2B9-287 Goodyear Air Spring Ball SP2B12R5 Phoenix T2086660
Suspension Air Spring
Quack Detail
Describe: Suspension Air Spring Bags
GUOMAT No.: 2B7894
Warranty: 12 Months
Truck Model: Heavy Duty Truck
Color: Black
Place of Origin: Guangzhou,China
Certification: ISO/TS16949:2009
Material: Rubber+Steel
Packing: Neutral Packing
MOQ: 1 Pcs
Quality: High-Quality
Position: Auto/Truck parts
Application: Auto Suspension Systems
Technical parameters
Nut / Blind Nut
α.Top Cover Plate Screw (Nut) Tooth : 2XM10X1.5
β.Screw Center Distance of Top Cover Plate : 89 mm
γ.Bottom Cover Plate Screw (Nut) Tooth : 2XM10X1.5
δ.Screw Center Distance of Bottom Cover Plate : 89 mm
Gas Hole / Air inlet / Air Fitting
α.Gas Hole / Air inlet : G1/4
Cover Plate
α.Top Cover Plate Diameter: 160 mm
β.Bottom Cover Plate Diameter: 160 mm
Rubber Bellows
α.Rubber Bellows MAX Diameter: 251 mm
β.Rubber Bellows Natural Diameter: 224 mm
γ.The Working Stroke : MAX 260 mm to MIN 75 mm
δ.Maximum Height : 260 mm
η.Minimum Height :75 mmx
Bumper block / Buffer block
α.Without Bumper Block
Cross Reference Numbers
| Firestone W01-M58-7894 | SAF 4.229.1004.00 |
| Firestone W01M587894 | SAF 4 229 1004 00 |
| Firestone W01 M58 7894 | SAF 4229100400 |
| Contitech FD200-19 | P irelli T2086660 |
| Contitech FD 200-19 | Taurus Kf216 |
| Goodyear 2B9-287 | Airkraft 113549 |
| Goodyear 2B 9-287 | |
| Dunlop (PR) S09208 | |
| Phoenix SP2B12R5 | |
The Role of Convoluted Air Spring in Vehicle Suspension
1. Main Functions of Vehicle Suspension
Load Support: Air springs support the weight of the vehicle while
maintaining ride height and dynamically adjust to changes in load
(such as passengers or cargo).
Shock Absorption: They absorb road shock and vibrations, improving
ride comfort by isolating the chassis from uneven roads.
Adjustable Stiffness: The spring stiffness can be changed by
adjusting the air pressure to balance comfort and handling (softer
springs for luxury models, stiffer springs for high-performance
models).
2. Main Benefits
Adaptive Ride Height: Compressed air adjusts the height of the
spring to keep the vehicle level under different loads (for trucks,
buses and luxury cars).
Enhanced Comfort: Softer initial compression than metal springs,
reducing the bumpy feeling on bumpy roads.
Durability: The elastic rubber structure is more resistant to wear
and corrosion than steel springs.
Customizable Performance: Integration with electronic control
systems (such as adaptive suspension systems) allows real-time
adjustments.
3. Applications
Commercial Vehicles: Trucks and buses use corrugated air springs
for load leveling and stability control.
Luxury: Brands like Mercedes-Benz and Audi use corrugated air
springs for a smooth, adjustable ride.
Off-road/Heavy Duty: Enhanced articulation and load capacity in
rough conditions.
4. How it works
Rubber bellows: The corrugated (folded) design expands/contracts
with changes in air pressure.
Air supply: The onboard compressor inflates/deflates the spring via
a valve, which is usually managed by a sensor and ECU.
Piston (optional): Some designs include a piston to control the
progressive spring rate.
5. Comparison with other springs
| Features | Corrugated air spring | Coil spring | Leaf spring |
|--------------|-------------------------|-------------|-------------|
| Adjustability | High (pressure-based) | None | Limited |
| Comfort | Excellent (adjustable) | Good | Stiff/harsh |
| Load capacity | Dynamically expandable | Fixed | High but stiff |
| Complexity | Higher (needs air system) | Simple | Simple |
Product Picture
