Guangzhou Guomat Air Spring Co., Ltd.
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One Convoluted Centered Air Inlet Industrial Shock Absorber Cross Goodyear 1B9-202 578 91 3 201 Air Springs
Refer Number
Goodyear: 1B9-202
Goodyear: 1B9202
Goodyear: 1B9202
Goodyear: 578 91 3 201
Goodyear: 578-91-3-201
Goodyear: 578913201
1B9202-3/4 Specifications and Tecnical Data
1. Nut/blind nut Top plate screw (nut) teeth: 2 x M8×1.25
Top plate screw center distance: 70mm
2. Bottom cover plate screw (nut) teeth:2 x M8×1.25
Bottom plate screw center distance : 70mm
2. Air hole/air inlet/air fitting air hole/air inlet: G3/4 and the center distance between nut and air inlet: 35mm
3. Top plate diameter (width): 160 mm, bottom cover diameter (width): 160 mm bell-shaped rubber bellows rubber bellows diameter: 222 mm
4. Height: 128mm
5. Bumper block/bumper block without bumper
6. Belt loop/Girdle Ring/Girdle Hoop: without belt loop/girdle ring/girdle hoop
Min. pressure: 0 bar
Return force to min.height: ≤200N
Overall weight with clamped plates: 2.3kg
Vibration isolation - dynamic characteristic values
Design Height H: recommended 110mm, minimum 90mm
| Pressure p[bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V[l] |
| Force(Load) [KN] | 5.5 | 7.5 | 9.6 | 11.9 | 14.0 | 15.7 | 2.7 |
| Spring rate [N/cm] | 1500 | 2050 | 2600 | 3150 | 3700 | 4250 | |
| Natural frequency [Hz] | 2.6 | 2.6 | 2.6 | 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 | 4.5 | 6.2 | 8.2 | 10.4 | 12.1 | 13.8 | 2.8 |
| 110 | 5.5 | 7.5 | 9.6 | 11.9 | 14.0 | 15.7 | 2.7 | |
| 100 | 6.3 | 8.6 | 11.0 | 13.4 | 15.5 | 17.5 | 2.3 | |
| 90 | 7.0 | 9.4 | 12.1 | 14.6 | 17.0 | 19.2 | 2.2 | |
| 80 | 7.6 | 10.2 | 13.0 | 15.7 | 18.2 | 20.6 | 1.8 | |
| 70 | 8.1 | 10.9 | 13.6 | 16.5 | 19.3 | 21.9 | 1.6 | |
| 60 | 8.5 | 11.3 | 14.2 | 17.1 | 20.1 | 23.0 | 1.3 | |
Packing Details
| Model Size | Net Weight | Gross Weight | Box Size | Quantity |
| 1B9202-3/4 | 2.472kg | 5.324kg | 24*24*24cm | 2 |
Common faults of air springs
1. Air spring skew, eccentric contact of cushion
The air spring is not installed correctly, and the air spring is skewed longitudinally.
The suspension was installed incorrectly and the air springs were skewed laterally.
The positioning adjustment block on the frame bracket is welded or the rubber bushing in the pin ear is damaged, causing the suspension to drift.
2. Air sac
Premature aging due to grease, etc. on the airbag.
normal aging
3. Decreased elasticity
The water vapor in the air storage tank was not released in time, and more and more water accumulated in the air spring.
The picture of 1B9202-3/4 Air Shocks
