Helic

al Is

olat

orM Design Data Sheet

TEL: (631) 491-5670 FAX: (631) 491-5672 www.isolator.com E-MAIL: sales@isolator.com CAGE: 07QQ7

M8-260-08-[ ]

M8-255-08-[ ]

M8-245-08-[ ]

M8-231-08-[ ]

2.55

(66,0)

(64,8)

2.60

(62,2)2.45

2.31(58,7)

3.50

(95,3)

(88,9)

3.75

3.13(79,5)

2.80(71,1)

M8-213-08-[ ]

M8-190-08-[ ] 1.90(48,4)

2.13(54,1)

2.50(63,5)

2.20(55,9)

M8-270-08-[ ] (68,6)2.70

(100,3)3.95

M8-325-08-[ ] (82,6)3.25

(108,0)4.25

1265

(16,0)

(6,4)

(13,2)

(146,1)

(131,06) (7,49)

(7,93)

.25

5.75

.52

.634X .312

2X .2952X 5.160

932

291

213

301

663

958

688

156

446

210

2.05

1.10

.90

1.25

1.35 109

1.50

383

84

160

100

53

102

221

433

78

316

287

439

53

204

391

141

97

174

.70

125

1.40

242

11.2(318)

12.2(346)

12.6(358)

13.7(389)

15.0(426)

15.6(443)

16.0(454)

17.4(494)

M8 SERIES1/4" DIAMETER CABLE

M8 - 255 - 08 - H -AMMODEL NUMBER EXAMPLE

NO. OF LOOPS

BAR MATERIAL/FINISH

MOUNTING HOLES

· 8 LOOPS STANDARD FOR THE M8 SERIES.

· ISOLATOR SPRING RATES ARE DIRECTLY

PROPORTIONAL TO NO. OF CABLE LOOPS.

· CABLE DIAMETER IN 32NDS

· [ ]= 6061-T6 ALUM ALLOY/CHEM FILM

IAW MIL-DTL-5541, TYPE II, CLASS 3.

· [H]= 6061-T6 ALUM ALLOY/ANODIZED

IAW MIL-A-8625, TYPE II CLASS 1.

· [S]= 300 SERIES SS/PASSIVATED IAW

ASTM A967.

· BASED ON ISOLATOR HEIGHT

· SEE MOUNTING HOLE OPTIONS.

· ADD 'M' TO END OF P/N FOR METRIC

MOUNTING HOLES.

· ADD 'L' TO END OF P/N FOR LOCKING

INSERTS. (N/A FOR SS BARS)

ISOLATORWEIGHT

DIMENSIONS

W±.03H (REF) (lbs/in)MAX.

DEFLECT.

COMPRESSION

(lbs/in)KsKv

SHEAR/ROLL

NOTES:· MOUNTING HOLE TOLERANCES: ±0.010 (±0.25mm).· ALL DIMENSIONS IN PARENTHESIS ARE METRIC (mm).· SPECIALS AVAILABLE UPON REQUEST (MATERIALS, SIZE,

MOUNTING HOLES, FINISH, ETC...)· ADD .45lbs (.20kg) TO ISOLATOR WEIGHT FOR ALL-STAINLESS

STEEL VERSIONS.

FEATURES:

· RUGGED ALL METAL CONSTRUCTION

· UNEQUALLED TEMP. RANGE: -200°F TO 500°F

· THREE AXIS CAPABILITY (6 DOF)

· FAIL SAFE CONSTRUCTION

· HIGH DAMPING: C/Cc ≈.15-.20

· LONG LIFE AND MAINTENANCE FREE

NOTES, FEATURES, MATERIALS/FINISHES(SHOCK)(VIBE)

(lbs/in) (lbs/in)KsKv (SHOCK)(VIBE)

PARTNUMBER

in (mm)

oz (gms)MAX.

(AVG)

MATERIALS/FINISHES:

· CABLE: 300 SERIES SS PER MIL-W-83420 OR RR-W-410

· SCREWS: 300 SERIES SS PASSIVATED IAW ASTM A967

· INSERTS: 300 SERIES SS (ALUM BARS ONLY)

· RETAINER BARS: SEE BELOW

(in) DEFLECT. (in)

W(SEE TABLE)

(SEE TABLE)H

SEE MOUNTINGHOLE OPTIONS

(TYP)

(REF)

MOUNTING HOLE OPTIONS

(90°)2X Ø.266CSK 82°

(6,76)

A

B

C

D

E

F

2X 1/4-20 (M6x1,0)

2X Ø.266 (6,76)

2X 1/4-20 (M6x1,0)

2X 1/4-20 (M6x1,0)

2X 1/4-20 (M6x1,0)

(90°)2X Ø.266CSK 82°

(6,76)

(90°)2X Ø.266CSK 82°

(6,76)

(90°)2X Ø.266CSK 82°

(6,76)

2X Ø.266 (6,76)

2X Ø.266 (6,76)

2X Ø.266 (6,76)

2.05

1.10

.90

1.25

1.35

1.50

.70

1.40

MODEL SIZE

SERIES