LW.A - Maschinenfüße mit Schwingungsdämpfung -Fußteller und Verstellspindel (Teilenummern - CAD Download)
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LW.A / Vibration-damping Levelling Elements, Steel Base and Stem
Features
- malfunctioning and reduction of the machine lifespan and/or of the adjacent ones;
- damage to operator's health;
- noise.
Material
Base
Damping Element
Levelling Plate
Packing Ring
Threaded Stem
Nut and Washer
Specifications
| Code | Description | D | d | D1 | L | L1 min÷max | l | l1 | d2 | s | Max. limit static load [N] | Stiffness [N/mm] | Max. deflection [mm] | Weight |
| 415111 | LW.A-80-M12x1.25x120 | 80 | M12 x 1.25 | 72 | 133 | 35÷46 | 18.5 | 32 | 60 | 7x7 | 5000 | 2500 | 2 | 530 |
| 415121 | LW.A-120-M16x1.5x130 | 120 | M16 x 1.5 | 109 | 144 | 40÷51 | 23 | 36.5 | 80 | 9x9 | 10000 | 4000 | 2.5 | 1200 |
| 415131 | LW.A-160-M20x1.5x170 | 160 | M20 x 1.5 | 150 | 188 | 50÷63 | 29 | 43.5 | 130 | 12x12 | 20000 | 9000 | 2.2 | 2650 |
| 415141 | LW.A-200-M20x1.5x170 | 200 | M20 x 1.5 | 186 | 198 | 60÷73 | 36 | 54.5 | 130 | 12x12 | 40000 | 15000 | 2.7 | 4500 |
Assembly Instructions
- Turn the square end of the stem to take the levelling plate in contact with the machine thus obtaining the levelling required. Then lock with nut and washer (fig.2)
Technical Data and Guidelines for the Choice
- disturbing frequency: the frequency of the disturbing vibration produced by a on-duty machine. In general, it is obtained by the number of rotations of the engine [Hz=r.p.m./60];
- the load applied to every single vibration-damping element [N];
- the isolation degree required [%];
- the deflection value of the vibration-damping element under a given load [mm];
- the rigidity, that is to say the load that applied to the vibration-damping element produces a deflection of 1.0 mm [N/mm].
2. How to choose the vibration-damping element:
- with reference to the diagram for checking the isolation degree, intersect the disturbing frequency value with the isolation degree required (each isolation degree corresponds to a line in the diagram) and define the deflection [in mm];
- divide the load applied onto the vibration-damping element by the deflection value to obtain the required rigidity of the vibration-damping element;
- compare the rigidity obtained with the rigidity shown in the table and choose the vibration-damping element which presents the nearest value (lower) to the calculated one.
3. Check:
- the deflection of the vibration-damping element chosen can be obtained in the graph on the basis of the load;
- intersect the disturbing frequency value with the vibration-damping element deflection value in the diagram to obtain the isolation degree offered by the vibration-damping element chosen;
- compare the obtained value with the isolation degree required.
4. Example:
Conditions of use: disturbing frequency = 50 Hz (3,000 r.p.m.); load applied to every levelling element = 4,000 N; a 80% isolation degree is required;
- diagram shows that with a 50 Hz disturbing frequency and an isolation degree of 80%, the deflection obtained is 0.6 mm;
- divide the load applied by the deflection obtained to define the rigidity required, which is 4,000/0.6= 6,666 N/mm;
- compare the rigidity value obtained (6,666 N/mm) with the values reported in the table. This value is within the rigidity value reported in the table for LW.A-120 (4,000 N/mm) and LW.A-160 (9,000 N/mm). Choose the vibration-damping element with the lower value that is LW.A-120.
For a further check:
- graph shows that LW.A-120 (4,000 N/mm) deflection is 1mm.
- by intersecting the deflection value with the disturbing frequency of 50 Hz in the diagram, the isolation degree obtained is 90%.
This value is even greater than the required one; your choice has proved to be correct.
Teilenummer
|
|---|
| 415111 |
| 415121 |
| 415131 |
| 415141 |
| Teilenummer |
Standard-Stückpreis
| Mindestbestellmenge | Mengenrabatt | D | D1 | d | d2 | L | l | l1 | L1 min÷max | s | Max. Ruhebelastung (N) | Max. Dämpfung (mm) | Steifheit (N/mm) | Gewindeschraube | Code | Beschreibung | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
41.23 € | 1 | Verfügbar | 25 Arbeitstage | 80 | 72 | M12x1.25 | 60 | 133 | 18.5 | 32 | 35÷46 | 7x7 | 5000 | 2 | 2500 | M12 | 415111 | LW.A-80-M12x1.25x120 | |
65.58 € | 1 | Verfügbar | 4 Arbeitstage | 120 | 109 | M16x1.5 | 80 | 144 | 23 | 36.5 | 40÷51 | 9x9 | 10000 | 2.5 | 4000 | M16 | 415121 | LW.A-120-M16x1.5x130 | |
112.92 € | 1 | Verfügbar | 1 Arbeitstag | 160 | 150 | M20x1.5 | 130 | 188 | 29 | 43.5 | 50÷63 | 12x12 | 20000 | 2.2 | 9000 | M20 | 415131 | LW.A-160-M20x1.5x170 | |
196.64 € | 1 | Verfügbar | 1 Arbeitstag | 200 | 186 | M20x1.5 | 130 | 198 | 36 | 54.5 | 60÷73 | 12x12 | 40000 | 2.7 | 15000 | M20 | 415141 | LW.A-200-M20x1.5x170 |
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Grundlegende Informationen
| Werkstoff | Gummi - Stahl |
|---|
Konfigurieren
Basiseigenschaften
-
D
- 80
- 120
- 160
- 200
-
D1
- 72
- 109
- 150
- 186
-
d
- M12x1.25
- M16x1.5
- M20x1.5
-
d2
- 60
- 80
- 130
-
L
- 133
- 144
- 188
- 198
-
l
- 18.5
- 23
- 29
- 36
-
l1
- 32
- 36.5
- 43.5
- 54.5
-
L1 min÷max
- 35÷46
- 40÷51
- 50÷63
- 60÷73
-
s
- 7x7
- 9x9
- 12x12
-
Max. Ruhebelastung(N)
- 5000
- 10000
- 20000
- 40000
-
Max. Dämpfung(mm)
- 2
- 2.2
- 2.5
- 2.7
-
Steifheit(N/mm)
- 2500
- 4000
- 9000
- 15000
-
Gewindeschraube
- M12
- M16
- M20
-
Code
- 415111
- 415121
- 415131
- 415141
-
Ausführung
- 415
-
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