Firestone EMDG198 manual Style Ribbed neck aluminum bead 203 Rings equal spacing, WO1-358-7225

	Description	Assembly Order No.
Style	Ribbed neck aluminum bead
203	rings (equal spacing),

	203
RECOMMENDED	Static Data
AIRMOUNT
DESIGN HEIGHT	9708
9.5 INCHES

	17/8 bolts, nuts, washers	WO1-358-7227
Two
	Ribbed neck aluminum bead
Ply
	rings (equal spacing) 11/4 b,n,w	WO1-358-7225
Bellows
	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 218		Ribbed neck aluminum bead
	High	rings (equal spacing)
Strength		17/8 bolts, nuts, washers	WO1-358-7228
	Bellows

24 (3/8-24) BOLTS

EACH RING

28-32 FT. LBS.

TORQUE

16.50 BOLT CIRCLE DIA.

20.0 MAX O.D.

AT 100 PSIG

HEIGHT

VOLUME (WITHOUT BUMPER) CU IN. x 100

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

Do not use Airstroke in shaded area without consulting Firestone

Volume

100 Psig

			35
			30
	120 Psig
			25
	100 Psig
			20	x 1000
		80 Psig		LBS
			15	FORCE
		60 Psig
			10
40		Psig	5
		20 Psig
			1

17.75 DIA.

NOTE: A bead ring part is shown. This part is also avail- able with rolled plates. See page 11 for explanation.

Dynamic Characteristics at 9.5 in. Design Height

(Required for Airmount isolator design only)

Volume @ 100 PSIG = 2,163 in3			Natural
			Frequency
Gage		Spring
Pressure	Load	Rate	CPM	HZ
(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

MAX. HT.									MIN. HT.
12	11	10	9	8	7	6	5	4	3.3

HEIGHT IN.

See page 12 for instructions on how to use chart.

Force Table (Use for Airstroke® actuator design)

	Volume			Pounds Force
Assembly	@ 100
Height	PSIG	@20	@40	@60	@80	@100
(in.)	(in3)	PSIG	PSIG	PSIG	PSIG	PSIG

10.02,261 3,330 6,710 10,340 14,000 17,680

9.02,067 3,820 7,680 11,780 15,850 19,970

8.01,853 4,210 8,450 12,880 17,370 21,840

7.01,625 4,520 9,010 13,700 18,590 23,280

6.01,385 4,790 9,510 14,460 19,490 24,360

5.01,135 5,070 10,140 15,380 20,580 25,790

4.0870 5,350 10,760 16,260 21,750 27,240

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