Firestone EMDG198 manual 348-3, Volume

		Description	Assembly Order No.
	Style	Ribbed neck aluminum bead
348-3		rings (equal spacing),
		17/8 bolts, nuts, washers	WO1-358-9603
	High
		Rubber bellows only	WO1-358-1023
Strength
	Bellows
Assembly weight			103.9 lbs

Force to collapse to minimum height (@ 0 PSIG)..... 380 lbs.

40 (3/8-24) BOLTS

EACH RING

28-32 FT. LBS.

TORQUE

32.68 BOLT CIRCLE DIA.

37.4 MAX O.D.

AT 100 PSIG

HEIGHT

35.04 DIA.

NOTE: The effective length of the 17/8 bolt is 1.02” in this bead ring.

Dynamic Characteristics at 15.0 in. Design Height

(Required for Airmount isolator design only)

Volume @ 100 PSIG = 13,501 in3			Natural
			Frequency
Gage		Spring
Pressure	Load	Rate	CPM	HZ
(PSIG)	(lbs.)	(lbs./in.)
40	31,480	4,761	73	1.22
60	47,870	6,586	70	1.16
80	64,870	8,614	68	1.14
100	82,540	10,592	67	1.12

										348-3
CONSULT FIRESTONE							RECOMMENDED				Static Data
								AIRMOUNT
BEFORE USING AS
							DESIGN HEIGHT						8413
	AIRMOUNT
								15.0 INCHES
	25															125
			Do not use		Airstroke in
												120 Psig
	24		shaded area		without											120
	23		consulting		Firestone											115
	22															110
1000	21															105
	20											100 Psig				100
		Volume
x	19	100 Psig														95
	18															90
IN.
	17															85
BUMPER)(WITHOUTCU																	1000xLBSFORCE
	16															80
													80 Psig
	15															75
	14															70
	13															65
	12															60
													60 Psig
	11															55
	10															50
	9															45
VOLUME	8															40
										40 Psig
	5															25
	7															35
	6															30
	4												20 Psig			20
	3															15
	2															10
	1															5
	0															0
	MAX. HT.													MIN. HT.
	23	21		19		17		15	13	11	9		7		5 . 5

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

18.015,946 14,080 27,430 43,790 57,710 74,670

16.014,340 15,190 30,370 46,420 62,810 80,190

14.012,634 16,230 32,380 49,170 66,610 84,820

12.010,843 17,330 33,880 51,470 69,410 89,150

10.08,984 18,290 35,370 53,580 71,930 93,030

8.07,075 19,070 36,970 55,590 74,740 96,470

6.05,102 19,760 38,620 57,550 77,790 99,680

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