
|
M 12
|
80
|
8.5
|
-
|
19.5
|
17
|
16
|
360
|
|
GN 21-80-M12-80-D1-SK
|
80
|
M 12
|
80
|
-
|
2
|
19.5
|
17
|
16
|
382
|
|
GN 21-80-M12-100-D0-SK
|
80
|
M 12
|
100
|
8.5
|
-
|
19.5
|
17
|
16
|
375
|
|
GN 21-80-M12-100-D1-SK
|
80
|
M 12
|
100
|
-
|
2
|
19.5
|
17
|
16
|
397
|
|
GN 21-80-M12-125-D0-SK
|
80
|
M 12
|
125
|
8.5
|
-
|
19.5
|
17
|
16
|
392
|
|
GN 21-80-M12-125-D1-SK
|
80
|
M 12
|
125
|
-
|
2
|
19.5
|
17
|
16
|
414
|
|
GN 21-100-M8-40-D0-SK
|
100
|
M 8
|
40
|
9
|
-
|
20.5
|
17
|
6
|
496
|
|
GN 21-100-M8-40-D1-SK
|
100
|
M 8
|
40
|
-
|
3
|
20.5
|
17
|
6
|
539
|
|
GN 21-100-M8-50-D0-SK
|
100
|
M 8
|
50
|
9
|
-
|
20.5
|
17
|
6
|
500
|
|
GN 21-100-M8-50-D1-SK
|
100
|
M 8
|
50
|
-
|
3
|
20.5
|
17
|
6
|
543
|
|
GN 21-100-M8-63-D0-SK
|
100
|
M 8
|
63
|
9
|
-
|
20.5
|
17
|
6
|
504
|
|
GN 21-100-M8-63-D1-SK
|
100
|
M 8
|
63
|
-
|
3
|
20.5
|
17
|
6
|
547
|
|
GN 21-100-M10-50-D0-SK
|
100
|
M 10
|
50
|
9
|
-
|
20.5
|
17
|
11
|
514
|
|
GN 21-100-M10-50-D1-SK
|
100
|
M 10
|
50
|
-
|
3
|
20.5
|
17
|
11
|
557
|
|
GN 21-100-M10-60-D0-SK
|
100
|
M 10
|
60
|
9
|
-
|
20.5
|
17
|
11
|
518
|
|
GN 21-100-M10-60-D1-SK
|
100
|
M 10
|
60
|
-
|
3
|
20.5
|
17
|
11
|
561
|
|
GN 21-100-M10-80-D0-SK
|
100
|
M 10
|
80
|
9
|
-
|
20.5
|
17
|
11
|
528
|
|
GN 21-100-M10-80-D1-SK
|
100
|
M 10
|
80
|
-
|
3
|
20.5
|
17
|
11
|
571
|
|
GN 21-100-M10-100-D0-SK
|
100
|
M 10
|
100
|
9
|
-
|
20.5
|
17
|
11
|
539
|
|
GN 21-100-M10-100-D1-SK
|
100
|
M 10
|
100
|
-
|
3
|
20.5
|
17
|
11
|
582
|
|
GN 21-100-M12-60-D0-SK
|
100
|
M 12
|
60
|
9
|
-
|
20.5
|
17
|
16
|
535
|
|
GN 21-100-M12-60-D1-SK
|
100
|
M 12
|
60
|
-
|
3
|
20.5
|
17
|
16
|
578
|
|
GN 21-100-M12-80-D0-SK
|
100
|
M 12
|
80
|
9
|
-
|
20.5
|
17
|
16
|
549
|
|
GN 21-100-M12-80-D1-SK
|
100
|
M 12
|
80
|
-
|
3
|
20.5
|
17
|
16
|
592
|
|
GN 21-100-M12-100-D0-SK
|
100
|
M 12
|
100
|
9
|
-
|
20.5
|
17
|
16
|
564
|
|
GN 21-100-M12-100-D1-SK
|
100
|
M 12
|
100
|
-
|
3
|
20.5
|
17
|
16
|
607
|
|
GN 21-100-M12-125-D0-SK
|
100
|
M 12
|
125
|
9
|
-
|
20.5
|
17
|
16
|
581
|
|
GN 21-100-M12-125-D1-SK
|
100
|
M 12
|
125
|
-
|
3
|
20.5
|
17
|
16
|
624
|
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.
| d1 | d2 | Static load in kN | - | - | - | - |
| - | - | Versions of threaded stem | - | - | - | - |
| - | - | S / SK | T / TK and U / UK | V / VK | W | X |
| 80 | M 8 | 6 | - | - | - | 17 |
| 80 | M 10 | 11 | - | - | - | 17 |
| 80 | M 12 | 16 | - | - | - | 17 |
| 80 | M 16 | - | 17 | 21 | 25 | 17 |
| 80 | M 20 | - | 28 | 35 | 35 | 28 |
| 80 | M 24 | - | 46 | 52 | 52 | - |
| 100 | M 8 | 6 | - | - | - | 17 |
| 100 | M 10 | 11 | - | - | - | 17 |
| 100 | M 12 | 16 | - | - | - | 17 |
| 100 | M 16 | - | 17 | 21 | 25 | 17 |
| 100 | M 20 | - | 28 | 35 | 35 | 28 |
| 100 | M 24 | - | 46 | 52 | 52 | - |
| 120 | M 20 | - | 28 | - | - | 28 |
| 120 | M 24 | - | 46 | - | - | - |
| 120 | M 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 | ||
 |  |  |
| S / SK: External hex at the bottom at d2 M 8, M 10, M 12 | T / TK: Wrench flat at the bottom at d2 M 16, M 20, M 24, M 30 | U / UK: Hex socket at the top and wrench flat at the bottom at d2 M 16, M 20, M 24, M 30 |
 |  |  |
| V / VK: External hex at the top and wrench flat at the bottom at d2 M 16, M 20, M 24 | W: Covered thread and wrench flat at the bottom at d2 M 16, M 20, M 24 | X: External hex with internal thread at d2 M 8, M 10, M 12, M 16, M 20 |
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