67
MAX. HT.
MIN. HT.
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
80 Psig
Do not use Airstroke in
shaded area without
consulting Firestone
Volume
100 Psig
20 Psig
12 11 10
9 8 7 6 5 4
3.3
40 Psig
120 Psig
100 Psig
35
30
25
20
15
10
5
1
60 Psig
RECOMMENDED
AIRMOUNT
DESIGN HEIGHT
9.5 INCHES
Static Data
9708
HEIGHT IN.
203
HEIGHT
17.75 DIA.
24 (3/8-24) BOLTS
EACH RING
16.50 BOLT CIRCLE DIA.
20.0 MAX O.D.
AT 100 PSIG
28-32 FT. LBS.
TORQUE
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
Dynamic Characteristics at 9.5 in. Design Height
(Required for Airmount isolator design only)
Volume @ 100 PSIG = 2,163 in
3
Gage
Spring
Pressure
Load
Rate
(PSIG)
(lbs.)
(lbs./ in.)
40
7,210
2,190
103
1.72
60
11,100
3,150
100
1.67
80
14,970
4,040
97
1.62
100
18,890
4,971
96
1.60
Natural
Frequency
CPM
HZ
Description
Assembly Order No.
Ribbed neck aluminum bead
rings (equal spacing),
1
7
/
8
bolts, nuts, washers
WO1-358-7227
Ribbed neck aluminum bead
rings (equal spacing) 1
1
/
4
b,n,w
WO1-358-7225
Rolled plate assembly, 1/2
blind but 3/4 NPT
WO1-358-7273
Rubber bellows only
WO1-358-0205
Assembly weight ....................................................... 23.8 lbs
Force to collapse to minimum height (@ 0 PSIG)....... 40 lbs.
Style
203
Two
Ply
Bellows
Ribbed neck aluminum bead
rings (equal spacing)
1
7
/
8
bolts, nuts, washers
WO1-358-7228
Style 218
High
Strength
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
10.0
2,261 3,330 6,710 10,340 14,000 17,680
9.0
2,067 3,820 7,680 11,780 15,850 19,970
8.0
1,853 4,210 8,450 12,880 17,370 21,840
7.0
1,625 4,520 9,010 13,700 18,590 23,280
6.0
1,385 4,790 9,510 14,460 19,490 24,360
5.0
1,135 5,070 10,140 15,380 20,580 25,790
4.0
870
5,350 10,760 16,260 21,750 27,240
