Specification
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
Information
Leveling feet GN 21 will be delivered mounted and are not removable.
Load Rating of Leveling Feet
| 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 pad) 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
| 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 |
