Dunlop SP1490 Air Actuator Double Convoluted Pneumatic Air Spring
4×M10 Screw Studs
Product Description:
Air springs are extremely durable, precisely engineered, and
cost-effective for a variety of actuation and vibration isolation
applications. With their proven design, fabric-reinforced neoprene
or natural rubber flex member construction, and corrosion-resistant
end retainers, air springs offer superior quality and performance.
Specifications and Technical Parameters:
2B8×2T Specifications:
Gas Hole
Air Fitting: 1/2 BSP
Operation: Gas-filled
Pressure Ability: 0-8 bar
Nuts/Blind Nuts
Screw Type: 4×M10
Distance Air Hole Betweeen Screw: 78 mm
Screw Center Distance: 156 mm
Screw Bolts Height: 25 mm
Cover Plate
Top Cover Plate Diameter: 184 mm
Bottom Cover Plate Diameter: 184 mm
Height
Minimum Height: 72 mm
Maximum Height: 225 mm
Static Height: 150 mm
Sroke Height: 153 mm
Rubber Bellows
Installation Diameter: 240 mm
Bellow MAX. Diameter: 230 mm
2B8×2T Technical Parameters:
| Pressure p [bar] | 3 | 4 | 5 | 6 | 7 | 8 | Vol. [I] |
| Force (Load) [kN] | 3.9 | 5.3 | 6.7 | 8.2 | 9.7 | 11.3 | 4.1 |
| Spring rate [N/mm] | 7.6 | 9.7 | 118.5 | 140 | 161 | 181.5 |
| Natural frequency [Hz] | 2.2 | 2.2 | 2.1 | 2.1 | 2.1 | 2.0 |
Cross References:
| Dunlop Springride | SP1490, SP 1490 |
| Firestone | W01-R58-4055, W01 R58 4055, W01R584055 WO1-R58-4055, WO1 R58 4055, WO1R584055 |
| Contitech | FD 138-18 DS, FD 138 18 DS, FD13818DS, FD 138-18DS FD 13818DS, FD 138 18DS, FD138-18 DS, FD138 18 DS |
| Dunlop Pneuride | 8''×2 |
Norgren | M/31082 |
| Parker | 9109011 |
We Supply Other Single Convoluted Air Spring:
| OEM NO. | MIN.H. | MAX. H. | MAX. Diameter | Cover Plate OD. | Screw Type |
| 12×2 | 74 mm | 240 mm | 330 mm | 260 mm | M10 |
| 10×2 | 70 mm | 240 mm | 280 mm | 210 mm | M10 |
| 91/4×2 | 70 mm | 240 mm | 260 mm | 197 mm | M10 |
| 8×2 | 72 mm | 225 mm | 230 mm | 184 mm | M10 |
| 6×2 | 73 mm | 170 mm | 168 mm | 153 mm | M10 |
| 41/2×1 | 65 mm | 145 mm | 125 mm | 110 mm | M6 |
Maintenance and Inspection:
To ensure safe use, be sure to carry out daily inspections. If any
abnormality is found during inspection, replace with a new one.
1. Please confirm that the upper and lower panels and waist rings
are properly placed. In particular, if pressure is applied to the
waist ring in a state of displacement and detachment, the air
spring may rupture.
2. If foreign matter, oil, or chemicals are stained on the air
spring, be sure to remove them.
3. If lubricating oil is mixed into the air spring bladder, please
clean it at any time and clean the rubber bladder with water
regularly.
4. Please confirm that the supply pressure is appropriate. In
particular, abnormal phenomena are prone to occur in the pipes,
which should not be ignored.
5. Please replace the air spring in the following situations. There
are cracks, damages, and wear on the outer rubber layer that go
deep into the cord layer. The air spring is abnormally deformed and
partially bulges. Even if there is no external injury, sometimes
delamination occurs due to the accumulation of air inside the
rubber layer and the frame. Oil, chemicals, heat, etc. can cause
the rubber surface to swell and harden.
6. Corrosion of the upper and lower panels and waist rings will
cause damage to the air spring. When corrosion occurs, parts should
be replaced.
The Real Photos of 2B8×2T:
