Firestone EMDG198 - Manual (Page 50)

Dynamic Characteristics at 5.0 in. Design Height
(Required for Airmount isolator design only)
Volume @ 100 PSIG = 787 in 3
Gage Spring
Pressure Load Rate
(PSIG) (lbs.) (lbs./ in.)
40 5,490 3,478 149 2.49
60 8,450 4,880 143 2.38
80 11,450 6,186 138 2.30
100 14,520 7,523 135 2.25
Natural
Frequency
CPM HZ
MAX. HT. MIN. HT.
7 6 5 4 3 2
Volume
100 Psig
120 Psig
100 Psig
80 Psig
60 Psig
40 Psig
20 Psig
Do not use Airstroke in
shaded area without
consulting Firestone
11
10
9
8
7
6
5
4
3
2
1
20
15
10
5
RECOMMENDED
AIRMOUNT
DESIGN HEIGHT
5.0 INCHES
Static Data
6948
HEIGHT IN.
119
50
HEIGHT
15.12 DIA.
18 (3/8-24) BOLTS
EACH RING
28-32 FT. LBS.
TORQUE
13.81 BOLT CIRCLE DIA.
17.4 MAX O.D.
AT 100 PSIG
NOTE: A bead plate part is shown. This part is also avail-
able with rolled plates. See page 11 for explanation.
See page 12 for instructions on how to use chart.
V
OLUME (WITHOUT B
UMPER) CU IN. x 100
FORCE LBS x 1000
Description Assembly Order No.
Ribbed neck aluminum
bead rings (equal spacing),
1
7 / 8 bolts, nuts, washers WO1-358-7478
Rubber bellows only WO1-358-0119
Rolled Plate Assembly,
1/2 blind nuts, 3/4 NPT
WO1-358-7477
Assembly weight ...................................................... 13.2 lbs.
Force to collapse to minimum height (@ 0 PSIG)....... 17 lbs.
Style
119
Two
Ply
Bellows
Force Table (Use for Airstroke ® actuator design)
Volume Pounds Force
Assembly @ 100
Height PSIG @20 @40 @60 @80 @100
(in.) (in 3 ) PSIG PSIG PSIG PSIG PSIG
6.0 932 1,640 3,800 6,100 8,550 11,070
5.0 787 2,560 5,490 8,450 11,450 14,520
4.0 617 3,080 6,470 9,850 13,190 16,600
3.0 436 3,310 6,920 10,530 14,030 17,630