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Description
Ribbed neck aluminum
Style
bead rings (equal spacing),
138-1.5
7
1
/
bolts, nuts, washers
8
Two Ply
Rubber bellows only
High
Strength
Bellows
Assembly weight ...................................................... 24.5 lbs.
Force to collapse to minimum height (@ 0 PSIG)..... 150 lbs.
32 (3/8-24) BOLTS
EACH RING
28-32 FT. LBS.
TORQUE
23.50 BOLT CIRCLE DIA.
27.9 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.
Dynamic Characteristics at 6.0 in. Design Height
(Required for Airmount isolator design only)
Volume @ 100 PSIG = 3,014 in
Gage
Pressure
Load
(PSIG)
(lbs.)
(lbs./ in.)
40
15,870
60
24,490
80
32,890
100
41,620
Assembly Order No.
WO1-358-7737
WO1-358-0147
HEIGHT
25.13 DIA.
3
Natural
Frequency
Spring
Rate
CPM
HZ
8,190
135
2.25
11,439
128
2.14
14,427
124
2.07
17,301
121
2.02
RECOMMENDED
AIRMOUNT
DESIGN HEIGHT
6.0 INCHES
Do not use Airstroke in
65
shaded area without
consulting Firestone
60
55
50
45
40
35
Volume
100 Psig
30
25
20
15
10
5
MAX. HT.
8
7
6
HEIGHT IN.
See page 12 for instructions on how to use chart.
Force Table (Use for Airstroke
Volume
Assembly @ 100
Height
PSIG
@20
3
(in.)
(in
)
PSIG
9.0
3,419 5,390 11,420 18,340 25,320 32,820
8.0
3,014 7,770 15,870 24,490 32,890 41,620
7.0
2,552 9,410 18,910 28,740 38,230 47,890
6.0
2,045 10,360 20,670 31,280 41,520 51,850
5.0
1,509 10,860 21,560 32,660 43,430 54,250
138-1.5
Static Data
3575
120 Psig
100 Psig
80 Psig
60 Psig
40 Psig
20 Psig
MIN. HT.
5
4
3
®
actuator design)
Pounds Force
@40
@60
@80
@100
PSIG
PSIG
PSIG
PSIG
65
60
55
50
45
40
35
30
25
20
15
10
5
2
53
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