Calculo do binário

Cálculo do torque admissível do aperto do parafuso


Onde:

[kgf.mm]

- 3,1415

C = Coeficiente de correçãoC = 0,15 - com lubrificaçãoC = 0,20 - sem lubrificação

Considerando C sem lubrificação, temos:

Para parafusos da série métrica temos:

- Classe 4.6 - Classe 5.8 - Classe 8.8tr = 40 Kgf/mm2 tr = 50 Kgf/mm2 tr = 80 Kgf/mm2te = 24 Kgf/mm2 te = 40 Kgf/mm2 te = 64 Kgf/mm2

- Classe 9.8 - Classe 10.9 - Classe 12.9tr = 90 Kgf/mm2 tr = 100 Kgf/mm2 tr = 120 Kgf/mm2te = 72 Kgf/mm2 te = 90 Kgf/mm2 te = 108 Kgf/mm2

Para parafusos da série polegada temos:

- Grau 1 - Grau 2 - Grau 5tr = 42 Kgf/mm2 tr = 52 Kgf/mm2 tr = 84 Kgf/mm2te = 25.3 Kgf/mm2 te = 40 Kgf/mm2 te = 64.7 Kgf/mm2

- Grau 7 - Grau 8tr = 93.5 Kgf/mm2 tr = 105.4 Kgf/mm2te = 80.8 Kgf/mm2 te = 91.4 Kgf/mm2


TORQUE ADMISSÍVEL [Kgf*m] - SÉRIE MÉTRICA

ITEM BITOLA

TENSÃO ADMISSÍVEL = 90% DA TENSÃO DE ESCOAMENTO

AF CL 4.6 CL 5.8 CL 8.8 CL 9.8 CL 10.8

CL 12.9

01 MA 5 13,614 0,294 0,490 0,784 0,882 1,103 1,323

02 MB 5 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

03 MA 6 19,333 0,501 0,835 1,336 1,503 1,879 2,255

04 MB 6 21,661 0,561 0,935 1,497 1,684 2,105 2,526

05 MA 8 35,441 1,225 2,041 3,266 3,675 4,593 5,512

06 MB 8 38,062 1,315 2,192 3,507 3,946 4,933 5,919

07 MA 10 56,318 2,433 4,054 6,488 7,299 9,124 10,948

08 MB 10 63,074 2,724 4,541 7,266 8,174 10,218 12,262

09 MA 12 81,993 4,250 7,084 11,334 12,752 15,939 19,127

10 MB 12 85,997 4,458 7,430 11,888 13,374 16,718 20,061

11 MA 14 112,523 6,805 11,342 18,147 20,416 25,520 30,624

12 MB 14 122,012 7,379 12,298 19,678 22,138 27,672 33,207

13 MA 16 152,268 10,594 17,656 28,250 31,782 39,727 47,672

14 MB 16 164,311 11,357 18,928 30,286 34,072 42,589 51,107

15 MA 20 240,047 20,740 34,566 55,307 62,220 77,775 93,330

16 MB 20 267,757 23,134 38,557 61,691 69,403 86,753 104,104



ITEM BITOLA

TENSÃO ADMISSÍVEL = TENSÃO DE ESCOAMENTOAF CL 4.6 CL 5.8 CL 8.8 CL 9.8 CL 10.8 CL 12.9

01 MA 5 13,614 0,327 0,544 0,871 0,980 1,225 1,470

02 MB 5 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

03 MA 6 19,333 0,557 0,927 1,485 1,670 2,087 2,506

04 MB 6 21,661 0,624 1,038 1,664 1,872 2,338 2,807

05 MA 8 35,441 1,361 2,267 3,629 4,083 5,103 6,124

06 MB 8 38,062 1,462 2,435 3,898 4,385 5,481 6,577

07 MA 10 56,318 2,703 4,505 7,209 8,110 10,137 12,165

08 MB 10 63,074 3,027 5,045 8,073 9,083 11,353 13,624

09 MA 12 81,993 4,723 7,871 12,594 14,168 17,710 21,253

10 MB 12 85,997 4,948 8,255 13,209 14,860 18,575 22,290

11 MA 14 112,523 7,562 12,602 20,164 22,685 28,355 34,027

12 MB 14 122,012 8,199 13,665 21,865 24,598 30,746 36,896

13 MA 16 153,012 11,771 19,618 31,389 35,313 44,141 52,969

14 MB 16 164,311 12,619 21,031 33,651 37,857 47,321 56,786

15 MA 20 240,047 23,045 38,407 61,452 69,134 86,416 103,700

16 MB 20 267,757 25,705 42,841 68,546 77,114 96,392 115,671



ITEM BITOLA

TENSÃO ADMISSÍVEL = 80% DA TENSÃO DE RUPTURA

T.AD. = 90% DA T.R.

AF CL 4.6 CL 5.8 CL 8.8 CL 9.8 CL 10.8

CL 12.9

01 MA 5 13,614 0,436 0,544 0,871 1,103 1,225 1,470

02 MB 5 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

03 MA 6 19,333 0,742 0,927 1,485 1,879 2,088 2,506

04 MB 6 21,661 0,832 1,039 1,664 2,215 2,339 2,807

05 MA 8 35,441 1,815 2,268 3,629 4,593 5,104 6,124

06 MB 8 38,062 1,949 2,435 3,898 4,933 5,481 6,577

07 MA 10 56,318 3,604 4,505 7,209 9,124 10,137 12,165

08 MB 10 63,074 4,037 5,045 8,073 10,218 11,353 13,624

09 MA 12 81,993 6,297 7,871 12,594 15,939 17,710 21,253

10 MB 12 85,997 6,605 8,255 13,209 16,718 18,575 22,290

11 MA 14 112,523 10,082 12,602 20,164 25,520 28,356 34,027

12 MB 14 122,012 10,932 13,665 21,865 27,672 30,747 36,896

13 MA 16 152,268 15,695 19,618 31,389 39,727 44,141 52,969

14 MB 16 164,311 16,825 21,031 33,651 42,589 47,322 56,786

15 MA 20 240,047 30,726 38,407 61,452 77,775 86,417 103,700

16 MB 20 267,757 34,273 42,841 68,546 86,753 96,393 115,671



ITEM BITOLA

TENSÃO ADMISSÍVEL = TENSÃO DE RUPTURAAF CL 4.6 CL 5.8 CL 8.8 CL 9.8 CL 10.8 CL 12.9

01 MA 5 13,614 0,545 0,680 1,089 1,225 1,361 1,634

02 MB 5 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

03 MA 6 19,333 0,928 1,159 1,856 2,088 2,319 2,784

04 MB 6 21,661 1,040 1,299 2,079 2,339 2,599 3,119

05 MA 8 35,441 2,268 2,835 4,536 5,104 5,671 6,804

06 MB 8 38,062 2,436 3,044 4,872 5,481 6,090 7,308

07 MA 10 56,318 4,505 5,631 9,011 10,137 11,263 13,517

08 MB 10 63,074 5,046 6,307 10,092 11,353 12,614 15,138

09 MA 12 81,993 7,871 9,839 15,743 17,710 19,678 23,614

10 MB 12 85,997 8,256 10,319 16,511 18,575 20,639 24,767

11 MA 14 112,523 12,603 15,735 25,205 28,356 31,507 37,808

12 MB 14 122,012 13,665 17,081 27,331 30,747 34,163 40,996

13 MA 16 153,268 19,618 24,522 39,237 44,141 49,046 58,854

14 MB 16 164,311 21,032 26,289 42,064 47,322 52,580 63,096

15 MA 20 240,047 38,408 48,009 76,815 86,417 96,019 115,222

16 MB 20 267,757 42,841 53,551 85,682 96,393 107,103 128,523


TORQUE ADMISSÍVEL [Kgf*m] - SÉRIE POLEGADA

ITEM BITOLA

TENSÃO ADMISSÍVEL = 90% DA TENSÃO DE ESCOAMENTOD AF G.1 G.2 G.5 G.7 G.8

01 3/16” UNC 4,725 11,260 0,244 0,386 0,624 0,780 0,88202 3/16” UNF 4,725 12,817 0,278 0,439 0,711 0,888 1,00403 1/4” UNC 6,350 20,486 0,592 0,936 1,515 1,892 2,14004 1/4” UNF 6,350 23,351 0,675 1,067 1,727 2,157 2,43905 5/16” UNC 7,9375 33,766 1,221 1,930 3,122 3,898 4,40906 5/16” UNF 7,9375 37,315 1,349 2,133 3,450 4,308 4,87307 3/8” UNC 9,525 49,943 2,167 3,427 5,543 6,919 7,82608 3/8” UNF 9,525 56,474 2,451 3,875 6,268 7,823 8,85009 7/16” UNC 11,1125 68,590 3,470 5,486 8,874 11,086 12,54010 7/16” UNF 11,1125 76,379 3,864 6,109 9,882 12,344 13,96411 1/2” UNC 12,7 91,544 5,294 8,370 13,539 16,909 19,12712 1/2” UNF 12,7 102,937 6,792 10,739 17,371 19,013 21,50813 1/2” BSW 12,7 88,764 5,133 8,116 13,128 16,395 18,54614 9/16” UNC 14,2875 117,449 7,638 12,075 19,532 24,406 27,60715 9/16” UNF 14,2875 130,671 8,497 13,435 21,731 27,153 30,71516 5/8” UNC 15,875 145,994 10,558 16,692 27,000 33,708 38,13017 5/8” UNF 15,875 164,786 11,917 18,841 30,475 38,047 43,03818 3/4” UNC 19,05 215,981 18,737 29,624 47,916 59,840 67,69119 3/4 UNF 19,05 240,264 20,843 32,954 53,304 66,568 75,30120 7/8” UNC 22,22 298,064 30,16098 47,68542 77,1311 96,3240 108,960821 7/8” UNF 22,22 328,386 33,2289 52,53642 84,9776 106,123 120,045722 1” UNC 25,40 390,966 45,76545 71,49942 115,651 144,4297 163,376623 1” UNF 25,40 427,741 49,47696 78,22512 126,5289 158,0147 178,744424 1.1/8” UNC 28,57 492,257 64,04643 101,2589 163,7864 204,5431 231,376825 1.1/8” UNF 28,57 552,257 71,85276 113,6013 183,7503 229,4747 259,579326 1.1/4” UNC 31,75 625,160 90,39132 142,9115 231,1592 288,6812 326,552427 1.1/4” UNF 31,75 692,257 100,093 158,2496 255,9694 319,6646 361,600328 1.1/2” UNC 38,10 906,449 157,2748 248,6566 402,2029 502,2867 568,180429 1.1/2” UNF 38,10 1019,998 176,9768 279,8056 452,5857 565,207 639,3556


TORQUE ADMISSÍVEL [Kgf*m] - SÉRIE POLEGADA

ITEM BITOLA

TENSÃO ADMISSÍVEL = TENSÃO DE ESCOAMENTOD AF G.1 G.2 G.5 G.7 G.8

01 3/16” UNC 4,725 11,260 0,271 0,429 0,694 0,867 0,98002 3/16” UNF 4,725 12,817 0,309 0,488 0,790 0,986 1,11603 1/4” UNC 6,350 20,486 0,658 1,041 1,683 2,102 2,37804 1/4” UNF 6,350 23,351 0,750 1,186 1,919 2,396 2,71105 5/16” UNC 7,9375 33,766 1,356 2,144 3,468 4,331 4,90006 5/16” UNF 7,9375 37,315 1,499 2,370 3,833 4,786 5,41407 3/8” UNC 9,525 49,943 2,407 3,806 6,156 7,687 8,69608 3/8” UNF 9,525 56,474 2,719 4,303 6,961 8,693 9,83309 7/16” UNC 11,1125 68,590 3,857 6,098 9,863 12,317 13,93310 7/16” UNF 11,1125 76,379 4,295 6,790 10,983 13,716 15,51511 1/2” UNC 12,7 91,544 5,883 9,301 15,044 18,788 21,25212 1/2” UNF 12,7 102,937 6,615 10,485 16,916 21,126 23,89713 1/2” BSW 12,7 88,764 5,704 9,018 14,587 18,217 20,60714 9/16” UNC 14,2875 117,449 8,491 13,424 21,714 27,117 30,67515 9/16” UNF 14,2875 130,671 9,447 14,936 24,158 30,170 34,12816 5/8” UNC 15,875 145,994 11,727 18,541 29,990 37,453 42,36717 5/8” UNF 15,875 164,786 13,237 20,928 33,851 42,274 47,82018 3/4” UNC 19,05 215,981 20,819 32,916 53,241 66,489 75,21219 3/4 UNF 19,05 240,264 23,160 36,616 59,227 73,965 83,66820 7/8” UNC 22,22 298,064 33,5122 52,9838 85,7013 107,0267 121,067621 7/8” UNF 22,22 328,386 36,9210 58,3738 94,4196 117,9144 133,384122 1” UNC 25,40 390,966 50,8505 79,4438 128,5011 160,4774 181,529523 1” UNF 25,40 427,741 54,9744 86,9168 140,5877 175,5719 198,604924 1.1/8” UNC 28,57 492,257 71,1627 112,5099 181,9849 227,2701 257,085325 1.1/8” UNF 28,57 552,257 79,8364 126,2237 204,167 254,9719 288,421426 1.1/4” UNC 31,75 625,160 100,4348 158,7906 256,8436 320,7569 362,83627 1.1/4” UNF 31,75 692,257 111,2144 175,8329 284,4104 355,1829 401,778128 1.1/2” UNC 38,10 906,449 174,7498 276,2851 446,8921 558,0963 631,311629 1.1/2” UNF 38,10 1019,998 196,6409 310,8951 502,873 628,0078 710,3951

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Calculo do binário