Firestone Bellows NO.20-2 Rubber Air Spring With Two Pillars Stick Nuts On Each Plate​

GUOMAT 2B6273 Specifications and Technical Data

Compressed Height: 3.12 inches /

Top Plate Number: 3101

Top Cover Plate Diameter: 6.31 inches / 160mm

Bottom Cover Plate Diameter: 6.31 inches / 160mm

Screw Center Distance : 89 mm

Distance Gas Hole Between Nut: 0 mm

Top Cover Plate Screw (Nut) Tooth : M12X1.75

Bottom Cover Plate Screw (Nut) Tooth : 2pcsXM12X1.75

Rubber Bellows MAX Diameter: 262 mm

The Working Stroke : MAX 325 mm to MIN 95 mm

Gas Hole / Air inlet : 1/4 NPTF

Firestone Bellows Number: 20-2

Goodyear Bellows Number: 578-92-3-206 / 578923206 / 578 92 3 206

Bellows NO.: 20-2

Assembly Weight: 8.1 lbs

Design Height: 9-11 inches

Loading Capacity at 20 psig: 648 lbsf

Loading Capacity at 60 psig: 1,944 lbsf

Loading Capacity at 90 psig: 2,916 lbsf

Maximum Diameter: 10.4 inches

Operating Temperature: 56Cº to -53Cº

Maximum diameter @ 7 bar (mm)264Maximum height (mm)76Maximum stroke (mm)203Minimum usable height (mm)279When the stroke is 25 mm, the force is in kN @ 5 Bar.16.1KN force generated at 5 bar in 50% of the maximum stroke12.4KN force when the maximum stroke is 5 Bar8.9material2-layer standard line

Design height (mm)254Load (at design height): 3 Bar (kN)6.2Load (at design height): 5 bar (kN)10.9Load (at design height) at: 7 Bar (kN)15.6Natural frequency (@ 5 Bar) (fn (Hz)1.6

Goodyear: 2B6273 Cross others OEM

2B5273

Other kinds of FD 200-25 that GUOMAT have:

Blind nuts, 1/4 BSP:W01-M58-6183;W01 M58 6183;W01M586183
Blind nuts, 3/4 BSP:W01-M58-6194;W01 M58 6194;W01M586194
Rubber bellows only:W01-M58-6146;W01 M58 6146;W01M586146
Force to collapse to minimum height (@ 0 BAR):75 N.

Description convolution/ convoluted air spring

Complicated air springs are bellows-style GUOMAT air springs. Bellows air springs have one, two or three turns in a flexible member. Such double compound air bags are commonly used as lifting springs or axle trucks and trailers, as air springs and also as actuators or insulators in industrial and commercial applications and installations. 2B6273 specifications will vary, but the double curved GUOMAT bag can be found in the curly design and sleeve bellows. They will provide similar features and functions but a final permanent connection between the sleeve-type retainer and the braid and external replaceable component braid.

Details Technical data at the below photo

Vibration isolation - dynamic characteristic values

Pneumatic application - static characteristic values Force F [kN]