Precision Belleville Springs

  Inch Dimensions F=.25h F =.50h F=.75h F=h
Part

No.

D d t h O.H. h/t P

Ld

f

Deflec

-tion

Str-

ess

P

Ld

f

Deflec

-tion

Str-

ess

P

Ld

f

Deflec

-tion

Str-

ess

P

Ld

f

Deflec

-tion

Str-

ess

M1254140 4.920 1.610 .1575 .1661 .3228 1.055 2023 .0415 56 3315 .0831 105 4119 .1246 144 4678 .1661 188
M1255140 4.920 2.010 .1575 .1783 .3346 1.132 2404 .0446 70 3866 .0892 131 4701 .1337 180 5222 .1783 219
M1255150 4.920 2.010 .1968 .1548 .3504 .786 3120 .0387 64 5468 .0774 121 7302 .1161 169 8878 .1548 235
M1255160 4.920 2.010 .2362 .1350 .3701 .571 4078 .0337 59 7539 .0675 118 10589 .1012 194 13433 .1350 281
M1256150 4.920 2.400 .1968 .1592 .3543 .809 3500 .0398 77 6099 .0796 144 8097 .1194 202 9795 .1592 250
M1256160 4.920 2.400 .2362 .1434 .3780 .607 4760 .0359 74 8725 .0717 141 12160 .1076 200 15331 .1434 281
M1256180 4.920 2.400 .2950 .1361 .4291 .461 8356 .0340 83 15835 .0680 163 22728 .1021 263 29330 .1361 375
M1256435 4.920 2.520 .1378 .1788 .3150 1.297 2027 .0447 79 3141 .0894 146 3648 .1341 201 3851 .1788 243
M1256450 4.920 2.520 .1968 .1392 .3346 .707 2919 .0348 66 5219 .0696 125 7107 .1044 176 8788 .1392 220
M1256480 4.920 2.520 .2950 .1241 .4173 .421 7662 .0310 77 14640 .0621 154 21163 .0931 246 27458 .1241 348
M1257160 4.920 2.800 .2362 .1319 .3661 .558 4721 .0330 78 8754 .0659 149 12330 .0989 212 15676 .1319 269
M1257180 4.920 2.800 .2913 .1203 .4094 .413 7713 .0301 83 14760 .0602 160 21342 .0902 241 27725 .1203 341
M1257110 4.920 2.800 .3622 .1045 .4646 .289 12284 .0261 88 24024 .0522 183 35443 .0784 286 4636 .1045 396

Materials Used: AISI - C0175 · ALLOY - 6150, INCONEL x 750 or 718, STAINLESS: 17/7 · AND STAINLESS 301 OR 302

Nomenclature: P Ld=load in lbs. Stress=stress in (psi) lbs/sq. in x 10³ f Deflection= deflection in inches

Notes: 1. Disc Springs are tested only at f=.75h 2. Stress value at .75h is tensile at Point 2 or 3, depending on which is higher.

Important Note: Disc springs of thickness greater than .236" (6mm) will automatically be supplied with reduced thickness and bearing flats as shown in this catalog. Disc springs of thickness .236" (6mm) are supported in full and reduced thickness as shown in this catalog; please make specific request.

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