上海红硕机电设备有限公司

横滨橡胶产品

CATALOG NO. FP0201-06E PAGE 01/07

YOKOHAMA AIR SPRING

Self-Seal Type

THE YOKOHAMA RUBBER CO., LTD.

CATALOG NO. FP0201-06E PAGE 02/07

THE YOKOHAMA RUBBER CO., LTD.

1. WHAT IS “SELF-SEAL” ?

This type of “Yokohama Air-Spring” has the following advantages.

1-1. “SELF-SEAL” type Air Spring has no sealing problems. Because compressed air in rubber bellows can seal itself by pressing the ends of bellows to bead wire.

①Rubber bellows

②Retaining ring

③Bead wire

④Lower/upper plates (flanges)

⑤Air inlet

⑥Installation tap

1-2. More Simple

This Air Spring is composed of rubber bellows, upper plate, lower plate, and retaining rings. So it is　easy to assemble and break up. In addition, to that only bellows can be exchanged.

1-3. Economy

Virtually no maintenance and vastly reduced bellows damage.

1-4. Easy Maintenance

No need to lubricate because of the good flexibility of Air Spring.

1-5. Softer mounting

Natural frequency lower that can practically be attained by any other means.

1-6. Lower Height

Lower setting height and longer strokes.

1-7. Tailored Power

Any desired power can be attained by changing inner pressure.

1-8. Same Leveling

The same height can be attained by using the leveling valve.

2. DEVELOPMENT OF “SELF-SEAL” TYPE AIR SPRING

The Yokohama Rubber Co., Ltd. after a series of experiments and researched, designed and built up “SELF-SEAL” type Air-Spring In 1958. And dynamic load tests by 1 tons testing facilities have been continued since May. 1958. The company also completed “SELF-SEAL” type Air Spring of 600mm diameter in 1960.

Since 1959 in the field of railway this type Air Spring has been used, especially “Shinkansen bullet train”. In addition these have been used for mounting vehicles, industrial machinery, and other equipments on air vibration and shock isolation usage.

CATALOG NO. FP0201-06E PAGE 03/07

THE YOKOHAMA RUBBER CO., LTD.

3. MISCELLANOUS ARTICLES ON THE USE OF “SELF-SEAL” TYPE AIR SPRING

3-1. Stroke of the Air Spring is to be used within maximum stroke shown on the attached drawing.

3-2. Some stoppers should be set so that the upper and lower plates may not get out of the Air Spring to let the air out suddenly when it Is used at over maximum height.

3-3. Care should be taken to keep maximum inner pressure at standard height within 7kgf/cm2 for effective diameter 450mm and 9kg/cm2 for the smaller diameter.

It is advisable for Air Spring life to keep normal inner pressure within 5kgf/cm2 if possible.

3-4. Care should be also taken to prevent friction of Air Spring and other parts.

3-5. Thin metal cover should be set over Air Spring to protect it in case there is a fear that other parts may touch the air-spring and damage it.

3-6. Air Spring should be protected from any kind of oil as much as possible.

3-7. Temperature around Air Spring should be kept less than about 55 degree C otherwise it may sometimes shorten air-spring life.

4. SAFEKEEPING

4-1. Air Spring should be kept in the cool and dark place where ventilation is good.

4-2. Air Spring, especially sealing parts, should not be damaged.

4-3. Air Spring should be kept in normal form without any distortion.

5. HOW AIR SPRING WORKS

5-1. The endurance is greatly different according to the usage condition. Generally, it will keep more than million times when it is used within the limit of normal stroke.

5-2. Generally, the Air Spring with a small effective diameter and long height may sometimes buckle. Air Spring that has a tendency to buckle is shown as follows.

Size	Buckling
S-200-4	△
S-160-4	△
S-120-4	×
S-100-4	×
S-100-3	△

△----has a tendency to buckle ×----buckle need guide to prevent buckling

CATALOG NO. FP0201-06E PAGE 04/07

THE YOKOHAMA RUBBER CO., LTD.

We show a sample of the guide as follows for your reference.

5-3. About an eccentric load, it is better to set the center of load to that the Air Spring. When the load is put out of the center of Air-Spring, upper or lower plate is broken up from bellows in the worst case. So we recommend the allowable eccentricity as follows.

5-4. About inclination, be careful not to set the upper plate and lower late inclined. We have the allowable inclination set as follows.

Size	Maximum Inclination θ
S100 ～ S160	5 deg.
S200 ～ S220	7 deg.
S240 ～ S350	9 deg.
S400 ～ S600	12 deg.

CATALOG NO. FP0201-06E PAGE 05/07

THE YOKOHAMA RUBBER CO., LTD.

6. SUPPLY LIST OF AIR SPRING

MODEL NO.	B			C	D	E					F	G	H
MODEL NO.	B-1	B-2	B-3	C	D	E-1	E-2	E-3	E-4	E-5	F	G	H
S-600-5 -4 -3 -2 -1	276	456	156	±113	660	2830	76.6	138.3	1010	1.3	0.69	3.9-4.9	○
	218	363	123	±90			59.9		1285	1.5
	160	270	90	±68			43.2		1765	1.8
	102	172	57	±45			26.3		2873	2.3
	72	122	40	±30	700		19.0		4197	2.8
S-550-3 -2	160	270	90	±68	610	2830	37.0	116.7	1481	1.8
S-550-3 -2	102	172	50	±45	610	2830	23.0	116.7	2363	2.2
S-500-5 -4 -3 -2	276	456	156	±113	560	1965	54.0	96.3	706	1.4
	218	363	123	±90			41.9		912	1.5
	160	270	90	±68			30.3		1255	1.8
	102	172	57	±45			18.5		2020	2.3
S-450-5 -4 -3 -2 -1	276	456	156	±113	510	1590	43.6	80.0	588	1.4
	218	363	123	±90			33.8		755	1.6
	160	270	90	±68			24.3		1040	1.8
	102	172	57	±45			14.7		1687	2.3
	72	117	40	±30	550		11.9		2295	2.7		2.9-3.9
S-400-5 -4 -3 -2	276	435	156	±113	460	1260	34.5	61.6	481	1.4	0.88	3.9-4.9
	218	348	123	±90			27.1		608	1.6
	160	260	90	±68			19.5		834	1.8
	102	167	57	±45			11.9		1344	2.3
S-350-4 -3 -2 -1	218	336	118	±85	410	960	21.0	47.1	471	1.6
	160	250	85	±65			15.0		647	1.8
	102	160	55	±42			9.5		1040	2.3
	72	117	40	±30	450		6.9		1520	2.8	0.69	2.9-3.9
S-300-4 -3 -2 -1	206	326	111	±80	360	710	15.5	34.7	324	1.5	0.88	3.9-4.9
	152	242	82	±60			11.2		490	1.9
	98	148	53	±40			7.4		745	2.3
	72	110	40	±30	400		5.6		1108	2.8	0.69	2.9-3.9
S-240-4 -3 -2 -1	206	316	111	±80	300	450	10.1	22.2	235	1.6	0.88
	152	232	82	±60			7.3		324	1.9
	98	148	53	±40			4.4		520	2.4
	72	110	40	±30	340		3.5		765	2.9	0.69
S-220-4 -3 -2	206	311	111	±80	280	380	8.6	18.6	206	1.7	0.88		△
	152	232	82	±60			6.1		284	2.0			○
	98	148	53	±40			3.7		451	2.5			○
S-200-4 -3 -2	206	311	111	±70	260	315	7.2	15.4	177	1.7			△
	152	232	82	±53			5.2		235	2.0			○
	98	148	53	±35			3.2		373	2.5			○
S-160-4 -3 -2 -1	206	306	111	±70	220	200	4.7	9.8	118	1.7	0.88		△
	152	227	82	±53			3.4		157	2.0			○
	98	148	53	±35			2.1		255	2.5
	72	102	40	±25	260		1.9		363	3.0	0.69
S-120-4 -3 -2	206	306	111	±70	180	113	3.4	5.2	69	1.8	0.88		×
	152	227	82	±53			2.1		98	2.2			△
	98	148	53	±35			1.25		157	2.7			○
S-100-4 -3 -2	206	296	121	±60	160	79	1.95	3.9	59	1.9			×
	152	222	87	±45			1.4		78	2.2			△
	98	143	58	±30			0.85		118	2.8			○
S-90-3	76	106	46	±30	125	63.5	0.5	3.1	103	2.9		3.9-4.9	○
S-60-4 -3 -2	103	139	67	±36	90	28.3	0.28	1.4	39	2.7			×
	76	103	49	±27			0.2		59	3.2
	49	67	31	±18			0.14		83	3.9
S-50-3 -2	61	81	41	±20	75	19.6	0.08	0.96	59	3.9
S-50-3 -2	39	52	26	±13	75	19.6	0.04	0.96	108	5.3

Material of bellows: special blended synthetic rubber including reinforcing fabric.

Allowable operating temperature: from -30 to +65 degree C

CATALOG NO. FP0201-06E PAGE 06/07

THE YOKOHAMA RUBBER CO., LTD.

[Note of pre-page]

MODEL NUMBER STRUCTURE

Example: S-500-5

“S”: Self-Seal Type

“-500”: Effective Diameter

“-5”: Number of bellow’s humps

※ Air Spring is usually delivered with retaining-rings made of steel. Lower/Upper plate is supplied as “made-to-order”.

※ The retaining rings & lower/upper plates made of stainless steel (SUS304) are also supplied as “made-to-order”

※ The special Air Spring for heat resistance using up to +100 degree C can be produced. Please check with YOKOHAMA.

B: Recommended Height (unit: mm)

B1: Design Height (without lower/upper plate)

B2: Maximum Height (without lower/upper plate)

B3: Minimum Height (without lower/upper plate)

C: Recommended Maximum Stroke (unit: mm)

D: Maximum Diameter at Minimum Height (unit: mm)

E: Data at Design Height in case of 0.49Mpa inner pressure

E1: Effective Area (unit: cm2)

E2: Volume (unit: liter)

E3: Load (unit: KN)

E4: Dynamic Spring Rate (unit: N/mm)

E5: Natural Frequency (unit: Hz)

F: Recommended Maximum Working Pressure (unit: Mpa)

G: Burst Pressure (unit: Mpa)

H: Compression Buckling Durability

○: No problem

△: There is possibility of Problem. Please consult with us.

×: Need the preventive guide ※Refer to the sample figure of the 5-2.

详细资料：法兰图纸