AIRSUSTECH Air Spring Assembly 3B7994 Cross Contitech 64572
Watson&chalin AS-0019-F Triple Convoluted
Cross Reference
Triangle 4546
Triangle 6364
Goodyear 3B12-328
Goodyear 3B12 328
Goodyear 3B12328
Contitech FT 330-29 546
Contitech FT 330 29 546
Contitech FT330-29 546
Contitech FT330 29 546
Contitech FT33029546
Contitech 64572
Firestone W01-358-7994
Firestone W01 358 7994
Firestone W013587994
Watson&chalin AS-0019-F
Watson&chalin AS 0019 F
Watson&chalin AS0019F
Euolid/meritor After market E-FS7994
Euolid/meritor After market E FS7994
Euolid/meritor After market EFS7994
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
The air inlet/air hole/ air fittings is combined with the screw
teeth
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/Girdle hoop/Girdle ring
2 pieces of belt loop/girdle hoop/girdle ring
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]
| Pressure p [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. V [l] |
| Height H[mm] | 380 | 8.8 | 11.9 | 15.1 | 18.4 | 21.7 | 25.1 | 23.6 |
| 340 | 10.7 | 14.4 | 18.2 | 22.0 | 25.9 | 29.8 | 21.6 |
| 300 | 12.3 | 16.5 | 20.8 | 25.1 | 29.5 | 33.7 | 19.2 |
| 260 | 13.7 | 18.2 | 22.9 | 27.6 | 32.3 | 36.9 | 16.6 |
| 220 | 14.8 | 19.5 | 24.6 | 29.6 | 34.6 | 39.5 | 13.8 |
| 180 | 15.9 | 21.1 | 26.5 | 31.8 | 37.2 | 42.4 | 10.7 |
| 140 | 17.0 | 22.4 | 28.1 | 33.6 | 39.1 | 44.7 | 7.5 |
The related picture of 3B7994
Air Spring Maintenance Tips
1. The air spring does not need to be repaired or maintained in
normal use. It is only necessary to regularly rinse the metal parts
(piston, cover) that are easy to accumulate sediment when cleaning
the vehicle, without using any cleaning agent.
2. The airbag cannot be repaired after damage, do not repair any
damaged airbags.
3. During installation or maintenance, if the airbag comes into
contact with solvent, hydraulic oil or grease, please wipe off
these substances with a dry cloth to prevent the airbag rubber
material from expanding due to soaking.
4. Regular inspection of the air spring system and proper
maintenance can prolong the service life of the air spring and
ensure the safe operation of the vehicle.
