Firestone EMDG198 - Manual (Page 76)

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
15.0 3,496 2,940 6,160 9,810 13,170 16,620
13.0 3,109 3,490 7,380 11,520 15,550 19,660
11.0 2,673 3,970 8,400 12,910 17,270 21,910
9.0 2,201 4,330 9,150 13,890 18,650 23,500
7.0 1,698 4,670 9,660 14,850 19,890 25,140
5.0 1,155 5,160 10,360 16,050 21,470 26,970
Dynamic Characteristics at 13.0 in. Design Height
(Required for Airmount isolator design only)
Volume @ 100 PSIG = 3,109 in 3
Gage Spring
Pressure Load Rate
(PSIG) (lbs.) (lbs./ in.)
40 7,380 1,487 84 1.40
60 11,520 2,080 80 1.33
80 15,550 2,652 77 1.29
100 19,660 3,399 78 1.30
Natural
Frequency
CPM HZ
18 16 14 12 10
MAX. HT. MIN. HT.
70
60
50
40
30
20
10
4.5
Volume
100 Psig
40 Psig
100 Psig
120 Psig
80 Psig
60 Psig
Do not use Airstroke in
shaded area without
consulting Firestone
8 6
35
30
25
20
15
10
5
20 Psig
CONSULT FIRESTONE
BEFORE USING AS
AIRMOUNT
RECOMMENDED
AIRMOUNT
DESIGN HEIGHT
13.0 INCHES
Static Data
1808
HEIGHT IN.
323
76
HEIGHT
17.75 DIA.
24 (3/8-24) BOLTS
EACH RING
28-32 FT. LBS.
TORQUE
16.50 BOLT CIRCLE DIA.
20.5 MAX O.D.
AT 100 PSIG
NOTE: A bead ring 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 WO1-358-7823
Rolled plate assembly, 1/2
blind nuts, 3/4 NPT
WO1-358-7274
Rubber bellows only WO1-358-7921
Assembly weight ....................................................... 31.1 lbs
Force to collapse to minimum height (@ 0 PSIG)....... 70 lbs.
Style
323
Two
Ply
Bellows
Ribbed neck aluminum bead
rings (equal spacing),
1
7 / 8 bolts, nuts, washers WO1-358-7829
Rubber bellows only WO1-358-0324
Style
324
High
Strength
Bellows