ø380MM Max. Diameter Firestone Style 21 W01-M58-7710 Double Convoluted Air Spring
High-performance double convoluted air spring designed for industrial applications requiring reliable air suspension solutions.
Product Specifications
Manufacturer: AIRSUSTECH
Model No.: 2H350255
Bellows Type: double convolutions
Connection Type: flange connection
Material: rubber and steel
Durability: high
Condition: 100% new
Equivalent OEM Numbers
- Model 21 BR 89457
- Model 21BR89457
- Model 21BR
- Model 89457
- Girelli 20.38.0053.0
- Girelli 203800530
- Austeras 99381024
- Ive-co 8194818
- Viberti 128118102
- Campana 05.050.0400
- Cardi 58053300
- B.P.W. 0.41.04.004.0
- B.P.W. 041040040
- B.P.W. 0 41 04 004 0
- Tras car 03003000020
- Ror - meritor 21225697
- Kaessbohrer 4731005000
- Gart 274.2.210
- Gart 2742210
- Gart 274 2 210
- Firestone W01-M58-7710
- Firestone WO1-M58-7710
- Firestone W01M587710
- Firestone WO1M587710
- Firestone W01 M58 7710
- Firestone WO1 M58 7710
Technical Dimensions
| Nominal Diameter | ø250 MM |
| Minimum Height | 90 MM |
| Maximum Height | 295 MM |
| Total Stroke | 205 MM |
| PCD | ø287 MM |
| Design Height | 255 MM |
| Flange Ring Diameter | ø309 MM |
| Max. Outer Diameter at 0.7MPa | ø380 MM |
| Mounting Bolts | 12-M10 |
Technical Performance Data
| Load (kg) |
Installation Height (mm) |
0.2 MPa |
0.3 MPa |
0.4 MPa |
0.5 MPa |
0.6 MPa |
0.7 MPa |
0.8 MPa |
| 90 | 1814 | 2722 | 3628 | 4538 | 5474 | 6381 | 7318 |
| 156 | 1567 | 2355 | 3135 | 3944 | 4799 | 5605 | 6416 |
| 222 | 1249 | 1877 | 2532 | 3187 | 3890 | 4570 | 5237 |
| 255 | 1095 | 1679 | 2269 | 2851 | 3480 | 4098 | 4726 |
| 295 | 892 | 1376 | 1883 | 2384 | 2902 | 3430 | 4000 |
| 320 | 737 | 1162 | 1589 | 2010 | 2467 | 2920 | 3431 |
Stiffness and Frequency at Design Height
| Parameter |
0.2 MPa |
0.3 MPa |
0.4 MPa |
0.5 MPa |
0.6 MPa |
0.7 MPa |
0.8 MPa |
| Vertical Stiffness (Kg/cm) |
121 |
160 |
215 |
265 |
305 |
342 |
384 |
| Inherent Frequency (Hz) |
1.66 |
1.55 |
1.54 |
1.53 |
1.48 |
1.45 |
1.43 |
| Inherent Frequency (cpm) |
100 |
93 |
92 |
92 |
89 |
87 |
86 |
Product Images
Available Air Spring Types
Manufacturing Capabilities