F Fc

DISC SPRINGS

t

s/ho

ho Di

De

lo

1

DISC SPRINGS Disc Springs are conically-shaped, washer-type components designed to be axially loaded. What makes Disc Springs unique is that based on the standardized calculations of DIN 2092, the deflection for a given load is predictable and the minimum life cycle can be determined. Disc Springs can be statically loaded either continuously or intermittently, or dynamically subjected to continuous load cycling. They can be used singly or in multiples, stacked parallel, in series or in a combination thereof.

The advantages of Disc Springs compared to other types of springs include the following: • A wide range of load/deflection characteristics •

High load capacity with small deflection

• Space savings – high load to size ratio • Consistent performance under design loads • Longer fatigue life • Inherent dampening especially with parallel stacking • Flexibility in stack arrangement to meet your application requirements DIMENSIONAL DESIGNATIONS De = External Diameter of Disc Di = Internal Diameter of Disc t lo = Free Height of Disc t = Material Thickness of Disc ho = Free Cone Height of Disc

Di

De

SYMBOLS AND UNITS USED IN THE APPLICATION OF DISC SPRINGS F s s E µ

2

= Force or Load Applied = Deflection of Disc Resulting from an Applied Force = Stress = Modulus of Elasticity = Poisson’s Ratio

lo

ho

N mm N/mm2 N/mm2 —

DISC SPRINGS STANDARD PRODUCT RANGE DIN 2093 RANGE

SPIROL offers the full range of DIN 2093 Group 1 and 2 Disc Springs in Series A, B, and C.

SPIROL STANDARD RANGE

In addition to the DIN specified sizes, SPIROL stocks its own standard size range in outside diameters from 8mm to 200mm in order to meet the diverse needs of its customers. SPIROL Standard Disc Springs meet all material, dimensional tolerance, and quality specifications as laid out in DIN 2093 but in diameter and thickness combinations that are not included in the DIN standard.

STANDARD PRODUCT DEFINITIONS

PROPERTY

GROUP 1

GROUP 2

THICKNESS

50mm 2 • IT 12

De TOLERANCE Di TOLERANCE MINUS mm

PLUS mm

0.12 0.15 0.18 0.21 0.25 0.30 0.35 0.40 0.46

0.12 0.15 0.18 0.21 0.25 0.30 0.35 0.40 0.46

3 to 6 Over 6 to 10 Over 10 to 18 Over 18 to 30 Over 30 to 50 Over 50 to 80 Over 80 to 120 Over 120 to 180 Over 180 to 250

CONCENTRICITY TOLERANCE 1 0.15 0.18 0.22 0.26 0.32 0.60 0.70 0.80 0.92

1) In reference to Outside Diameter De

THICKNESS TOLERANCE (t) THICKNESS RANGE

TOLERANCE mm

mm

From 0.2 to Over 0.6 to under From 1.25 to Over 3.8 to

PLUS 0.6 1.25 3.8 6

MINUS

0.02 0.03 0.04 0.05

0.06 0.09 0.12 0.15

FREE OVER-ALL HEIGHT (lo) TOLERANCE THICKNESS RANGE (t) mm

TOLERANCE mm PLUS

Less than 1.25 From 1.25 to 2 Over 2 to 3 Over 3 to 6

MINUS

0.10 0.15 0.20 0.30

0.05 0.08 0.10 0.15

SPRING FORCE TOLERANCE

The following deviations apply for normal applications:

The static load (F) of a single disc shall be determined for a disc in the loaded state using a suitable lubricant. The pressure plates between which the disc is compressed must be hardened, ground and polished.

THICKNESS (t) mm

Less than 1.25 From

1.25

to

3

Over 3 to 6

8

PERMISSIBLE DEVIATION in load F at s = 0.75 ho as a percentage

+ 25 % - 7.5 % + 15 % - 7.5 % + 10 % - 5 %

DIN

C B A

C B A

F

Cone Height ho Inside Dia. Di

8 8 8 8 8 8 10 10 10 10 10 10 10 10 12 12 12 12 12 12

De

3.2 3.2 3.2 4.2 4.2 4.2 3.2 3.2 4.2 4.2 4.2 5.2 5.2 5.2 4.2 4.2 5.2 5.2 6.2 6.2

Di

0.3 0.4 0.5 0.2 0.3 0.4 0.3 0.5 0.4 0.5 0.6 0.25 0.4 0.5 0.4 0.5 0.5 0.6 0.5 0.6

t

0.55 0.60 0.70 0.45 0.55 0.60 0.65 0.85 0.70 0.75 0.85 0.55 0.70 0.75 0.80 0.90 0.90 0.95 0.85 0.95

lo

Dimensions

0.25 0.20 0.20 0.25 0.25 0.20 0.35 0.35 0.30 0.25 0.25 0.30 0.30 0.25 0.40 0.40 0.40 0.35 0.35 0.35

ho 0.83 0.50 0.40 1.25 0.83 0.50 1.17 0.70 0.75 0.50 0.42 1.20 0.75 0.50 1.00 0.80 0.80 0.58 0.70 0.58

ho/t 0.04 0.03 0.03 0.04 0.04 0.03 0.05 0.05 0.05 0.04 0.04 0.05 0.05 0.04 0.06 0.06 0.06 0.05 0.05 0.05 0.51 0.57 0.67 0.41 0.51 0.57 0.60 0.80 0.65 0.71 0.81 0.50 0.65 0.71 0.74 0.84 0.84 0.90 0.80 0.90

lt 31 43 79 15 35 48 32 99 55 72 118 22 61 80 55 91 96 116 80 127

F sIII 263 214 249 269 328 268 223 289 275 235 266 260 330 283 238 266 303 266 278 310

sII 122 212 299 -6 107 198 36 240 151 222 296 4 139 212 76 158 137 202 132 194

Preload, s = 0.15 ho s

II

I

Test Height lt

III Overall Height lo

IV

“ t” 1.25mm and thicker A l l oy S teel

W Phosphate coated, oiled

HV 412 - 544 HRC 42 - 52

HV 425 - 510 HRC 43 - 50

0.06 0.05 0.05 0.06 0.06 0.05 0.09 0.09 0.08 0.06 0.06 0.08 0.08 0.06 0.10 0.10 0.10 0.09 0.09 0.09

s 0.49 0.55 0.65 0.39 0.49 0.55 0.56 0.76 0.62 0.69 0.79 0.47 0.62 0.69 0.70 0.80 0.80 0.86 0.76 0.86

lt 44 69 128 21 50 78 52 169 84 106 175 32 93 117 85 143 150 201 137 219

F 197 365 511 6 175 343 95 461 260 343 453 26 242 328 149 285 251 384 257 369

sII

s = 0.25 ho 386 350 408 394 482 439 388 506 430 348 394 403 516 418 385 432 493 467 487 545

sIII

0.13 0.10 0.10 0.13 0.13 0.10 0.18 0.18 0.15 0.13 0.13 0.15 0.15 0.13 0.20 0.20 0.20 0.18 0.18 0.18

s

0.42 0.50 0.60 0.32 0.42 0.50 0.47 0.67 0.55 0.62 0.72 0.40 0.55 0.62 0.60 0.70 0.70 0.77 0.67 0.77

81 130 246 34 92 147 83 303 140 214 360 48 155 236 141 249 263 370 245 403

F

540 792 1083 127 493 749 324 1057 570 815 1053 133 539 784 411 683 611 856 604 829

sII

s = 0.5 ho lt

775 666 782 778 971 837 714 948 760 713 813 702 912 858 714 809 923 884 917 1033

sIII

0.19 0.15 0.15 0.19 0.19 0.15 0.26 0.26 0.23 0.19 0.19 0.23 0.23 0.19 0.30 0.30 0.30 0.26 0.26 0.26

s

0.36 0.45 0.55 0.26 0.36 0.45 0.39 0.59 0.47 0.56 0.66 0.32 0.47 0.56 0.50 0.60 0.60 0.69 0.59 0.69

lt

105 186 357 39 119 210 98 401 192 297 508 58 213 329 178 331 350 502 324 547

F

930 1281 1717 329 865 1218 640 1700 1019 1280 1629 352 974 1238 786 1193 1080 1350 988 1313

sII

s = 0.75 ho 1057 949 1123 1044 1325 1194 951 1290 1084 992 1138 980 1303 1195 988 1130 1291 1213 1249 1417

sIII

0.25 0.20 0.20 0.25 0.25 0.20 0.35 0.35 0.30 0.25 0.25 0.30 0.30 0.25 0.40 0.40 0.40 0.35 0.35 0.35

s

126 238 465 42 142 269 108 500 232 377 652 63 257 418 206 402 424 641 404 699

F

s = ho

Refer to page 14 for SPIROL Stainless Steel Disc Springs.

R

STANDARD FINISH

“t” less than 1.25mm High Carbon Steel

B

STANDARD MATERIALS

Design Force, Deflection and Stresses Based on E = 206 kN/mm2 and µ = 0.3

TO ORDER: Product / De x Di x t / material code / finish code EXAMPLE: DSC 25 x 12.2 x 0.7 BR

Deflection s in mm Force F in N Stress s in N/mm2 Values calculated in accordance with DIN 2092

Thickness t

OM

Outside Dia. De

DISC SPRINGS TO DIN 2093

Series

9

-1332 -1421 -1776 -1003 -1505 -1605 -1147 -1911 -1384 -1441 -1730 -957 -1531 -1595 -1228 -1535 -1619 -1700 -1544 -1853

s0M

DIN

A C B A

C B

C B A

C B A

C B A C B A

Di

6.2 6.2 6.2 7.2 7.2 7.2 5.2 5.2 6.2 6.2 6.2 8.2 8.2 8.2 8.2 8.2 6.2 6.2 6.2 6.2 6.2 8.2 8.2 8.2 9.2 9.2 9.2 8.2 8.2 8.2 8.2 10.2 10.2 10.2 10.2 10.2 11.2 11.2 11.2

De

12.5 12.5 12.5 14 14 14 15 15 15 15 15 15 15 16 16 16 18 18 18 18 18 18 18 18 18 18 18 20 20 20 20 20 20 20 20 20 22.5 22.5 22.5

0.35 0.5 0.7 0.35 0.5 0.8 0.4 0.7 0.5 0.6 0.7 0.7 0.8 0.4 0.6 0.9 0.4 0.5 0.6 0.7 0.8 0.7 0.8 1 0.45 0.7 1 0.6 0.7 0.8 0.9 0.5 0.8 0.9 1 1.1 0.6 0.8 1.25

t

0.80 0.85 1.00 0.80 0.90 1.10 0.95 1.25 1.00 1.05 1.10 1.10 1.20 0.90 1.05 1.25 1.00 1.10 1.20 1.40 1.50 1.25 1.30 1.50 1.05 1.20 1.40 1.30 1.35 1.40 1.50 1.15 1.35 1.45 1.55 1.55 1.40 1.45 1.75

lo

Dimensions

0.45 0.35 0.30 0.45 0.40 0.30 0.55 0.55 0.50 0.45 0.40 0.40 0.40 0.50 0.45 0.35 0.60 0.60 0.60 0.70 0.70 0.55 0.50 0.50 0.60 0.50 0.40 0.70 0.65 0.60 0.60 0.65 0.55 0.55 0.55 0.45 0.80 0.65 0.50

ho 1.29 0.70 0.43 1.29 0.80 0.38 1.38 0.79 1.00 0.75 0.57 0.57 0.50 1.25 0.75 0.39 1.50 1.20 1.00 1.00 0.88 0.79 0.63 0.50 1.33 0.71 0.40 1.17 0.93 0.75 0.67 1.30 0.69 0.61 0.55 0.41 1.33 0.81 0.40

ho/t 0.07 0.05 0.05 0.07 0.06 0.05 0.08 0.08 0.08 0.07 0.06 0.06 0.06 0.08 0.07 0.05 0.09 0.09 0.09 0.11 0.11 0.08 0.08 0.08 0.09 0.08 0.06 0.11 0.10 0.09 0.09 0.10 0.08 0.08 0.08 0.07 0.12 0.10 0.08

s 0.73 0.80 0.95 0.73 0.84 1.05 0.87 1.17 0.92 0.98 1.04 1.04 1.14 0.82 0.98 1.20 0.91 1.01 1.11 1.29 1.39 1.17 1.22 1.42 0.96 1.12 1.34 1.19 1.25 1.31 1.41 1.05 1.27 1.37 1.47 1.48 1.28 1.35 1.67

lt sII -14 122 263 -12 94 255 -15 194 70 141 189 178 226 -5 114 215 -32 23 78 112 179 114 178 268 -22 129 223 25 87 136 177 -15 125 161 197 230 -23 96 239

F 57 72 162 46 76 192 66 210 95 116 138 159 226 58 112 211 57 85 124 239 320 157 205 367 80 156 276 146 172 199 265 96 186 249 327 347 160 199 451 325 246 287 268 258 261 242 314 278 255 228 293 320 262 267 227 198 217 236 335 358 259 268 309 272 275 240 279 263 245 262 268 251 269 287 251 302 260 249

sIII

Preload, s = 0.15 ho 0.11 0.09 0.08 0.11 0.10 0.08 0.14 0.14 0.13 0.11 0.10 0.10 0.10 0.13 0.11 0.09 0.15 0.15 0.15 0.18 0.18 0.14 0.13 0.13 0.15 0.13 0.10 0.18 0.16 0.15 0.15 0.16 0.14 0.14 0.14 0.11 0.20 0.16 0.13

s 0.69 0.76 0.92 0.69 0.80 1.02 0.81 1.11 0.87 0.94 1.00 1.00 1.10 0.77 0.94 1.16 0.85 0.95 1.05 1.22 1.32 1.11 1.17 1.37 0.90 1.07 1.30 1.12 1.19 1.25 1.35 0.99 1.21 1.31 1.41 1.44 1.20 1.29 1.62

lt 82 123 255 67 120 302 103 346 143 174 222 256 367 86 169 372 85 130 191 362 491 259 320 580 121 242 451 219 258 315 423 140 309 419 553 537 240 302 720

F 1 238 432 -2 173 418 4 370 137 236 328 311 391 12 192 398 -30 61 152 215 324 220 306 451 -14 226 382 66 158 244 313 -5 235 298 361 370 -14 168 399

sII

s = 0.25 ho 496 431 452 409 419 411 408 535 439 392 373 479 523 413 411 401 319 350 382 533 571 442 427 493 440 436 394 443 410 398 427 416 428 460 492 388 488 406 398

sIII 0.23 0.18 0.15 0.23 0.20 0.15 0.28 0.28 0.25 0.23 0.20 0.20 0.20 0.25 0.23 0.18 0.30 0.30 0.30 0.35 0.35 0.28 0.25 0.25 0.30 0.25 0.20 0.35 0.33 0.30 0.30 0.33 0.28 0.28 0.28 0.23 0.40 0.33 0.25

s 0.57 0.67 0.85 0.57 0.70 0.95 0.67 0.97 0.75 0.82 0.90 0.90 1.00 0.65 0.82 1.07 0.70 0.80 0.90 1.05 1.15 0.97 1.05 1.25 0.75 0.95 1.20 0.95 1.02 1.10 1.20 0.82 1.07 1.17 1.27 1.32 1.00 1.12 1.50

lt sII 142 559 864 109 428 826 149 882 368 591 727 694 856 117 488 846 52 234 416 567 779 536 660 939 83 509 814 246 436 576 715 102 548 674 800 830 98 434 815

F 131 220 457 107 210 547 156 605 229 320 411 474 689 131 309 716 126 206 317 588 822 452 564 1051 186 417 865 342 447 557 765 221 555 765 1026 1072 370 539 1330

s = 0.5 ho 949 811 814 784 787 743 746 1000 787 766 707 909 997 735 805 771 583 646 708 964 1037 827 777 904 809 792 757 797 785 748 804 786 806 870 934 776 897 782 737

sIII 0.34 0.26 0.23 0.34 0.30 0.23 0.41 0.41 0.38 0.34 0.30 0.30 0.30 0.38 0.34 0.26 0.45 0.45 0.45 0.53 0.53 0.41 0.38 0.38 0.45 0.38 0.30 0.53 0.49 0.45 0.45 0.49 0.41 0.41 0.41 0.34 0.60 0.49 0.38

s 0.46 0.59 0.77 0.46 0.60 0.87 0.54 0.84 0.62 0.71 0.80 0.80 0.90 0.52 0.71 0.99 0.55 0.65 0.75 0.87 0.97 0.84 0.92 1.12 0.60 0.82 1.10 0.77 0.86 0.95 1.05 0.66 0.94 1.04 1.14 1.21 0.80 0.96 1.37

lt 152 291 673 123 279 813 175 793 291 426 578 666 982 155 412 1004 139 245 400 745 1078 594 791 1514 214 572 1254 413 570 751 1051 254 745 1045 1418 1531 425 710 1952

F 401 913 1419 315 764 1341 411 1483 732 1005 1195 1150 1392 332 838 1287 247 520 794 1097 1419 914 1124 1547 291 895 1295 560 802 998 1205 309 909 1094 1278 1301 336 768 1316

sII

s = 0.75 ho 1284 1105 1189 1061 1101 1092 998 1370 1100 1060 1002 1291 1423 1018 1115 1071 791 885 980 1343 1454 1135 1110 1303 1106 1126 1088 1103 1080 1048 1133 1067 1112 1206 1300 1100 1227 1083 1071

sIII

0.45 0.35 0.30 0.45 0.40 0.30 0.55 0.55 0.50 0.45 0.40 0.40 0.40 0.50 0.45 0.35 0.60 0.60 0.60 0.70 0.70 0.55 0.50 0.50 0.60 0.50 0.40 0.70 0.65 0.60 0.60 0.65 0.55 0.55 0.55 0.45 0.80 0.65 0.50

s

Design Force, Deflection and Stresses Based on E = 206 kN/mm2 and µ = 0.3

DISC SPRINGS TO DIN 2093

Series

10 160 363 855 131 338 1040 181 969 334 519 733 844 1261 165 503 1319 137 267 462 855 1277 725 984 1921 223 699 1631 453 668 921 1311 268 929 1323 1815 1976 444 855 2509

F

s = ho -1250 -1388 -1666 -1018 -1293 -1551 -1079 -1888 -1275 -1377 -1428 -1646 -1881 -988 -1333 -1555 -816 -1021 -1225 -1667 -1905 -1412 -1468 -1834 -1052 -1363 -1558 -1202 -1302 -1373 -1545 -1024 -1386 -1560 -1733 -1560 -1178 -1276 -1534

s0M

DIN

C B A

A

A C B

C B

C B A

Di

8.2 8.2 8.2 10.2 10.2 12.2 12.2 12.2 12.2 12.2 10.2 10.2 10.2 10.2 12.2 12.2 12.2 14.2 14.2 14.2 14.2 16.3 16.3 16.3 16.3 16.3 12.3 12.3 12.3 14.3 14.3 16.3 16.3 18.3 18.3 18.3 14.3 14.3 14.3

De

23 23 23 23 23 23 23 25 25 25 28 28 28 28 28 28 28 28 28 28 28 31.5 31.5 31.5 31.5 31.5 34 34 34 34 34 34 34 35.5 35.5 35.5 40 40 40

0.7 0.8 0.9 0.9 1 1.25 1.5 0.7 0.9 1.5 0.8 1 1.25 1.5 1 1.25 1.5 0.8 1 1.25 1.5 0.8 1.25 1.5 1.75 2 1 1.25 1.5 1.25 1.5 1.5 2 0.9 1.25 2 1.25 1.5 2

t

1.50 1.55 1.70 1.65 1.70 1.85 2.10 1.60 1.60 2.05 1.75 2.00 2.25 2.20 1.95 2.10 2.25 1.80 1.80 2.10 2.15 1.85 2.15 2.40 2.45 2.75 2.20 2.45 2.70 2.40 2.55 2.55 2.85 2.05 2.25 2.80 2.65 2.80 3.05

lo

Dimensions

0.80 0.75 0.80 0.75 0.70 0.60 0.60 0.90 0.70 0.55 0.95 1.00 1.00 0.70 0.95 0.85 0.75 1.00 0.80 0.85 0.65 1.05 0.90 0.90 0.70 0.75 1.20 1.20 1.20 1.15 1.05 1.05 0.85 1.15 1.00 0.80 1.40 1.30 1.05

ho 1.14 0.94 0.89 0.83 0.70 0.48 0.40 1.29 0.78 0.37 1.19 1.00 0.80 0.47 0.95 0.68 0.50 1.25 0.80 0.68 0.43 1.31 0.72 0.60 0.40 0.38 1.20 0.96 0.80 0.92 0.70 0.70 0.43 1.28 0.80 0.40 1.12 0.87 0.53

ho/t 0.12 0.11 0.12 0.11 0.11 0.09 0.09 0.14 0.11 0.08 0.14 0.15 0.15 0.11 0.14 0.13 0.11 0.15 0.12 0.13 0.10 0.16 0.14 0.14 0.11 0.11 0.18 0.18 0.18 0.17 0.16 0.16 0.13 0.17 0.15 0.12 0.21 0.20 0.16

s 1.38 1.44 1.58 1.54 1.59 1.76 2.01 1.46 1.49 1.97 1.61 1.85 2.10 2.09 1.81 1.97 2.14 1.65 1.68 1.97 2.05 1.69 2.01 2.26 2.34 2.64 2.02 2.27 2.52 2.23 2.39 2.39 2.72 1.88 2.10 2.68 2.44 2.60 2.89

lt sII 37 90 125 113 167 231 308 -13 105 242 23 84 176 259 78 173 230 -7 94 165 222 -19 130 193 235 276 22 98 173 91 170 161 265 -12 91 230 44 122 231

F 183 209 311 289 353 532 875 226 243 615 225 398 654 645 374 539 694 287 303 580 649 258 515 812 890 1313 386 610 919 579 781 824 1309 299 464 1139 591 777 1129 245 232 277 282 290 304 344 320 250 232 228 278 312 221 283 282 255 319 254 321 252 282 285 318 255 286 249 276 304 280 279 309 279 261 251 249 251 251 217

sIII

Preload, s = 0.15 ho 0.20 0.19 0.20 0.19 0.18 0.15 0.15 0.23 0.18 0.14 0.24 0.25 0.25 0.18 0.24 0.21 0.19 0.25 0.20 0.21 0.16 0.26 0.23 0.23 0.18 0.19 0.30 0.30 0.30 0.29 0.26 0.26 0.21 0.29 0.25 0.20 0.35 0.33 0.26

s 1.30 1.36 1.50 1.46 1.52 1.70 1.95 1.37 1.42 1.91 1.51 1.75 2.00 2.02 1.71 1.89 2.06 1.55 1.60 1.89 1.99 1.59 1.92 2.17 2.27 2.56 1.90 2.15 2.40 2.11 2.29 2.29 2.64 1.76 2.00 2.60 2.30 2.47 2.79

lt 279 336 486 468 552 863 1432 337 376 1058 351 615 1030 1030 595 835 1163 435 476 898 1018 382 806 1286 1429 2227 587 946 1447 919 1213 1280 2073 461 731 1864 904 1204 1784

F 87 178 233 217 291 399 527 5 187 433 63 165 319 437 158 296 412 13 174 283 365 -9 230 334 394 488 63 188 313 179 294 280 439 2 168 393 98 222 389

sII

s = 0.25 ho 397 389 449 475 463 497 565 509 400 400 379 451 507 356 472 446 432 515 414 508 397 444 458 512 410 486 403 448 493 464 443 491 444 430 409 409 406 404 346

sIII 0.40 0.38 0.40 0.38 0.35 0.30 0.30 0.45 0.35 0.28 0.48 0.50 0.50 0.35 0.48 0.43 0.38 0.50 0.40 0.43 0.33 0.53 0.45 0.45 0.35 0.38 0.60 0.60 0.60 0.58 0.53 0.53 0.43 0.58 0.50 0.40 0.70 0.65 0.53

s 1.10 1.17 1.30 1.27 1.35 1.55 1.80 1.15 1.25 1.77 1.27 1.50 1.75 1.85 1.47 1.67 1.87 1.30 1.40 1.67 1.82 1.32 1.70 1.95 2.10 2.37 1.60 1.85 2.10 1.82 2.02 2.02 2.42 1.47 1.75 2.40 1.95 2.15 2.52

lt sII 295 466 589 541 655 868 1124 136 440 916 244 459 765 911 432 701 897 154 429 677 809 97 530 734 814 1035 250 500 750 472 696 668 964 111 416 837 319 542 865

F 448 565 829 810 964 1630 2748 515 644 2041 556 1022 1799 1899 999 1534 2185 681 832 1649 1997 597 1409 2314 2669 4292 930 1587 2527 1555 2209 2330 4046 716 1277 3576 1459 2040 3391

s = 0.5 ho 733 722 837 887 849 949 1085 919 730 769 698 837 949 660 878 858 822 950 776 978 783 831 844 950 766 935 742 833 923 865 848 941 870 792 766 785 750 743 669

sIII 0.60 0.56 0.60 0.56 0.53 0.45 0.45 0.68 0.53 0.41 0.71 0.75 0.75 0.53 0.71 0.64 0.56 0.75 0.60 0.64 0.49 0.79 0.68 0.68 0.53 0.56 0.90 0.90 0.90 0.86 0.79 0.79 0.64 0.86 0.75 0.60 1.05 0.98 0.79

s 0.90 0.99 1.10 1.09 1.17 1.40 1.65 0.92 1.07 1.64 1.04 1.25 1.50 1.67 1.24 1.46 1.69 1.05 1.20 1.46 1.66 1.06 1.47 1.72 1.92 2.19 1.30 1.55 1.80 1.54 1.76 1.76 2.21 1.19 1.50 2.20 1.60 1.82 2.26

lt 544 717 1078 1055 1325 2331 3986 601 868 2910 661 1289 2394 2745 1266 2089 3065 801 1107 2246 2854 687 1923 3249 3905 6148 1110 2024 3363 1990 2997 3163 5803 831 1699 5187 1780 2677 4781

F 626 840 1066 947 1133 1404 1788 403 787 1410 528 880 1340 1478 802 1178 1423 422 765 1144 1281 310 927 1235 1310 1607 563 938 1313 864 1177 1136 1527 318 743 1332 664 981 1392

sII

s = 0.75 ho 1007 988 1164 1221 1204 1356 1560 1265 1031 1085 947 1158 1326 950 1204 1200 1153 1304 1086 1369 1111 1132 1194 1354 1111 1326 1018 1154 1290 1190 1186 1316 1238 1076 1073 1128 1033 1038 946

sIII

0.80 0.75 0.80 0.75 0.70 0.60 0.60 0.90 0.70 0.55 0.95 1.00 1.00 0.70 0.95 0.85 0.75 1.00 0.80 0.85 0.65 1.05 0.90 0.90 0.70 0.75 1.20 1.20 1.20 1.15 1.05 1.05 0.85 1.15 1.00 0.80 1.40 1.30 1.05

s

Design Force, Deflection and Stresses Based on E = 206 kN/mm2 and µ = 0.3

DISC SPRINGS TO DIN 2093

Series

11

602 842 1279 1273 1629 3000 5184 635 1050 3821 723 1486 2902 3511 1482 2590 3949 859 1342 2785 3680 722 2359 4077 5036 8054 1208 2359 4076 2347 3704 3908 7498 884 2059 6747 1984 3184 6096

F

s = ho -1173 -1257 -1508 -1500 -1556 -1834 -2200 -1238 -1238 -1622 -1078 -1419 -1774 -1490 -1415 -1583 -1676 -1282 -1282 -1702 -1562 -1077 -1442 -1730 -1570 -1923 -1153 -1442 -1730 -1435 -1572 -1658 -1790 -1042 -1258 -1611 -1213 -1351 -1455

s0M

DIN

A

C B

A C B A

B

C

C B A

A

C B

40 40 40 40 40 40 40 40 45 45 45 50 50 50 50 50 50 50 50 50 50 50 50 50 56 56 56 60 60 60 60 60 60 60 63 63 63 63 70

De

16.3 16.3 18.3 20.4 20.4 20.4 20.4 20.4 22.4 22.4 22.4 18.4 18.4 18.4 20.4 20.4 22.4 22.4 25.4 25.4 25.4 25.4 25.4 25.4 28.5 28.5 28.5 20.5 20.5 25.5 25.5 30.5 30.5 30.5 31 31 31 31 30.5

Di

1.5 2 2 1 1.5 2 2.25 2.5 1.25 1.75 2.5 1.5 2 2.5 2 2.5 2 2.5 1.25 1.5 2 2.25 2.5 3 1.5 2 3 2 2.5 2.5 3 2.5 3 3.5 1.8 2.5 3 3.5 2.5

t

2.80 3.10 3.15 2.30 2.65 3.10 3.15 3.45 2.85 3.05 3.50 3.15 3.65 4.15 3.50 3.85 3.60 3.90 2.85 3.10 3.40 3.75 3.90 4.10 3.45 3.60 4.30 4.20 4.70 4.40 4.65 4.50 4.70 5.00 4.15 4.25 4.70 4.90 4.90

lo

Dimensions

1.30 1.10 1.15 1.30 1.15 1.10 0.90 0.95 1.60 1.30 1.00 1.65 1.65 1.65 1.50 1.35 1.60 1.40 1.60 1.60 1.40 1.50 1.40 1.10 1.95 1.60 1.30 2.20 2.20 1.90 1.65 2.00 1.70 1.50 2.35 1.75 1.70 1.40 2.40

ho 0.87 0.55 0.58 1.30 0.77 0.55 0.40 0.38 1.28 0.74 0.40 1.10 0.83 0.66 0.75 0.54 0.80 0.56 1.28 1.07 0.70 0.67 0.56 0.37 1.30 0.80 0.43 1.10 0.88 0.76 0.55 0.80 0.57 0.43 1.31 0.70 0.57 0.40 0.96

ho/t 0.20 0.17 0.17 0.20 0.17 0.17 0.14 0.14 0.24 0.20 0.15 0.25 0.25 0.25 0.23 0.20 0.24 0.21 0.24 0.24 0.21 0.23 0.21 0.17 0.29 0.24 0.20 0.33 0.33 0.29 0.25 0.30 0.26 0.23 0.35 0.26 0.26 0.21 0.36

s 2.60 2.93 2.98 2.10 2.48 2.93 3.01 3.31 2.61 2.85 3.35 2.90 3.40 3.90 3.27 3.65 3.36 3.69 2.61 2.86 3.19 3.52 3.69 3.93 3.16 3.36 4.10 3.87 4.37 4.11 4.40 4.20 4.44 4.77 3.80 3.99 4.44 4.69 4.54

lt sII 110 223 206 -15 106 210 238 270 -13 122 224 43 139 235 139 212 125 209 -11 32 128 169 204 257 -17 94 222 58 149 146 215 128 208 261 -19 126 190 224 78

F 801 1257 1337 383 693 1386 1479 2010 689 985 1695 768 1432 2447 1268 1840 1427 2023 565 808 1226 1859 2154 2671 959 1213 2602 1650 2657 2216 2812 2578 3213 4126 1557 1834 2860 3301 2421 271 254 281 268 261 305 255 279 307 273 234 231 266 301 249 238 286 270 254 276 264 318 302 256 297 255 253 272 303 282 256 347 313 294 330 250 275 231 293

sIII

Preload, s = 0.15 ho 0.33 0.28 0.29 0.33 0.29 0.28 0.23 0.24 0.40 0.33 0.25 0.41 0.41 0.41 0.38 0.34 0.40 0.35 0.40 0.40 0.35 0.38 0.35 0.28 0.49 0.40 0.33 0.55 0.55 0.48 0.41 0.50 0.43 0.38 0.59 0.44 0.43 0.35 0.60

s 2.47 2.82 2.86 1.97 2.36 2.82 2.92 3.21 2.45 2.72 3.25 2.74 3.24 3.74 3.12 3.51 3.20 3.55 2.45 2.70 3.05 3.37 3.55 3.82 2.96 3.20 3.97 3.65 4.15 3.92 4.24 4.00 4.27 4.62 3.56 3.81 4.27 4.55 4.30

lt 1240 2005 2199 572 1117 2211 2385 3385 1041 1544 2773 1161 2218 3849 1989 3028 2247 3261 854 1242 1949 2940 3473 4329 1464 1910 4203 2528 4151 3478 4470 4059 5137 6674 2371 2957 4573 5399 3755

F 203 383 368 -3 198 361 401 475 4 218 383 92 249 406 248 376 228 364 2 74 230 297 355 432 -4 173 377 125 276 262 367 236 361 443 -4 229 329 383 153

sII

s = 0.25 ho 436 409 469 428 435 492 412 471 497 440 384 368 426 483 402 396 466 442 410 447 430 515 494 416 485 415 410 440 491 456 412 564 508 478 538 412 446 380 475

sIII 0.65 0.55 0.58 0.65 0.58 0.55 0.45 0.48 0.80 0.65 0.50 0.83 0.83 0.83 0.75 0.68 0.80 0.70 0.80 0.80 0.70 0.75 0.70 0.55 0.98 0.80 0.65 1.10 1.10 0.95 0.83 1.00 0.85 0.75 1.18 0.88 0.85 0.70 1.20

s

F

2.15 2102 2.55 3663 2.57 4060 876 1.65 2.07 1966 2.55 4041 2.70 4481 2.97 6516 2.05 1620 2.40 2701 3.00 5320 2.32 1897 2.82 3885 3.32 7037 2.75 3478 3.17 5637 2.80 3924 3.20 6044 2.05 1328 2.30 2028 2.70 3491 3.00 5249 3.20 6437 3.55 8214 2.47 2265 2.80 3335 3.65 7895 3.10 4097 3.60 7102 3.45 6081 3.82 8396 3.50 7088 3.85 9407 4.25 12574 2.97 3665 3.37 5294 3.85 8373 4.20 10359 3.70 6297

lt 503 825 819 98 480 783 835 1008 134 512 815 297 615 933 578 825 556 806 106 250 537 675 789 897 114 428 795 386 688 616 818 583 793 937 132 535 721 815 422

sII

s = 0.5 ho 802 764 890 776 816 920 774 905 914 814 737 687 804 921 745 751 872 838 755 828 810 959 938 787 893 778 775 812 916 847 791 1058 953 905 990 777 838 729 883

sIII 0.98 0.83 0.86 0.98 0.86 0.83 0.68 0.71 1.20 0.98 0.75 1.24 1.24 1.24 1.13 1.01 1.20 1.05 1.20 1.20 1.05 1.13 1.05 0.83 1.46 1.20 0.98 1.65 1.65 1.43 1.24 1.50 1.28 1.13 1.76 1.31 1.28 1.05 1.80

s 1.82 2.27 2.29 1.32 1.79 2.27 2.47 2.74 1.65 2.07 2.75 1.91 2.41 2.91 2.37 2.84 2.40 2.85 1.65 1.90 2.35 2.62 2.85 3.27 1.99 2.40 3.32 2.55 3.05 2.97 3.41 3.00 3.42 3.87 2.39 2.94 3.42 3.85 3.10

lt 2758 5195 5642 1018 2616 5730 6544 9359 1891 3659 7716 2321 5121 9658 4702 7902 5222 8510 1550 2512 4762 7241 9063 12044 2621 4438 11441 5026 9255 8195 11803 9432 13269 18225 4237 7179 11810 15025 8031

F 918 1359 1333 309 831 1298 1339 1573 389 898 1296 607 1082 1557 1006 1330 985 1324 312 528 923 1154 1301 1428 348 765 1281 784 1237 1078 1334 1041 1316 1507 400 909 1196 1296 806

sII

s = 0.75 ho 1122 1090 1249 1067 1134 1314 1120 1286 1253 1148 1059 943 1118 1293 1048 1058 1220 1190 1035 1145 1140 1358 1332 1141 1217 1090 1115 1119 1273 1190 1119 1481 1358 1302 1349 1086 1193 1047 1225

sIII

1.30 1.10 1.15 1.30 1.15 1.10 0.90 0.95 1.60 1.30 1.00 1.65 1.65 1.65 1.50 1.35 1.60 1.40 1.60 1.60 1.40 1.50 1.40 1.10 1.95 1.60 1.30 2.20 2.20 1.90 1.65 2.00 1.70 1.50 2.35 1.75 1.70 1.40 2.40

s

Design Force, Deflection and Stresses Based on E = 206 kN/mm2 and µ = 0.3

DISC SPRINGS TO DIN 2093

Series

12 3281 6580 7171 1072 3201 7258 8456 12243 2007 4475 10037 2600 6163 12038 5745 10098 6329 10817 1646 2844 5898 8997 11519 15640 2766 5379 14752 5636 11008 9997 15002 11433 16792 23528 4463 8904 14946 19545 9360

F

s = ho -1392 -1571 -1712 -1024 -1359 -1733 -1595 -1871 -1227 -1396 -1534 -1104 -1471 -1839 -1371 -1543 -1511 -1653 -1006 -1207 -1408 -1697 -1760 -1659 -1174 -1284 -1565 -1346 -1682 -1527 -1592 -1747 -1782 -1834 -1315 -1360 -1586 -1524 -1430

s0M

DIN

A C B A C B C B C B C B C

C B

A C B A

C B A C B

Di

30.5 35.5 35.5 36 36 36 41 41 41 41 46 46 46 41 41 51 51 51 51 51 57 57 57 64 64 72 72 82 82 92 92 102

De

70 70 70 71 71 71 80 80 80 80 90 90 90 100 100 100 100 100 100 100 112 112 112 125 125 140 140 160 160 180 180 200

3 3 4 2 2.5 4 2.25 3 4 5 2.5 3.5 5 4 5 2.7 3.5 4 5 6 3 4 6 3.5 5 3.8 5 4.3 6 4.8 6 5.5

t

5.10 5.10 5.80 4.60 4.50 5.60 5.20 5.30 6.20 6.70 5.70 6.00 7.00 7.20 7.75 6.20 6.30 7.00 7.80 8.20 6.90 7.20 8.50 8.00 8.50 8.70 9.00 9.90 10.50 11.00 11.10 12.50

lo

Dimensions ho/t 0.70 0.70 0.45 1.30 0.80 0.40 1.31 0.77 0.55 0.34 1.28 0.71 0.40 0.80 0.55 1.30 0.80 0.75 0.56 0.37 1.30 0.80 0.42 1.29 0.70 1.29 0.80 1.30 0.75 1.29 0.85 1.27

ho

2.10 2.10 1.80 2.60 2.00 1.60 2.95 2.30 2.20 1.70 3.20 2.50 2.00 3.20 2.75 3.50 2.80 3.00 2.80 2.20 3.90 3.20 2.50 4.50 3.50 4.90 4.00 5.60 4.50 6.20 5.10 7.00

lt F

0.32 4.78 2984 0.32 4.78 3209 0.27 5.53 5376 0.39 4.21 1895 0.30 4.20 1838 0.24 5.36 4511 0.44 4.76 2440 0.35 4.95 2854 0.33 5.87 5407 0.26 6.44 7330 0.48 5.22 2800 0.38 5.62 3721 0.30 6.70 6888 0.48 6.72 5535 0.41 7.34 7606 0.53 5.67 3191 0.42 5.88 3572 0.45 6.55 5482 0.42 7.38 8637 0.33 7.87 10401 0.59 6.31 3893 0.48 6.72 4852 0.38 8.12 9797 0.68 7.32 5671 0.53 7.97 7765 0.74 7.96 6335 0.60 8.40 7631 0.84 9.06 8058 0.68 9.82 10947 0.93 10.07 9698 0.77 10.33 10631 1.05 11.45 13104

s 158 150 250 -19 92 230 -22 109 203 263 -14 122 223 131 214 -17 91 124 204 249 -17 94 215 -16 130 -16 94 -18 110 -15 77 -12

sII 270 307 294 330 247 245 335 270 298 253 315 262 240 269 246 306 246 292 303 250 302 255 237 325 268 308 258 304 260 295 246 306

sIII

Preload, s = 0.15 ho lt

0.53 4.57 0.53 4.57 0.45 5.35 0.65 3.95 0.50 4.00 0.40 5.20 0.74 4.46 0.58 4.72 0.55 5.65 0.43 6.27 0.80 4.90 0.63 5.37 0.50 6.50 0.80 6.40 0.69 7.06 0.88 5.32 0.70 5.60 0.75 6.25 0.70 7.10 0.55 7.65 0.98 5.92 0.80 6.40 0.63 7.87 1.13 6.87 0.88 7.62 1.23 7.47 1.00 8.00 1.40 8.50 1.13 9.37 1.55 9.45 1.28 9.82 1.75 10.75

s 4715 5070 8757 2861 2894 7379 3707 4483 8726 11956 4232 5877 11267 8714 12386 4800 5624 8673 13924 17061 5856 7639 15920 8542 12300 9543 12014 12162 17270 14646 16613 19817

F 279 267 430 -5 169 393 -9 198 354 445 2 218 382 238 376 -3 167 225 355 424 -4 173 367 0 231 -2 173 -6 199 -2 145 5

sII

s = 0.25 ho 436 497 482 532 402 402 545 437 486 412 509 424 394 437 405 492 399 476 496 411 485 415 387 524 436 497 419 491 422 476 398 494

sIII

lt 4.05 4.05 4.90 3.30 3.50 4.80 3.72 4.15 5.10 5.85 4.10 4.75 6.00 5.60 6.37 4.45 4.90 5.50 6.40 7.10 4.95 5.60 7.25 5.75 6.75 6.25 7.00 7.10 8.25 7.90 8.55 9.00

s 1.05 1.05 0.90 1.30 1.00 0.80 1.48 1.15 1.10 0.85 1.60 1.25 1.00 1.60 1.38 1.75 1.40 1.50 1.40 1.10 1.95 1.60 1.25 2.25 1.75 2.45 2.00 2.80 2.25 3.10 2.55 3.50 8376 9007 16634 4432 5054 14157 5724 7838 16213 22928 6585 10416 21617 15219 23009 7410 9823 15341 25810 32937 9038 13341 30215 13231 21924 14773 20982 18832 30431 22731 28552 30882

F 640 617 925 125 417 837 118 474 783 924 130 509 814 577 827 116 411 540 789 897 112 428 777 129 537 119 428 111 474 115 368 131

sII

s = 0.5 ho 814 928 921 980 754 772 1003 814 924 786 938 792 757 818 769 902 749 894 942 790 889 778 737 961 816 911 787 904 790 877 742 910

sIII

s 1.58 1.58 1.35 1.95 1.50 1.20 2.21 1.73 1.65 1.28 2.40 1.88 1.50 2.40 2.06 2.63 2.10 2.25 2.10 1.65 2.93 2.40 1.88 3.38 2.63 3.68 3.00 4.20 3.38 4.65 3.83 5.25 3.52 3.52 4.45 2.65 3.00 4.40 2.99 3.57 4.55 5.42 3.30 4.12 5.50 4.80 5.69 3.57 4.20 4.75 5.70 6.55 3.97 4.80 6.62 4.62 5.87 5.02 6.00 5.70 7.12 6.35 7.27 7.25

lt 11453 12316 23923 5144 6725 20535 6611 10539 22874 33682 7684 14189 31354 20251 32328 8613 13070 20674 36339 48022 10493 17752 43812 15422 29950 17201 27920 21843 41051 26442 37533 36111

F

1097 1065 1486 388 744 1332 378 838 1288 1460 385 882 1295 1017 1344 359 734 944 1301 1418 352 765 1243 390 925 364 764 350 831 350 674 381

sII

s = 0.75 ho 1148 1310 1319 1342 1055 1109 1369 1145 1314 1139 1286 1116 1088 1144 1088 1237 1049 1255 1337 1139 1220 1090 1061 1319 1151 1250 1101 1238 1110 1201 1036 1247

sIII

2.10 2.10 1.80 2.60 2.00 1.60 2.95 2.30 2.20 1.70 3.20 2.50 2.00 3.20 2.75 3.50 2.80 3.00 2.80 2.20 3.90 3.20 2.50 4.50 3.50 4.90 4.00 5.60 4.50 6.20 5.10 7.00

s

Design Force, Deflection and Stresses Based on E = 206 kN/mm2 and µ = 0.3

DISC SPRINGS TO DIN 2093

Series

13

14152 15218 30919 5426 8152 26712 6950 12844 29122 43952 8157 17487 40786 24547 41201 9091 15843 25338 46189 62711 11064 21518 56737 16335 37041 18199 33843 23022 50260 27966 44930 38423

F

s = ho -1502 -1615 -1845 -1295 -1246 -1594 -1311 -1363 -1738 -1679 -1246 -1363 -1558 -1465 -1574 -1191 -1235 -1512 -1764 -1663 -1174 -1284 -1505 -1273 -1415 -1203 -1293 -1189 -1333 -1159 -1192 -1213

s0M

DIN

A B A B A B A C B A C B A C B A C B A C B A C B A C B C B C B C C C C C

Di

4.2 5.2 5.2 6.2 6.2 7.2 7.2 8.2 8.2 8.2 9.2 9.2 9.2 10.2 10.2 10.2 11.2 11.2 11.2 12.2 12.2 12.2 14.2 14.2 14.2 16.3 16.3 18.3 18.3 20.4 20.4 22.4 25.4 28.5 31 36

De

8 10 10 12.5 12.5 14 14 16 16 16 18 18 18 20 20 20 22.5 22.5 22.5 25 25 25 28 28 28 31.5 31.5 35.5 35.5 40 40 45 50 56 63 71

0.4 0.4 0.5 0.5 0.7 0.5 0.8 0.4 0.6 0.9 0.45 0.7 1 0.5 0.8 1.1 0.6 0.8 1.25 0.7 0.9 1.5 0.8 1 1.5 0.8 1.25 0.9 1.25 1 1.5 1.25 1.25 1.5 1.8 2

t

0.60 0.70 0.75 0.85 1.00 0.90 1.10 0.90 1.05 1.25 1.05 1.20 1.40 1.15 1.35 1.55 1.40 1.45 1.75 1.60 1.60 2.05 1.80 1.80 2.15 1.85 2.15 2.05 2.25 2.30 2.65 2.85 2.85 3.45 4.15 4.60

lo

Dimensions

0.20 0.30 0.25 0.35 0.30 0.40 0.30 0.50 0.45 0.35 0.60 0.50 0.40 0.65 0.55 0.45 0.80 0.65 0.50 0.90 0.70 0.55 1.00 0.80 0.65 1.05 0.90 1.15 1.00 1.30 1.15 1.60 1.60 1.95 2.35 2.60

ho 0.500 0.750 0.500 0.700 0.429 0.800 0.375 1.250 0.750 0.389 1.333 0.714 0.400 1.300 0.688 0.409 1.333 0.813 0.400 1.286 0.778 0.367 1.250 0.800 0.433 1.313 0.720 1.278 0.800 1.300 0.767 1.280 1.280 1.300 1.306 1.300

ho/t

lt 0.57 0.65 0.71 0.80 0.95 0.84 1.05 0.82 0.98 1.20 0.96 1.12 1.34 1.05 1.27 1.48 1.28 1.35 1.67 1.46 1.49 1.97 1.65 1.68 2.05 1.69 2.01 1.88 2.10 2.10 2.48 2.61 2.61 3.16 3.80 4.21

0.03 0.05 0.04 0.05 0.05 0.06 0.05 0.08 0.07 0.05 0.09 0.08 0.06 0.10 0.08 0.07 0.12 0.10 0.08 0.14 0.11 0.08 0.15 0.12 0.10 0.16 0.14 0.17 0.15 0.20 0.17 0.24 0.24 0.29 0.35 0.39 45 56 74 67 150 70 177 54 104 195 74 144 254 88 171 320 147 184 416 209 224 567 265 279 599 238 475 276 428 353 639 635 521 885 1436 1748

F 183 129 196 113 242 87 235 -5 105 198 -20 119 206 -14 115 212 -21 88 221 -12 97 223 -7 87 205 -17 120 -11 84 -14 98 -12 -10 -16 -18 -17

sII 247 304 261 227 265 238 241 242 247 209 251 254 222 247 231 231 279 239 230 295 231 214 294 235 232 260 263 240 232 247 241 284 234 274 304 304

sIII

Preload, s = 0.15 ho s

K Plain

0.05 0.08 0.06 0.09 0.08 0.10 0.08 0.13 0.11 0.09 0.15 0.13 0.10 0.16 0.14 0.11 0.20 0.16 0.13 0.23 0.18 0.14 0.25 0.20 0.16 0.26 0.23 0.29 0.25 0.33 0.29 0.40 0.40 0.49 0.59 0.65

s 0.55 0.62 0.69 0.76 0.92 0.80 1.02 0.77 0.94 1.16 0.90 1.07 1.30 0.99 1.21 1.44 1.20 1.29 1.62 1.37 1.42 1.91 1.55 1.60 1.99 1.59 1.92 1.76 2.00 1.97 2.36 2.45 2.45 2.96 3.56 3.95

lt 72 86 108 114 235 111 279 80 156 344 111 223 416 129 285 495 222 279 664 311 347 976 401 439 939 352 743 425 674 527 1031 961 787 1350 2187 2639

F 317 223 303 220 399 160 385 11 177 367 -13 209 353 -4 217 342 -13 155 368 5 173 400 12 160 336 -9 212 2 155 -3 182 4 2 -4 -3 -4

sII

s = 0.25 ho 405 476 386 398 417 387 379 381 379 370 406 403 363 383 395 358 450 374 368 470 369 369 475 382 366 410 422 397 377 395 401 458 378 448 496 491

sIII 0.10 0.15 0.13 0.18 0.15 0.20 0.15 0.25 0.23 0.18 0.30 0.25 0.20 0.33 0.28 0.23 0.40 0.33 0.25 0.45 0.35 0.28 0.50 0.40 0.33 0.53 0.45 0.58 0.50 0.65 0.58 0.80 0.80 0.98 1.18 1.30

s 0.50 0.55 0.62 0.67 0.85 0.70 0.95 0.65 0.82 1.07 0.75 0.95 1.20 0.82 1.07 1.32 1.00 1.12 1.50 1.15 1.25 1.77 1.30 1.40 1.82 1.32 1.70 1.47 1.75 1.65 2.07 2.05 2.05 2.47 2.97 3.30

lt 136 143 218 203 421 194 505 121 285 660 171 384 798 203 512 988 341 498 1227 475 594 1882 628 767 1842 550 1300 660 1177 808 1814 1495 1225 2089 3380 4088

F 691 497 723 516 797 395 762 108 450 780 77 469 751 94 506 765 91 401 751 125 406 845 142 395 746 89 488 103 383 90 442 123 98 105 121 115

sII

s = 0.5 ho 772 841 792 748 750 725 686 678 743 711 746 730 698 725 743 716 827 721 679 847 674 710 876 715 722 767 779 730 707 716 753 843 697 824 913 904

sIII 0.15 0.23 0.19 0.26 0.23 0.30 0.23 0.38 0.34 0.26 0.45 0.38 0.30 0.49 0.41 0.34 0.60 0.49 0.38 0.68 0.53 0.41 0.75 0.60 0.49 0.79 0.68 0.86 0.75 0.98 0.86 1.20 1.20 1.46 1.76 1.95

s 0.45 0.47 0.56 0.59 0.77 0.60 0.87 0.52 0.71 0.99 0.60 0.82 1.10 0.66 0.94 1.21 0.80 0.96 1.37 0.92 1.07 1.64 1.05 1.20 1.66 1.06 1.47 1.19 1.50 1.32 1.79 1.65 1.65 1.99 2.39 2.65

lt

193 196 304 269 620 258 750 143 380 926 197 528 1157 235 687 1412 392 655 1801 554 801 2684 739 1021 2632 634 1774 767 1567 939 2413 1744 1430 2418 3908 4744

F

1124 898 1142 842 1308 705 1237 306 773 1187 269 826 1195 285 839 1200 310 708 1214 372 726 1300 389 706 1182 286 855 293 685 285 767 359 288 321 369 358

sII

s = 0.75 ho 1102 1202 1103 1019 1097 1016 1007 939 1029 988 1020 1039 1003 984 1026 1015 1132 999 988 1167 951 1000 1203 1001 1025 1044 1102 992 990 984 1046 1156 955 1122 1245 1238

sIII

0.20 0.30 0.25 0.35 0.30 0.40 0.30 0.50 0.45 0.35 0.60 0.50 0.40 0.65 0.55 0.45 0.80 0.65 0.50 0.90 0.70 0.55 1.00 0.80 0.65 1.05 0.90 1.15 1.00 1.30 1.15 1.60 1.60 1.95 2.35 2.60

s

248 237 385 335 789 312 959 153 464 1217 206 645 1505 247 857 1823 410 789 2314 586 969 3524 792 1238 3394 666 2176 815 1899 989 2953 1851 1518 2551 4116 5004

F

s = ho

STANDARD FINISH

-1480 -1412 -1471 -1281 -1537 -1192 -1431 -911 -1230 -1435 -970 -1257 -1437 -944 -1279 -1438 -1086 -1177 -1414 -1142 -1142 -1496 -1182 -1182 -1441 -993 -1330 -961 -1161 -944 -1253 -1132 -928 -1083 -1213 -1195

s0M

D Au s t e n i t i c Sta i n l e s s Ste e l

STANDARD MATERIAL

Design Force, Deflection and Stresses Based on E = 190 kN/mm2 and µ = 0.3

TO ORDER: Product / De x Di x t / material code / finish code EXAMPLE: DSC 25 x 12.2 x 0.9 DK

STAINLESS STEEL DISC SPRINGS

Series

14

BALL BEARING DISC SPRINGS Di t

lo

ho De

Axial preloading of bearings with SPIROL bearing Disc Springs extends the bearing life and eliminates excessive running noise. One or more Disc Springs can be used. In most cases the outer race of the ball bearing is preloaded with the Disc Spring. In some cases it is desirable to preload the inner race. Accordingly, Disc Springs designed for the outer race of one bearing will also fit the inner race of another bearing. The recommended preload is achieved when the disc is deflected to 75% of the free cone heights (ho). The ho/t ratio is designed so that the spring load remains nearly constant for a large deflection range. Tolerance build up and variations resulting from expansion can be accommodated without a significant change in preload.

STANDARD MATERIALS B

“t” less than 1.25mm High Carbon Steel

W

“t” 1.25mm and thicker Alloy Steel Austempered to HRC 42 - 52 / HV 412 - 544

STANDARD FINISH R

Phosphate coated, oiled

Ball Bearing Size 623 624 625 626 607 608 609 600 6001

634 635 627 629

6002

6200 6201

6003

6202

6004 6005 6006 6007 6008 6009

6203

6300 6301

6204 6205

6302 6303 6304

6206

6305

6207

6010

6208 6209

6011 6012

6210

6013

6211

6014 6015

6212

6016

EL3 EL4 EL5 EL6 EL7 EL8 EL9

6213 6214

6306 6307 6308 6309 6310 6311

Dimensions

s = 0.75 ho

De Di t lo ho 9.8 12.8 15.8 18.8 18.8 21.8 23.7 25.7 27.7 29.7 31.7 34.6 34.6 36.6 39.6 41.6 46.5 51.5 54.5 61.5 67.5 71.5 71.5 74.5 79.5 79.5 84.5 89.5 89.5 94.5 99 99 109 109 114 119 119 124

6.2 7.2 8.2 9.2 10.2 12.3 14.3 14.3 17.3 17.4 20.4 20.4 22.4 20.4 25.5 25.5 30.5 35.5 40.5 40.5 50.5 45.5 50.5 55.5 50.5 55.5 60.5 60.5 65.5 75.5 65.5 70.5 70.5 75.5 90.5 75.5 85.5 90.5

0.2 0.25 0.25 0.3 0.35 0.35 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.9 0.9 0.9 1 1 1 1.25 1.25 1.25 1.25 1.25 1.25

0.4 0.5 0.55 0.65 0.7 0.75 0.9 0.9 1 1.1 1.1 1.1 1.2 1.3 1.3 1.4 1.5 1.5 1.5 1.8 1.7 2.1 2.1 1.9 2.3 2.3 2.5 2.5 2.5 2.2 2.6 2.6 2.7 2.7 2.45 2.8 2.8 3

0.2 0.25 0.3 0.35 0.35 0.4 0.5 0.5 0.6 0.7 0.7 0.7 0.7 0.8 0.8 0.9 0.9 0.9 0.9 1.1 1 1.4 1.4 1.1 1.5 1.5 1.6 1.6 1.6 1.2 1.6 1.6 1.45 1.45 1.2 1.55 1.55 1.75

s,mm F (N) 0.15 0.188 0.225 0.263 0.263 0.3 0.375 0.375 0.45 0.525 0.525 0.525 0.525 0.6 0.6 0.675 0.675 0.675 0.675 0.825 0.75 1.05 1.05 0.825 1.125 1.125 1.2 1.2 1.2 0.9 1.2 1.2 1.088 1.088 0.9 1.163 1.163 1.313

23.2 29.3 23 31.3 50.7 46.3 80.6 63.5 80 82.8 81 61.4 118.4 110.2 109.9 113.3 153.5 135.5 141.3 175.6 161.3 184.9 218.3 211.3 227.5 263.4 358.7 287.8 335.3 324.7 292.3 332.3 357.1 397.9 398.2 319.9 392.6 444.8

TO ORDER: Product / De x Di x t / material code / finish code EXAMPLE: BRG 41.6 x 25.5 x 0.5 BR

Note: All Ball Bearing Disc Springs are made to order.

Di

De

Predictable preloading of bearings results in quiet running and long life. Disc Springs may also be used to preload seals, packings, clutches and other machine elements.

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DISC SPRING APPLICATIONS Mechanical Braking System Application: Braking systems for off-highway equipment are commonly designed to be hydraulically actuated. In most cases, braking occurs when pressurized fluid compresses stationary friction discs against plates that rotate with the drive shaft. The amount of friction between each set of plates controls the deceleration of the vehicle. Without an additional fail safe system, this design alone has limited reliability. If a hydraulic seal is compromised, or the hydraulic cylinder loses pressure for any reason, the brakes fail.

Solution: The mechanical back-up design uses SPIROL® Disc Springs. Under normal circumstances, the hydraulic system holds a constant pressure on Disc Springs stacked in series. If pressure fails to be maintained, the stack of Disc Springs decompresses to actuate the braking mechanism. A compression spring or wave spring is not capable of providing the force required (in the space available) to actuate the brakes. The reliability of this safety system is dependent on the consistent performance of Disc Springs. In this critical application, the Disc Spring’s performance and level of predictability improves product quality and ensures overall safety. SPIROL® Disc Springs have a consistently high capacity to store potential mechanical energy. The conical design of SPIROL® Disc Springs makes their spring characteristics and performance more predictable than traditional compression springs. Disc Springs are also capable of providing more force in less space than a compression spring or wave spring. They are commonly stacked in multiples to achieve application specific spring rates: a stack in series provides less force over more travel; a stack in parallel provides more force over less travel. The precise tolerances of each individual Disc Spring provides unparalleled performance predictability when they are stacked (either in series or in parallel). SPIROL® Disc Springs also allow fatigue endurance to be predicted. Stress analysis enables the minimum cycle life of Disc Springs (singularly or stacked) to be calculated as a part of the application’s design.

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DISC SPRING APPLICATIONS Pick-Off Unit for CNC Machines Application: Pick-off spindles in CNC screw machines are designed to hold a part as it is cut to length and then finished. The spindle uses a collet to release the part when it is complete and then clinch a new part. When the machine is setup, the clamping force required to hold each part in the collet must be precisely calibrated to prevent the finished product from slipping (if the force is too low) or being crushed (if the force is too high). This calibration is dependent on the geometry and material of the final product. After calibration, the quality of the finished product relies on a consistent clamping force for thousands of cycles at a time.

Solution: Left: Disc Springs are compressed, collet is open. Right: Disc Springs are uncompressed, collet is closed, work piece is clinched.

This high degree of reliability is provided by SPIROL® Disc Springs. When the collet is opened, 16 SPIROL® Disc Springs stacked in series are compressed by a hydraulic cylinder. Each time the force from the cylinder is released, SPIROL® Disc Springs provide a consistent force to close the collet on the part.

Pipe Supports for Industrial Pipe Systems Application: As mandated by the ASME code for pressure piping, proper design and installation is critical for the performance and safety of piping systems. Industrial pipe systems are primarily supported by rod hangers, base line or base elbow supports. While these static supports are used to carry weight, dynamic supports are necessary to control loads on the pipe system.

Solution: For example, in heat exchanger applications, SPIROL® Disc Springs are used to accept thermal dynamics. As the temperature of the fluid within the pipe changes, the pipe will expand (when hot) and contract (when cold) accordingly. SPIROL® Disc Springs support the system by maintaining a constant pressure at any temperature. This consistency is transmitted to the pipe joint and is essential for maintaining a proper seal. A well sealed gasket prevents fluids from escaping and reduces costly maintenance. SPIROL® Disc Springs offer an advantage to coil springs by providing an equivalent displacement in a fraction of the space. In many instances, such as under a heat exchangers bottom flange, this space savings is required. SPIROL® Disc Springs are the solution to providing a robust, maintenance free support system for industrial pipe systems.

Disc Spring

Coil Spring

A coil spring cannot provide the proper support given the limited space in this example. Only a Disc Spring stack is able to package the required load and travel in the restricted space.

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Innovative fastening solutions. Lower assembly costs.

Americas

Technical Centers SPIROL International Corporation 30 Rock Avenue Danielson, Connecticut 06239 U.S.A. Tel. +1 860 774 8571 Fax. +1 860 774 2048 SPIROL Shim Division 321 Remington Road Stow, Ohio 44224 U.S.A. Tel. +1 330 920 3655 Fax. +1 330 920 3659 SPIROL West 1950 Compton Avenue, Suite 112 Corona, California 92881 U.S.A. Tel. +1 951 273 5900 Fax. +1 951 273 5907

Slotted Spring Pins Solid Pins

SPIROL Canada 3103 St. Etienne Boulevard Windsor, Ontario N8W 5B1 Canada Tel. +1 519 974 3334 Fax. +1 519 974 6550

Coiled Spring Pins

SPIROL Mexico Carretera a Laredo KM 16.5 Interior E Col. Moisés Saenz Apodaca, N.L. 66613 Mexico Tel. +52 81 8385 4390 Fax. +52 81 8385 4391

Ground Hollow Dowels Dowel Bushings / Spring Dowels

SPIROL Brazil Rua Mafalda Barnabé Soliane, 134 Comercial Vitória Martini, Distrito Industrial CEP 13347-610, Indaiatuba, SP, Brazil Tel. +55 19 3936 2701 Fax. +55 19 3936 7121

Compression Limiters Rolled Tubular Components

Inserts for Plastics

Europe SPIROL France

Cité de l’Automobile ZAC Croix Blandin 18 Rue Léna Bernstein 51100 Reims, France Tel. +33 3 26 36 31 42 Fax. +33 3 26 09 19 76 SPIROL United Kingdom 17 Princewood Road Corby, Northants NN17 4ET United Kingdom Tel. +44 1536 444800 Fax. +44 1536 203415

Spacers Precision Washers

Precision Shims & Thin Metal Stampings

SPIROL Germany

Ottostr. 4

80333 Munich, Germany Tel. +49 89 4 111 905 71 Fax. +49 89 4 111 905 72 SPIROL Spain 08940 Cornellà de Llobregat Barcelona, Spain Tel. +34 93 193 05 32 Fax. +34 93 193 25 43

Disc Springs

SPIROL Czech Republic Sokola Tůmy 743/16 Ostrava-Mariánské Hory 70900 Czech Republic Tel/Fax. +420 417 537 979

Installation Technology

SPIROL Poland ul. M. Skłodowskiej-Curie 7E / 2 56-400, Oleśnica, Poland Tel. +48 71 399 44 55

Parts Feeding Technology

Asia SPIROL Asia Headquarters Pacific 1st Floor, Building 22, Plot D9, District D No. 122 HeDan Road Wai Gao Qiao Free Trade Zone Shanghai, China 200131 Tel. +86 21 5046 1451 Fax. +86 21 5046 1540

Please refer to www.SPIROL.com for current specifications and standard product offerings.

SPIROL Application Engineers will review your application needs and work with you to recommend the optimum solution. One way to start the process is to visit our Optimal Application Engineering portal at SPIROL.com. © 2016 SPIROL International Corporation 11/14 Rev. 1

SPIROL Korea 160-5 Seokchon-Dong Songpa-gu, Seoul, 138-844, Korea Tel. +86 (0) 21 5046-1451 Fax. +86 (0) 21 5046-1540

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