Spring Isolators VT4413 and VT4423
Product Characteristics
A couple of all metal spring isolators. The spring in high tensile steel, resilient cushion of 18/8 stainless steel wire mesh. Excellent for vibration isolation because of is very low natural frequency.
Very soft to soft isolators designed for loading in compression only.
Schrolls: aluminium
Weights for VT4413 (depending on suffix): 0.13 – 0.21 kg
Weights for VT4423 (depending on suffix): 1.20 – 1.50 kg
Maximum excitation amplitude: ± 1 mm.
Mechanical strength: 2 g
Natural frequency: 5 – 6 Hz
Amplification factor: < 5
Temperature range: -90° to +300° C.
Product Applications
Isolation of machines rotating at 600 rpm and up to 800 rpm – fans, compressors, generating sets, engines etc. with or without seismic blocks. Protection of fragile equipment from vibrations.
For machines with rotations of 800 rpm and over see our spring isolators VT4412 and VT4422.
Note
The mounts are delivered without mounting flange, which can be ordered separately. For greater static loads, use multiple element isolators (consult us).
Technical Specifications
spring-isolator-vt4413-and-vt4423-technical-specifications.xlsx
Dimensions Spring Isolator
| Ref. | D | d | H | h |
| (mm) | (mm) | (mm) | (mm) | |
| VT4413 | 50 | M10 | 60 | 50 ± 2 |
| VT4423 | 80 | M12 | 90 | 80 ± 2 |
Mounting Plate Dimensions
| Ref. | L | l | B | C | E | Thickness |
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | |
| VT4413 | 90 | 69.6 | 60 | 7 | 11 | 4 |
| VT4423 | 140 | 110 | 100 | 11 | 13 | 4 |
Load Ranges
| Suffix | Load range in daN (≈kg) | Stiffness (N/mm) | ||
| VT4413 | VT4423 | VT4413 | VT4423 | |
| -01 | 5 - 7 | 30 - 50 | 6 | 39 |
| -02 | 6 - 9 | 50 - 80 | 8 | 64 |
| -03 | 9 -14 | 80 - 125 | 11 | 108 |
| -04 | 14 - 20 | 125 - 195 | 18 | 167 |
| -05 | 20 - 30 | 195 - 310 | 27 | 265 |
| -06 | 30 - 50 | 310 - 420 | 40 | 353 |
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