2B9-251 Goodyear Suspension Air Bags 578-92-3-206 Rubber Air Bellows For Heavy-Duty Vehicles

Product Details:

Place of Origin:	Guangdong, China
Brand Name:	GUOMAT
Certification:	ISO/TS16949, ISO9001
Model Number:	2B9251

Payment & Shipping Terms:

Minimum Order Quantity:	5
Price:	$59.9-69.9/pc
Packaging Details:	Strong Carton Box or as Customers Requirement
Delivery Time:	5-8 Working Days
Payment Terms:	L/C, D/A, D/P, Western Union
Supply Ability:	1000PCS/Week

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Detailed Product Description

Warranty:	One Year	Quantity:	100% Tested
Brand:	GUOMAT Air Spring	Material:	Rubber+Steel
Goodyear:	2B9-251/578-92-3-206	Color:	Black
Convolutions:	2	Buffer Block:	With
Highlight:	Goodyear suspension air bags , heavy-duty vehicle air bellows , rubber air spring suspension

2B9-251 Goodyear Suspension Air Bags 578-92-3-206 Rubber Air Bellows For Heavy-Duty Vehicles

Brand: GUOMAT

Model Number: 2B9251

Material: Rubber

Warranty: 1 Year

Rubber suspension air springs use highly elastic rubber and compressed air as their core components, achieving load-bearing and shock absorption through inflation and deflation, replacing traditional steel springs. They can automatically adjust vehicle height according to load changes, effectively absorbing road impacts and vibrations, reducing noise, and extending the service life of tires and suspension components. They are widely used in the suspension systems of trucks, trailers, buses, and modified vehicles.

Cross-Reference Numbers

Goodyear Numbers: 2B9-251 / 2B 9-251 / 2B9 251

Goodyear Bellows Numbers: 578-92-3-206 / 578 92 3 206 / 578923206

Contitech Numbers: 64552, FD200-25 429 / FD 200-25 429

Firestone Numbers: 6948, W01-358-6948 / W01 358 6948 / W013586948

AUTOMANN	LOAD GUARD	RIDEWELL	TRIANGLE	TRP
ABSP2B12RA-6948	SC2123	1003586948C	4429	AS69480

Technical Specifications

Mounting Interface	Top Plate: 2 holes/studs; 6.4-inch diameter; 3.5-inch bolt circle diameter. Bottom Plate: 2 holes/studs; 6.4-inch diameter; 3.5-inch bolt circle diameter; aligned parallel to the top plate.
Design & Stroke	Internal Bumper: Included Operating Height Range: 3.8 in (min.) to 12.2 in (max.) Total Stroke: 8.4 in (calculated)

Product Applications

For nearly a century, air springs have been successfully applied to the suspension systems of heavy-duty trucks, tractors, and trailers, becoming a crucial component of modern air suspension systems. Air springs typically utilize compressed air supplied by the vehicle's braking system or an independent air source as their working medium. Through changes in air pressure, they achieve load-bearing, cushioning, and height adjustment functions, playing an irreplaceable role in the commercial vehicle sector.

Compared to traditional mechanical leaf springs or coil springs, air springs offer significant structural and performance advantages. Firstly, the air suspension system automatically adjusts the internal air pressure of the air springs according to changes in vehicle load and road conditions, thereby altering the suspension stiffness. This ensures good ride smoothness and comfort whether the vehicle is unloaded, partially loaded, or fully loaded, effectively reducing vibration and noise. Secondly, air springs allow for flexible adjustment of the vehicle chassis, cargo platform, or trailer height. Even without a fixed loading platform, the cargo platform can be aligned with the loading/unloading position, significantly improving loading and unloading efficiency and reducing manual labor intensity.

Furthermore, air springs can significantly reduce fatigue damage to vehicle chassis, frames, and critical components caused by vibration, extending the service life of tires, suspension, and the entire vehicle, while reducing maintenance costs. Simultaneously, a more stable vehicle posture and balanced axle load distribution contribute to improved driving safety, handling performance, and overall vehicle operating efficiency.

Therefore, air springs have become one of the key technologies for enhancing comfort, safety, and economy in modern heavy-duty vehicles and high-end transportation equipment.

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