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

M361809 1.400 .720 .0354 .0456 .0807 1.289 107 .0114 64 167 .0228 118 194 .0342 162 206 .0456 196
M361813 1.400 .720 .0492 .0398 .0886 .808 173 .0099 62 301 .0199 116 400 .0298 163 484 .0398 201
M361820 1.400 .720 .0787 .0319 .1102 .405 445 .0080 63 853 .0159 128 1236 .0239 204 1607 .0319 288
M401413 1.570 .563 .0492 .0554 .1043 1.126 216 .0139 62 348 .0277 115 424 .0416 159 472 .0554 193
M401415 1.570 .563 .0591 .0495 .1083 .837 268 .0124 58 463 .0247 108 610 .0371 151 733 .0495 227
M401420 1.570 .563 .0787 .0417 .1201 .530 434 .0104 60 811 .0208 132 1149 .0313 214 1467 .0417 307
M401615 1.570 .642 .0591 .0515 .1102 .871 294 .0129 66 504 .0257 124 658 .0386 172 785 .0515 218
M401620 1.570 .642 .0787 .0437 .1220 .555 475 .0109 62 882 .0218 127 1244 .0328 208 1582 .0437 301
M401820 1.570 .720 .0787 .0458 .1240 .582 528 .0114 72 974 .0229 138 1365 .0343 206 1729 .0458 301
M402010 1.570 .803 .0394 .0516 .0906 1.309 135 .0129 64 208 .0258 118 241 .0387 162 254 .0516 196
M402015 1.570 .803 .0591 .0456 .1043 .772 266 .0114 66 468 .0228 125 627 .0342 175 765 .0456 217
M402020 1.570 .803 .0787 .0439 .1220 .557 527 .0110 75 978 .0219 144 1377 .0329 204 1751 .0439 289
M402023 1.570 .803 .0886 .0358 .1240 .404 565 .0090 63 1083 .0179 129 1570 .0269 205 2042 .0358 290
M402025 1.570 .803 .0984 .0379 .1358 .385 817 .0095 73 1573 .0190 155 2286 .0284 246 2979 .0379 346
M452213 1.770 .882 .0492 .0635 .1122 1.291 248 .0159 76 385 .0318 139 447 .0476 191 473 .0635 231
M452218 1.770 .882 .0689 .0517 .1201 .750 364 .0129 66 644 .0258 125 868 .0388 176 1064 .0517 218
M452225 1.770 .882 .0984 .0398 .1378 .405 666 .0100 59 1277 .0199 125 1851 .0299 199 2406 .0398 281

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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