<% DIM A(4) A(1)= 78 A(2)= 124 A(3)= 182 A(4)= 248 %>
 
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FOUNDATIONS
  T-SLOT BASEPLATES
ANCHOR FRAME
4 POSTER TEST SYSTEM

FULL CAR TEST SYSTEM
FUNDAMENTALS
VIBRATION ISOLATORS
AIR SPRINGS
- ADVANTAGES
- SINGLE CONVOLUTION
SERIES BZ
  - ROLLING LOBE
  SERIES RB
  - BELTED
  SERIES GRB
  GRB WITH DAMPER
  GRB W/VISCO DAMPER
  SERIES SRB
  - MEMBRANE CONVOLUTION
 
  - MEMBRANE AIRSPRINGS
 
STEEL SPRINGS
LEVEL CONTROL SYSTEM.
THE SOFIA PROJECT
Belted Air Spring Type GRB
The belted rubber bellows of the GRB series are manufactured of high-quality elastomer materials with vulcanised wire belt. They therefore possess sound lateral characteristics. The cover plate and the piston are made of cast aluminium.
Air spring of series GRB possess a load capacity up to 248 kN depending on the version with a natural frequency between 0.7 and 1.1 Hz.
The air springs of series GRB MD are equipped with an additional damper plate while those of series GRB VD are equipped with a viscous damper. The springs of GRB series are standard elements for large foundation mountings.
Type
(click for PDF document )
Load at
6 bar
(kN)
Operating
Height
(mm)
Max.
Diameter
(mm)
Necessary dia for installation
(mm)
weight

(kg)
Damping
factor
()
1st natural Frequency at 6 bar (Hz)
<% = A(1) %>
330
265
300
8.1
0
1.5
<% = A(2) %>
340
310
325
8.6
0
1.3
<% = A(3) %>
300
330
345
9.5
0
1.5
<% = A(4) %>
390
360
385
14
0
1.2
Type
(click for PDF document )
Load at
87 PSI
(lbf)
Operation
Height
(inch)
Max.
Diameter
(inch)
Necessary dia for installation
(inch)
weight

(lbs)
Damping
factor
()
1st natural Frequency at
87 PSI (Hz)
4945
13.0
10.4
13.0
17.8
0
1.5
6295
13.4
12.2
12.8
18.9
0
1.3
6969
11.8
13.0
13.6
20.9
0
1.5
9217
15.3
14.2
15.2
30.9
0
1.2

 

CFM-Schiller GmbH: Belted Air Spring Type GRB
 
 
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