Firestone Bellow Style 131 One Convoluted Rubber Airride Air Spring
Assembly
Refer No.
W013587731,W01-358-7731, W01 358 7731, WO13587731, WO1-358-7731,
WO1 358 7731,w013587731,w01-358-7731,w01 358 7731,wo13587731,wo1-358-7731, wo1
358 7731
Bellow No. 131B Style
Tecnical Data
1. Nut/blind nut Top plate screw (nut) teeth: 2 x 3 / 8-16UNC
Top plate screw center distance: 44.5 mm
2. Bottom cover plate screw (nut) teeth: 2 x 3 / 8-16UNC
Bottom plate screw center distance : 44.5 mm
2. Air hole/air inlet/air fitting air hole/air inlet: 1/4NPTF and
the center distance between NPT nut and air inlet: 22mm
3.Top plate diameter (width): 115 mm, bottom cover diameter
(width): 115 mm, rubber bellows Max. diameter: 165 mm
4. Working stroke: Maximum 115mm to Minimum 50mm
5. Bumper block/bumper block without bumper
6. Belt loop/belt loop with belt loop: without belt loop
Min. pressure: 0 bar
Return force to min.height: ≤200N
Overall weight with clamped plates: 1.4kg
Vibration isolation - dynamic characteristic values
Design Height H: recommended 115mm, minimum 100mm
| Pressure p[bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V[l] |
| Force(Load) [KN] | 2.9 | 3.8 | 4.8 | 5.8 | 6.8 | 7.7 | 1.5 |
| Spring rate [N/cm] | 855 | 1110 | 1340 | 1590 | 1840 | 2050 |
| Natural frequency [Hz] | 2.8 | 2.7 | 2.7 | 2.6 | 2.6 | 2.6 |
Pneumatic application-static characteristic values
Force F[KN]
| Pressure p [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V [l] |
| Height H[mm] | 120 | 2.6 | 3.5 | 4.4 | 5.3 | 6.2 | 7.2 | 1.54 |
| 110 | 3.1 | 4.2 | 5.2 | 6.3 | 7.4 | 8.5 | 1.46 |
| 100 | 3.5 | 4.7 | 5.9 | 7.2 | 8.3 | 9.6 | 1.38 |
| 90 | 3.9 | 5.2 | 6.5 | 7.9 | 9.2 | 10.5 | 1.27 |
| 80 | 4.2 | 5.6 | 7.0 | 8.5 | 9.8 | 11.3 | 1.18 |
| 70 | 4.5 | 5.8 | 7.4 | 9.0 | 10.4 | 12.0 | 1.07 |
The advantage of the product:
This air spring is for damping. Its a rubber and fabric bladder
that houlds air pressure to support a load and isolate passsagers
and cargo from the shovk of motion caused by road irregularities.
As the air prressure increases, the air spring can support more
load while the spring rate increased. The larger the air spring,
the greater the maximum load it can support. Compared to
traditional springs, it is more competitive. And its advantages are
as follow:
1.The low cost,wide range of specifications.
2.The long service life, no maintenance and lubriction, without the
need for internal control rod or piston.
3.No friction effect, soft medium.
Application:
1. Mold Separator Inflatable Cushion
2. Roller Airbag
3. Airbag 3D Vibrating Table Pneumatic Tire
4. Rubber Vibrating Table Airbag
The picture of air spring:
