Triple Convoluted 3B7994 Replaces Firestone Air Spring W01-358-7994/FT 330-29 546 Shock Absorber

OEM NO.

Specifications and Detailed Technical Parameters: 3B7994

• Nut/blind nut

Top plate screw (nut) teeth: 3/8-16UNC,3/4-16UNC

Bottom cover plate screw (nut) teeth: 2×3/8-16UNC

The screw center distance of the Top cover plate: 140 mm

The screw center distance of the bottom cover plate: 157.5 mm

• Air hole/air inlet/air fittings

Air hole/air inlet: 1/4NPTF

• Rubber Bellows

Top plate diameter (width): 231 mm

Diameter (width) of the bottom cover plate: 231 mm

Rubber bellows stroke: 130mm-460mm

• Bumper block/bumper block

With bumper block

• Belt loop/Belt loop

With belt loop: Two belt loop

Min. pressure: 0 bar

Return force to min.height: ≤400N

Overall weight with clamped plates: 5.9kg

Pneumatic application-static characteristic values

Force F[KN]

The related picture of 3B7994

Air Bag 3B7994 can replace W01-358-7994/W01 358 7994/W013587994/WO1-358-7994/WO1 358 7994/WO13587994. It is the use of compressed air (water) as the medium, is the use of its internal compressed air reaction as an elastic restoring force of an elastic element. From the point of view of structure, compound air spring, is between the capsule type and membrane type of a type, it combines the advantages of the two kinds of air spring, has a lower spring stiffness, but the manufacturing process is complex.

Detection system

Our products through strict system testing, spring fatigue test, high and low test equipment,
Tensile testing machine, spring tensile testing machine, rubber dynamic and static testing equipment, rubber bushing fatigue testing machine, MTS testing equipment, air spring tightness test, fully are in line with international standards.