Ieteicamās sākuma vērtības
Tālāk sniegtie aplēstā griezes momenta aprēķini tiek piedāvāti tikai kā ceļvedis. Par tā satura izmantošanu jebkura persona ir atbildīga tikai šī persona, un viņi uzņemas visu risku.
Daudzu mainīgo lielumu dēļ, kas ietekmē griezes momenta un spriegojuma attiecības, piemēram, cilvēka kļūdas, virsmas tekstūra un eļļošana, vienīgais veids, kā noteikt pareizo griezes momentu, ir eksperimentēt faktiskos savienojuma un montāžas apstākļos..
ASTM A307
Skrūves izmērs |
TPI |
Pārbaudāmā slodze (mārciņas)1 |
Skavas slodze (mārciņas)2 |
Pievilkšanas griezes moments (ft-lbs) |
Galvas+vaskots |
Galv |
līdzenums |
1⁄4 |
20 |
1,053 |
790 |
2 |
4 |
3 |
5⁄16 |
18 |
1,735 |
1,302 |
3 |
8 |
7 |
3⁄8 |
16 |
2,567 |
1,925 |
6 |
15 |
12 |
7⁄16 |
14 |
3,521 |
2,640 |
10 |
24 |
19 |
1⁄2 |
13 |
4,700 |
3,525 |
15 |
37 |
29 |
9⁄16 |
12 |
6,028 |
4,521 |
21 |
53 |
42 |
5⁄8 |
11 |
7,485 |
5,614 |
29 |
73 |
58 |
3⁄4 |
10 |
11,062 |
8,297 |
52 |
130 |
104 |
7⁄8 |
9 |
15,301 |
11,476 |
84 |
209 |
167 |
1 |
8 |
20,071 |
15,053 |
125 |
314 |
251 |
11⁄8 |
7 |
25,271 |
18,953 |
178 |
444 |
355 |
11⁄4 |
7 |
32,093 |
24,070 |
251 |
627 |
501 |
13⁄8 |
6 |
38,254 |
28,690 |
329 |
822 |
657 |
11⁄2 |
6 |
46,534 |
34,900 |
436 |
1,091 |
873 |
13⁄4 |
5 |
62,928 |
47,196 |
688 |
1,721 |
1,377 |
2 |
41⁄2 |
82,800 |
62,100 |
1,035 |
2,588 |
2,070 |
21⁄4 |
41⁄2 |
107,640 |
80,730 |
1,514 |
3,784 |
3,027 |
21⁄2 |
4 |
132,480 |
99,360 |
2,070 |
5,125 |
4,140 |
23⁄4 |
4 |
163,282 |
122,461 |
2,806 |
7,016 |
5,613 |
3 |
4 |
197,726 |
148,295 |
3,707 |
9,268 |
7,415 |
31⁄4 |
4 |
235,152 |
176,364 |
4,777 |
11,941 |
9,553 |
31⁄2 |
4 |
275,890 |
206,917 |
6,035 |
15,088 |
12,070 |
33⁄4 |
4 |
319,939 |
239,954 |
7,499 |
18,746 |
14,997 |
4 |
4 |
366,970 |
275,227 |
9,174 |
22,936 |
18,348 |
SAE pakāpe 2
Skrūves izmērs |
TPI |
Pārbaudāmā slodze (mārciņas) 1 |
Skavas slodze (mārciņas) 2 |
Pievilkšanas griezes moments (ft-lbs) |
Galvas+vaskots |
Galv |
līdzenums |
1⁄4 |
20 |
1,750 |
1,313 |
3 |
7 |
5 |
5⁄16 |
18 |
2,900 |
2,175 |
6 |
14 |
11 |
3⁄8 |
16 |
4,250 |
3,188 |
10 |
25 |
20 |
7⁄16 |
14 |
5,850 |
4,388 |
16 |
40 |
32 |
1⁄2 |
13 |
7,800 |
5,850 |
24 |
61 |
49 |
9⁄16 |
12 |
10,000 |
7,500 |
35 |
88 |
70 |
5⁄8 |
11 |
12,400 |
9,300 |
48 |
121 |
97 |
3⁄4 |
10 |
18,400 |
13,800 |
86 |
216 |
173 |
7⁄8 |
9 |
15,200 |
11,400 |
83 |
208 |
166 |
1 |
8 |
20,000 |
15,000 |
125 |
313 |
250 |
11⁄8 |
7 |
25,200 |
18,900 |
177 |
443 |
354 |
11⁄4 |
7 |
32,000 |
24,000 |
250 |
625 |
500 |
13⁄8 |
6 |
38,100 |
28,575 |
327 |
819 |
655 |
11⁄2 |
6 |
46,400 |
34,800 |
435 |
1,088 |
870 |
ASTM A325
Skrūves izmērs |
TPI |
Saspīlējums |
Pievilkšanas griezes momenta diapazons (ft-lbs) (min.–maks.) |
Min |
Max |
Galvas+vaskots |
līdzenums |
1⁄2 |
13 |
12,000 |
14,000 |
50 - 58 |
100 - 117 |
5⁄8 |
11 |
19,000 |
23,000 |
99 - 120 |
198 - 240 |
3⁄4 |
10 |
28,000 |
34,000 |
175 - 213 |
350 - 425 |
7⁄8 |
9 |
39,000 |
47,000 |
284 - 343 |
569 - 685 |
1 |
8 |
51,000 |
61,000 |
425 - 508 |
850 - 1,017 |
11⁄8 |
7 |
64,000 |
77,000 |
600 - 722 |
1,200 - 1,444 |
11⁄4 |
7 |
81,000 |
98,000 |
844 - 1,021 |
1,687 - 2,042 |
13⁄8 |
6 |
97,000 |
117,000 |
1,111 - 1,341 |
2,223 - 2,681 |
11⁄2 |
6 |
118,000 |
143,000 |
1,475 - 1,788 |
2,950 - 3,575 |
ASTM A449/SAE 5. klase*
Skrūves izmērs |
TPI |
Pārbaudāmā slodze (mārciņas) 1 |
Skavas slodze (mārciņas) 2 |
Pievilkšanas griezes moments (ft-lbs) |
Galvas+vaskots |
Galv |
līdzenums |
1⁄4 |
20 |
2,700 |
2,025 |
4 |
11 |
8 |
5⁄16 |
18 |
4,450 |
3,338 |
9 |
22 |
17 |
3⁄8 |
16 |
6,600 |
4,950 |
15 |
39 |
31 |
7⁄16 |
14 |
9,050 |
6,788 |
25 |
62 |
49 |
1⁄2 |
13 |
12,050 |
9,038 |
38 |
94 |
75 |
9⁄16 |
12 |
15,450 |
11,588 |
54 |
136 |
109 |
5⁄8 |
11 |
19,200 |
14,400 |
75 |
188 |
150 |
3⁄4 |
10 |
28,400 |
21,300 |
133 |
333 |
266 |
7⁄8 |
9 |
39,250 |
29,438 |
215 |
537 |
429 |
1 |
8 |
51,500 |
38,625 |
322 |
805 |
644 |
11⁄8 |
7 |
56,450 |
42,338 |
397 |
992 |
794 |
11⁄4 |
7 |
71,700 |
53,775 |
560 |
1,400 |
1,120 |
13⁄8 |
6 |
85,450 |
64,088 |
734 |
1,836 |
1,469 |
11⁄2 |
6 |
104,000 |
78,000 |
975 |
2,438 |
1,950 |
13⁄4 |
5 |
104,500 |
78,375 |
1,143 |
2,857 |
2,286 |
2 |
41⁄2 |
137,500 |
103,125 |
1,719 |
4,297 |
3,438 |
21⁄4 |
41⁄2 |
178,750 |
134,063 |
2,514 |
6,284 |
5,027 |
21⁄2 |
4 |
220,000 |
165,000 |
3,438 |
8,594 |
6,875 |
23⁄4 |
4 |
271,150 |
203,363 |
4,660 |
11,651 |
9,321 |
3 |
4 |
328,350 |
246,263 |
6,157 |
15,391 |
12,313 |
* SAE J429 5. klases skrūvju diametrs nepārsniedz 1–1/2 collas. |
ASTM A193 B7 / ASTM A320 L7 / ASTM A354 BC
Skrūves izmērs |
TPI |
Pārbaudāmā slodze (mārciņas) 1 |
Skavas slodze (mārciņas) 2 |
Pievilkšanas griezes moments (ft-lbs) |
Galvas+vaskots |
Galv |
līdzenums |
1⁄4 |
20 |
3,350 |
2,513 |
5 |
13 |
10 |
5⁄16 |
18 |
5,500 |
4,125 |
11 |
27 |
21 |
3⁄8 |
16 |
8,150 |
6,113 |
19 |
48 |
38 |
7⁄16 |
14 |
11,150 |
8,363 |
30 |
76 |
61 |
1⁄2 |
13 |
14,900 |
11,175 |
47 |
116 |
93 |
9⁄16 |
12 |
19,100 |
14,325 |
67 |
168 |
134 |
5⁄8 |
11 |
23,750 |
17,813 |
93 |
232 |
186 |
3⁄4 |
10 |
35,050 |
26,288 |
164 |
411 |
329 |
7⁄8 |
9 |
48,500 |
36,375 |
265 |
663 |
530 |
1 |
8 |
63,650 |
47,738 |
398 |
995 |
796 |
11⁄8 |
7 |
80,100 |
60,075 |
563 |
1,408 |
1,126 |
11⁄8 |
8 |
82,934 |
62,201 |
583 |
1,458 |
1,166 |
11⁄4 |
7 |
101,750 |
76,313 |
795 |
1,987 |
1,590 |
11⁄4 |
8 |
105,006 |
78,754 |
820 |
2,051 |
1,641 |
13⁄8 |
6 |
121,300 |
90,975 |
1,042 |
2,606 |
2,085 |
13⁄8 |
8 |
129,492 |
97,119 |
1,113 |
2,782 |
2,226 |
11⁄2 |
6 |
147,550 |
110,663 |
1,383 |
3,458 |
2,767 |
11⁄2 |
8 |
156,687 |
117,515 |
1,469 |
3,672 |
2,938 |
13⁄4 |
5 |
199,500 |
149,625 |
2,182 |
5,455 |
4,364 |
13⁄4 |
8 |
218,400 |
163,800 |
- |
- |
4,778 |
2 |
41⁄2 |
262,500 |
196,875 |
3,281 |
8,203 |
6,563 |
2 |
8 |
290,850 |
218,138 |
- |
- |
7,271 |
21⁄4 |
41⁄2 |
341,250 |
255,938 |
4,799 |
11,997 |
9,598 |
21⁄4 |
8 |
373,801 |
280,351 |
- |
- |
10,513 |
21⁄2 |
4 |
420,000 |
315,000 |
6,563 |
16,406 |
13,125 |
21⁄2 |
8 |
466,200 |
349,650 |
- |
- |
14,569 |
23⁄4 |
4 |
468,500 |
351,263 |
8,050 |
20,124 |
16,100 |
23⁄4 |
8 |
515,851 |
386,888 |
- |
- |
17,732 |
3 |
4 |
567,150 |
425,363 |
10,634 |
26,585 |
21,268 |
3 |
8 |
618,451 |
463,838 |
- |
- |
23,192 |
31⁄4 |
4 |
674,500 |
505,875 |
13,701 |
34,252 |
27,402 |
31⁄4 |
8 |
730,550 |
547,913 |
- |
- |
29,679 |
31⁄2 |
4 |
791,350 |
593,513 |
17,311 |
43,277 |
34,622 |
31⁄2 |
8 |
851,201 |
638,401 |
- |
- |
37,240 |
33⁄4 |
4 |
917700 |
688275 |
21,509 |
53,771 |
43,017 |
33⁄4 |
8 |
982,300 |
736,725 |
- |
- |
46,045 |
4 |
4 |
1052600 |
789450 |
26,315 |
65,788 |
52,630 |
4 |
8 |
1,121,950 |
841,463 |
- |
- |
56,098 |
ASTM A490
Skrūves izmērs |
TPI |
Spriedze (mārciņas) |
Pievilkšanas griezes momenta diapazons (ft-lbs) (min.–maks.) |
Min |
Max |
līdzenums |
Ieeļļots |
1⁄2 |
13 |
15,000 |
18,000 |
125 - 150 |
63 - 75 |
5⁄8 |
11 |
24,000 |
29,000 |
250 - 302 |
125 - 151 |
3⁄4 |
10 |
35,000 |
42,000 |
438 - 525 |
219 - 263 |
7⁄8 |
9 |
49,000 |
59,000 |
715 - 860 |
357 - 430 |
1 |
8 |
64,000 |
77,000 |
1,067 - 1,283 |
533 - 642 |
11⁄8 |
7 |
80,000 |
96,000 |
1,500 - 1,800 |
750 - 900 |
11⁄4 |
7 |
102,000 |
122,000 |
2,125 - 2,542 |
1,063 - 1,271 |
13⁄8 |
6 |
121,000 |
145,000 |
2,773 - 3,323 |
1,386 - 1,661 |
11⁄2 |
6 |
148,000 |
178,000 |
3,700 - 4,450 |
1,850 - 2,225 |
ASTM A354-BD/SAE 8. klase*
Skrūves izmērs |
TPI |
Pārbaudāmā slodze (mārciņas) 1 |
Skavas slodze (mārciņas) 2 |
Pievilkšanas griezes moments (ft-lbs) |
līdzenums |
Ieeļļots |
1⁄4 |
20 |
3,800 |
2,850 |
12 |
6 |
5⁄16 |
18 |
6,300 |
4,725 |
25 |
12 |
3⁄8 |
16 |
9,300 |
6,975 |
44 |
22 |
7⁄16 |
14 |
12,750 |
9,563 |
70 |
35 |
1⁄2 |
13 |
17,050 |
12,788 |
107 |
53 |
9⁄16 |
12 |
21,850 |
16,388 |
154 |
77 |
5⁄8 |
11 |
27,100 |
20,325 |
212 |
106 |
3⁄4 |
10 |
40,100 |
30,075 |
376 |
188 |
7⁄8 |
9 |
55,450 |
41,588 |
606 |
303 |
1 |
8 |
72,700 |
54,525 |
909 |
454 |
11⁄8 |
7 |
91,550 |
68,663 |
1,287 |
644 |
11⁄4 |
7 |
120,000 |
90,000 |
1,875 |
938 |
13⁄8 |
6 |
138,600 |
103,950 |
2,382 |
1,191 |
11⁄2 |
6 |
168,600 |
126,450 |
3,161 |
1,581 |
13⁄4 |
5 |
228,000 |
171,000 |
4,988 |
2,494 |
2 |
41⁄2 |
300,000 |
225,000 |
7,500 |
3,750 |
21⁄4 |
41⁄2 |
390,000 |
292,500 |
10,969 |
5,484 |
21⁄2 |
4 |
480,000 |
360,000 |
15,000 |
7,500 |
23⁄4 |
4 |
517,650 |
388,238 |
17,794 |
8,897 |
3 |
4 |
626,850 |
470,138 |
23,507 |
11,753 |
31⁄4 |
4 |
745,500 |
559,125 |
30,286 |
15,143 |
31⁄2 |
4 |
874,650 |
655,988 |
38,266 |
19,133 |
33⁄4 |
4 |
1,014,300 |
760,725 |
47,545 |
23,773 |
4 |
4 |
1,163,400 |
872,550 |
58,100 |
29,085 |
* SAE J429 8. klases skrūvju diametrs nepārsniedz 1–1/2 collas. |