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

M281008 1.100 .402 .0315 .0376 .0689 1.193 83 .0094 57 131 .0188 106 157 .0282 145 171 .0376 176
M281010 1.100 .402 .0394 .0356 .0748 .904 123 .0089 59 209 .0178 110 270 .0267 153 319 .0356 210
M281013 1.100 .402 .0492 .0317 .0807 .645 177 .0079 57 321 .0159 112 444 .0238 188 556 .0317 276
M281015 1.100 .402 .0591 .0277 .0866 .469 242 .0069 65 457 .0138 140 655 .0208 225 845 .0277 320
M281210 1.100 .480 .0394 .0377 .0768 .957 142 .0094 72 238 .0189 134 303 .0283 186 354 .0377 228
M281213 1.100 .480 .0492 .0338 .0827 .687 203 .0085 70 366 .0169 132 500 .0254 185 621 .0338 268
M281215 1.100 .480 .0591 .0298 .0886 .504 278 .0074 66 522 .0149 136 743 .0223 221 952 .0298 317
M281408 1.100 .559 .0315 .0398 .0709 1.262 104 .0099 79 163 .0199 146 191 .0298 200 204 .0398 242
M281410 1.100 .559 .0394 .0318 .0709 .807 114 .0079 63 199 .0159 119 264 .0238 167 320 .0318 206
M281413 1.100 .559 .0492 .0339 .0827 .689 220 .0085 80 395 .0170 151 540 .0254 213 670 .0339 265
M281415 1.100 .559 .0591 .0258 .0846 .436 249 .0064 62 473 .0129 122 683 .0193 196 884 .0258 278

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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