| OEM reference | Number | Manufacturer Reference | Number |
| Firestone Bellows Number | 0233-02 | Reyco part number | 19983-01 |
| Firestone part number | W01-358-7557,
W013587557,
W01 358 7557 | Reyco part number | (21AR,74AR) |
| ContiTech | 161388 | Suspension of supplier: SAF Holland | 90557203 |
| Contitech | FD 530-35 530 ;
FD53035543;
FD 53035 543 | Histeer | 10316 |
| Goodyear Bellows Number | 578923356;
578 92 3 356;
578-92-3-356 | SAF Holland | 90557203 |
| Goodyear part number | 2B14-383 ;
2B14476,
2B14 383 | Watson&Chalin | AS-0089 |
| | Twthill | 1998301 |
| Triangle part number | 6412 | Suspension of supplier: SAF Holland | FSIP OEM: W016756799 |
| Triangle Bellows Number | 4530 | | |
Also known as: 75374, FD530-35CI1/4NPTOS
Compatible with: W013586810, W01-358-6810, WO13586810, WO1-358-6810
FD 530-35 CI 1/4 NPT OS,
Size of AIRSUSTECH 2B7557 replaces Fd 530-35 530 Contitech :
Loading Capacity at 20 psig: 2,040 lbsf
Loading Capacity at 60 psig: 6,120 lbsf
Loading Capacity at 90 psig: 9,180 lbsf
Operating Temperature: 57Cº to -54Cº
Nut / Blind Nut
Top Cover Plate Screw (Nut) Tooth : 2 pcs X M12X1.75
Screw Center Distance of Top Cover Plate : 159 mm
Bottom Cover Plate Screw (Nut) Tooth : 2 pcs X M12X1.75
Screw Center Distance of Bottom Cover Plate : 159 mm
Gas Hole / Air inlet / Air Fitting
Gas Hole / Air inlet : 1/4NPT , Combination Stud/Air Inlet Stud
Cover Plate
Top Cover Plate Diameter (Width): 289 mm
Bottom Cover Plate Diameter (Width): 289 mm
Rubber Bellows
Rubber Bellows MAX Diameter : 406 mm
Compressed Height: 104 mm / 4.1 inches
Maximum Height: 391 mm
Working Stroke : 287mm
Bumper block / Buffer block
With Bumper Block
Girdle Hoop / Girdle Ring
With Girdle Hoop :One Pieces of Girdle Hoop
Overall weight with clamped plates 7.7 kg
bellows type industrial air spring, double scroll, effective area
530cm square, maximum stroke 35cm, crimped pressure plate, internal
thread, 1/4 NPT, offset
Compressed height
3.03"
Maximum expansion height
15.4"
The maximum diameter
15.9"
Maximum inflation pressure
120 psi
Maximum stroke
12.37"
Inlet type
Imperial
Air inlet
1/4"
series
C
lowest temperature
-76°F
Maximum temperature
158°F
Bellows type
Double convolution
weight
17 pounds
Vibration isolation - dynamic characteristic values
Design height H: recommended 285mm, minimum 265mm
Pressure p [bar] 345678 Vol V [l]
Additional types on request Force (Load) [KN] 18.7 25.1 31.6 38.2
44.6 51.2
Spring rate [N/cm] 1770 2250 2700 3180 3640 4100
Natural frequency [Hz] 1.5 1.5 1.5 1.4 1.4 1.4
Pneumatic application - static characteristic values
Force F [kN]
Pressure p [bar] 345678 Vol.( l )
Height H [mm] 320 14.9 20.4 25.9 32.0 37.6 43.7 26.0
280 18.5 24.5 31.0 38.1 45.0 51.7 23.2
240 21.1 28.0 35.5 43.3 50.3 57.9 20.5
200 23.1 30.7 38.5 47.1 54.8 62.8 17.5
M160 24.8 33.1 41.3 50.4 58.4 67.2 14.1
120 26.2 34.8 43.4 52.9 61.5 70.6 10.8
The drawing and data of AIRSUSTECH 2B7557 air spring:
