Technical parameters

Nut / Blind Nut
α.Top Cover Plate Screw (Nut) Tooth : 1pcsX3/8-16UNC
β.Screw Center Distance of Top Cover Plate : 89 mm
γ.Bottom Cover Plate Screw (Nut) Tooth : 2pcsX3/8-16UNC
δ.Screw Center Distance of Bottom Cover Plate : 140 mm
η.Screw Center Distance of Bottom Cover Plate : 157.5 mm

Gas Hole / Air inlet / Air Fitting
α.Gas Hole / Air inlet : 1/4 N P.T.F. / 1/4NPTF

Cover Plate
α.Top Cover Plate Diameter: 231 mm
β.Bottom Cover Plate Diameter: 231 mm

Rubber Bellows
α.Rubber Bellows MAX Diameter: 330 mm
β.Rubber Bellows Natural Diameter :300 mm
γ.The Working Stroke : MAX 460 mm to MIN 130 mm
δ.Maximum Height : 460 mm
η.Minimum Height :130 mmx
θ.Compression Height : 330 mm

Bumper block / Buffer block
α.With Bumper Block Or Without Bumper Block

Girdle Hoop / Girdle Ring
α.With Girdle Hoop :Two Pieces of Girdle Hoop

GUOMAT 3B7994 Cross Reference Numbers

Cross Firestone Number: W01-358-7994 / WO1-358-7994

Cross Firestone Number: W013587994 / WO13587994

Cross Firestone Number: W01 358 7994 / WO1 358 7994

Cross Contitech Number: 64572

Cross Contitech Number: FT 330-29 546

Cross Contitech Number: FT330-29 546

Cross Contitech Number: FT330-29546

Cross Goodyear Number: 3B12-328

Cross Goodyear Number: 3B 12-328

Cross Goodyear Number: 3B12 328

Cross Goodyear Number: 578-93-3-100

Cross Goodyear Number: 578 93 3 100

Cross Goodyear Number: 578933100

Cross Triangle Number: 4546/6364

For Watson&chalin: AS-0019-F

For Euolid/meritor After market: E-FS7994

Common Applications for Suspension Air Bags
Suspension air bags have made a significant impact on heavy-duty trucks and trailers in many ways.

Main trailer suspension air springs provide excellent cargo protection while reducing maintenance issues caused by road shock and "trailer hop" when unloaded. Trailers last longer and can be used to haul a wider variety of cargo, reducing expensive empty trailer miles.

Lift axle air springs allow you to lift the axle without leaving the cab. Save tire wear in unloaded or partially loaded conditions and allow you to handle tight turns with an expanded tandem.

Drive axle air springs greatly improve tractor ride and handling, resulting in increased operator comfort and safety, reduced tractor maintenance, longer tire wear and higher trade-in value. They require virtually no maintenance and last more than twice as long as steel springs.

Front axle air springs significantly improve steering and handling while improving tire wear and reducing issues caused by cab vibration.

Cab-mounted air springs eliminate most of the problems encountered with standard cab installations and help reduce harmful cab vibrations.

Seat air springs increase driver comfort and help alleviate dangerous driver fatigue.

Product Picture