Firestone EMDG198 manual 1M1A-1, Description, Static Data

1M1A-1

		Description	Assembly Order No.
	Style	Blind nut, 1/8 NPT,	WO2-358-3003
	1M1A-1	brass stud
	Two
	Ply
	Bellows
Assembly weight				0.5 lbs.
Force to collapse to minimum height (@ 0 PSIG)				......... 20 lbs.
			5/16-18

THREADED HOLE (3/8 DEEP)

3-5 TURNS 30-50 IN. LBS.

TORQUE

3.4 MAX O.D.

AT 60 PSIG

2.88 DIA.

HEIGHT

5/8-11	1.00
100-130 IN. LBS.
TORQUE
1/8 NPT
AIR INLET	2.40 DIA.

NOTE: The dotted line on the static data chart shows the force capabilities of the 1M1A-1 when attaching an additional 0.5 inch pedestal, provided by the customer, to the base of the air spring. If an additional pedestal is

CONSULT FIRESTONE	RECOMMENDED	Static Data
	AIRMOUNT
BEFORE USING AS
	DESIGN HEIGHT	B3940
AIRMOUNT
	3.0 INCHES

	24			12
		Volume
		100 Psig
	20			10
IN.		Do not use
CU		Airstroke
	16	in shaded		8
BUMPER)(WITHOUT		area without	120 Psig	100xLBSFORCE
		consulting
		Firestone
			100
			Psig
	12			6
VOLUME			80 Psig
	8		60 Psig	4
			40 Psig
	4			2
			20 Psig
	0			0

not used, the air spring will behave as the solid line					MAX. HT.		3.5	3		2.5		2	MIN. HT.
depicts. Without a pedestal the rubber part will contact					4								1.5
								HEIGHT IN.
the ground at the height of 2.1 inches and could cause
the rubber part to wear prematurely.					See page 12 for instructions on how to use chart.
Dynamic Characteristics at 3.0 in. Design Height
(Required for Airmount isolator design only)
Volume @ 100 PSIG = 14 in3			Natural			Force Table (Use for Airstroke® actuator design)
							Volume			Pounds Force
			Frequency
Gage		Spring				Assembly	@ 100
Pressure	Load	Rate	CPM	HZ		Height	PSIG	@20	@40		@60	@80	@100
						(in.)	(in3)	PSIG	PSIG		PSIG	PSIG	PSIG
(PSIG)	(lbs.)	(lbs./in.)
						3.0	14	118	235		356	475	593
40	235	191	199.52	3.33
60	356	274	169.93	2.83
80	475	352	161.74	2.70
100	593	458	165.29	2.75

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