FD200-19 539 Contitech Presses Convoluted Air Spring 2B9-606 Goodyear Rubber Air Bellows
Product Specification
Brand: GUOMAT
Model No.: 2B6890
Firestone: W01-358-6890 / WO1-358-6890
Firestone: W01 358 6890 /WO1 358 6890
Firestone: W013586890 / WO13586890
Firestone Style: 20
Contitech: FD200-19 539
Contitech: FD 200-19 539
Goodyear: 2B9-606
Goodyear: 2B 9-606
Goodyear: 578-92-3-211
Goodyear: 578 92 3 211
Goodyear: 578923211
Neway: 90557228
Euclid/Meritor Market: E-FS6890
2B6890 Double Convoluted Air bags Technical Data
| Nut/blind nut | Threaded hole of the bottom cover plate | 2pcsX3/8-16UNC |
| The threaded hole distance of the bottom cover plate | 89 mm |
| | The screw center distance of the top cover plate | 89mm |
| Cover plate | Top plate diameter | 160 mm |
| Diameter of the bottom cover | 160 mm |
| Bell rubber bellows | Rubber bellow max diameter | 251 mm |
| Max height | 274mm |
| Min height | 81mm |
| The Working Stroke | from 81mm to 274mm |
Core Functions of Truck Suspension Airbags
Carrying Weight: This is the most basic function. After the airbag is filled with compressed air, it expands to form an elastic body with a certain stiffness, which directly bears the weight of the vehicle and its load.
Buffering and Shock Absorption: Compressed air itself has good elasticity. When the wheel encounters bumps on the road, the airbag absorbs the impact energy by compression and expansion, significantly reducing the vibration and impact transmitted to the frame and body, and improving the ride smoothness.
Static Adjustment: By increasing or decreasing the air pressure in the airbag, the ground clearance and body height of the vehicle can be easily adjusted. This is very useful for loading/unloading cargo (convenient docking platform), connecting trailers (matching saddle height), and coping with different load conditions (maintaining stable posture).
Dynamic Adjustment: During driving, the system (usually through the height control valve) can automatically maintain the set body height. When the load increases and causes the body to sink, the height valve automatically inflates the airbag to raise the body; when the load is reduced, some air is released to lower the body. This ensures the stability of the suspension geometry and driving safety.
Stabilize vehicle posture: When turning, changing lanes or rolling, the air suspension system (usually in conjunction with a lateral stabilizer bar) can effectively suppress excessive vehicle roll and improve handling stability and safety.
Protect cargo/equipment: Excellent shock absorption performance is essential for transporting fragile cargo or precision instruments, and can effectively reduce damage during transportation.
Common Problems and Maintenance
Air leakage: The most common problem. It may be caused by the aging, cracking, or damage of the airbag itself, or by loose pipe joints, height valve failure, or seal damage. It manifests as the body gradually sinking or unable to maintain height.
Airbag rupture: caused by excessive wear, puncture by sharp objects, aging, overloading, or manufacturing defects. It will cause the vehicle to tilt severely instantly, which is very dangerous.
Excessive wear: caused by abnormal friction between the airbag surface and surrounding components, long-term extreme compression or tension, rubber aging, etc.
Height valve failure: stuck, leaking, or malfunctioning, resulting in abnormal or inability to adjust the body height.
Freezing: In cold and humid environments, the water in the height valve or pipeline may freeze and cause functional failure.
Detailed Pictures
