This double convoluted air spring is manufactured from high-quality natural rubber with steel cover plates. It features a minimum height of 104 mm, a maximum height of 305 mm, and a working stroke of 201 mm.
For the 2B7400 model, the cover plate diameter is 231 mm, and the center-to-center distance is 157 mm. When the air pressure reaches 0.7 MPa, the maximum outer diameter of the rubber component reaches 325 mm.
The industrial convoluted rubber air spring operates via gas filling. Its air connection is 1/4 NPTF, and the screw nut size is ×3/8-16 UNC.

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The Specifications of GART 271.2.209/2 T271/2

Cover plate diameter	228.6 mm
Air hole	1/4''-18NPT
Threaded hole	2×3/8''-16UNC
Center distance diameter	157.5 mm
Distance between air inlet and holes	73 mm
Bellows type	double convolutions

AIRSUSTECH Double Type Air Bags with 231MM Plate Diameter

2B7180	Firestone W01-358-7180/22 Contitech FD 330-22 363 Goodyear 2B12-425/311 Goodyear Bellows No. 578923309 Triangle 6316/4363 Airkraft 115061/3B-356
2B7181	Firestone W01-358-7181 Contitech FD 330-22 472 Goodyear 2B12-411 Goodyear Bellows No. 578923309 Triangle 6316/4472
2B7183	Firestone W01-358-7183 Contitech FD 330-22 471 Goodyear 2B12-412 Goodyear Bellows No. 578923309 Triangle 6316/4471
2B7344	Firestone W01-358-7344 Contitech FD 330-22 500 Goodyear 2B12-304 Triangle 6316/4500
2B7401	Firestone W01-358-7401 Contitech FD 330-22 337 Goodyear 2B12-320 Goodyear Bellows No. 578923309 Triangle 6316/4334
2B7403	Firestone W01-358-7403/22 Contitech FD 330-22 318 Goodyear 2B12-307/433/445 Goodyear Bellows No. 578923309

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