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Podkładki Nord-Lock: Dobór momentu skręcającego

Wszystkie wartości momentów skręcających wyliczono doświadczalnie w naszym laboratorium z użyciem kalibrowanych kluczy dynamometrycznych i czujników tensometrycznych dla wszystkich standardowych materiałów i rozmiarów podkładek. Są to wartości zalecane w celu osiągnięcia relatywnie wysokiej ale jednocześnie bezpiecznej wartości naprężenia wstępnego w połączeniach zabezpieczonych podkładkami Nord-Lock.

 

Pytania o dobór momentu skręcającego dla Państwa połączeń śrubowych prosimy kierować pod info@nord-lock.pl lub kontaktować się z naszym przedstawicielem na stronie Kontakt.

 

Cu/C paste* = copper/graphite paste (Molykote® 1000)
Oil = WD40 has been used.
GF = Ratio of yield point. When tightening according to guidelines and with no deviation, this is the pre-stress achieved expressed as % of yield point.
μth = współczynnik tarcia gwintu
μh = współczynnik tarcia podkładki
1 N = 0,225 lb
1 Nm = 0,738 ft-lb

Units: Metric UNC
  A B C D E F G H I
1 Washer size Bolt size Pitch
[mm]		 Oil, GF=75%
µth=0,15, µh=0,19		 Cu/C paste*, GF=75%
µth=0,13, µh=0,18		 Dry, GF=62%
µth=0,18, µh=0,2
2       Torque
[Nm]		 Clamp load
[kN]		 Torque
[Nm]		 Clamp load
[kN]		 Torque
[Nm]		 Clamp load
[kN]
3 NL3 M3 0,5 1,7 2,4 1,5 2,4 1,5 2,0
4 NL4 M4 0,7 3,8 4,2 3,6 4,2 3,5 3,5
5 NL5 M5 0,8 7,5 6,8 6,9 6,8 6,8 5,6
6 NL6 M6 1,0 13,1 9,7 12,1 9,7 11,9 8,0
7 NL8 M8 1,25 32 18 29 18 29 15
8 NL10 M10 1,5 62 28 57 28 56 23
9 NL12 M12 1,75 107 40 98 40 97 33
10 NL14 M14 2,0 170 55 157 55 155 46
11 NL16 M16 2,0 260 75 240 75 237 62
12 NL18 M18 2,5 364 92 336 92 331 76
13 NL20 M20 2,5 510 118 470 118 464 97
14 NL22 M22 2,5 696 146 642 146 635 120
15 NL24 M24 3,0 878 169 809 169 800 140
16 NL27 M27 3,0 1284 221 1183 221 1171 182
17 NL30 M30 3,5 1750 269 1613 269 1596 222
18 NL33 M33 3,5 2360 333 2173 333 2155 275
19 NL36 M36 4,0 3043 392 2803 392 2776 324
20 NL39 M39 4,0 3931 468 3619 468 3589 387
21 NL42 M42 4,5 4860 538 4476 538 4436 445
  A B C D E F G H I
1 Washer size Bolt size Pitch
[TPI]		 Oil, GF=75%
µth=0,08, µh=0,18		   Cu/C paste*, GF=75%
µth=0,08, µh=0,19		   Dry, GF=55%
µth=0,19, µh=0,2		  
2       Torque
[ft lb]		 Clamp load
[lb]		 Torque
[ft lb]		 Clamp load
[lb]		 Torque
[ft lb]		 Clamp load
[lb]
3 NL3 #5 40 1.1 558.6 1.1 558.6 1.1 409.6
4 NL3.5 #6 32 1.4 639.9 1.5 639.9 1.4 469.2
5 NL4 #8 32 2.5 982.6 2.6 982.6 2.5 720.6
6 NL5 #10 24 3.7 1233.7 3.9 1233.7 3.7 904.7
7 NL1/4" 1/4 20 8.8 2235 9.1 2235 8.8 1639
8 NL8 5/16 18 17.7 3674 18.3 3674 17.8 2694
9 NL3/8" 3/8 16 31 5424 32.1 5424 31.4 3978
10 NL11 7/16 14 48.8 7439 50.5 7439 49.6 5455
11 NL1/2" 1/2 13 74.5 9920 77.1 9920 76 7271
12 NL14 9/16 12 107 12712 110.8 12712 109.3 9322
13 NL16 5/8 11 147.6 15786 152.8 15786 150.9 11576
14 NL3/4" 3/4 10 258.2 23335 267.4 23335 266 17112
15 NL22 7/8 9 414 32195 429 32195 427 23609
16 NL1" 1 8 627 42228 650 42228 645 30967
17 NL30 1 1/8 7 784 46860 811.6 46860 806 34364
18 NL33 1 1/4 7 1091 59427 1130 59427 1127 43580
19 NL36 1 3/8 6 1433 70864 1485 70864 1478 51967
20 NL39 1 1/2 6 1880 86147 1949 86147 1949 63174
  A B C D E F G
1 Washer size Bolt size Pitch
[mm]		 Oil, GF=71%
µth=0,15, µh=0,15		 Cu/C paste*, GF=75%
µth=0,13, µh=0,15
2       Torque
[Nm]		 Clamp load
[kN]		 Torque
[Nm]		 Clamp load
[kN]
3 NL3 M3 0,5 2,0 3,2 2,0 3,4
4 NL4 M4 0,7 4,5 5,6 4,5 5,9
5 NL5 M5 0,8 8,9 9,1 8,9 9,6
6 NL6 M6 1,0 15,5 12,9 15,5 13,6
7 NL8 M8 1,25 37 23 37 25
8 NL10 M10 1,5 73 37 73 39
9 NL12 M12 1,75 126 54 126 57
10 NL14 M14 2,0 201 74 201 78
11 NL16 M16 2,0 307 100 306 106
12 NL18 M18 2,5 430 123 429 130
13 NL20 M20 2,5 602 156 600 165
14 NL22 M22 2,5 821 194 818 205
15 NL24 M24 3,0 1036 225 1034 238
16 NL27 M27 3,0 1514 294 1509 310
17 NL30 M30 3,5 2064 358 2058 378
18 NL33 M33 3,5 2783 443 2772 468
19 NL36 M36 4,0 3589 522 3576 551
20 NL39 M39 4,0 4632 624 4614 659
21 NL42 M42 4,5 5731 716 5709 757
  A B C D E F G
1 Washer size Bolt size Pitch
[TPI]		 Oil, GF=71%
µth=0,08, µh=0,14		   Cu/C paste*, GF=75%
µth=0,07, µb=0,15		  
2       Torque
[ft lb]		 Clamp load
[lb]		 Torque
[ft lb]		 Clamp load
[lb]
3 NL3 #5 40 1.3 748 1,3 790
4 NL3.5 #6 32 1,6 856 1,7 905
5 NL4 #8 32 2.9 1315 3 1389
6 NL5 #10 24 4,3 1651 4.6 1744
7 NL1/4" 1/4 20 10 2990 11 3159
8 NL8 5/16 18 20 4915 22 5192
9 NL3/8" 3/8 16 36 7256 38 7665
10 NL11 7/16 14 56 9951 60 10511
11 NL1/2" 1/2 13 86 13270 91 14017
12 NL14 9/16 12 123 16771 131 17963
13 NL16 5/8 11 170 21117 180 22307
14 NL3/4" 3/4 10 296 31214 315 32973
15 NL22 7/8 9 475 43067 505 45493
16 NL1" 1 8 718 56488 764 59671
17 NL30 1 1/8 7 1020 71192 1085 75203
18 NL33 1 1/4 7 1417 90284 1506 95370
19 NL36 1 3/8 6 1864 107660 1982 113725
20 NL39 1 1/2 6 2445 130878 2598 138251
  A B C D E F G
1 Washer size Bolt size Pitch
[mm]		 Oil, GF=71%
µth=0,15, µh=0,13		 Cu/C paste*, GF=75%
µth=0,13, µh=0,14
2       Torque
[Nm]		 Clamp load
[kN]		 Torque
[Nm]		 Clamp load
[kN]
3 NL3 M3 0,5 2,2 3,9 2,3 4,1
4 NL4 M4 0,7 5,1 6,7 5,3 7,1
5 NL5 M5 0,8 10,0 10,9 10,3 11,5
6 NL6 M6 1,0 17,4 15,4 18 16,3
7 NL8 M8 1,25 42 28 43 30
8 NL10 M10 1,5 82 44 85 47
9 NL12 M12 1,75 142 65 146 68
10 NL14 M14 2,0 226 89 233 94
11 NL16 M16 2,0 345 120 355 127
12 NL18 M18 2,5 483 148 498 156
13 NL20 M20 2,5 676 188 696 198
14 NL22 M22 2,5 921 233 948 246
15 NL24 M24 3,0 1165 270 1199 286
16 NL27 M27 3,0 1700 352 1749 372
17 NL30 M30 3,5 2318 430 2385 454
18 NL33 M33 3,5 3124 532 3213 562
19 NL36 M36 4,0 4029 626 4145 662
20 NL39 M39 4,0 5199 748 5346 790
21 NL42 M42 4,5 6434 860 6617 908
  A B C D E F G
1 Washer size Bolt size Pitch
[TPI]		 Oil, GF=65%
µth=0,06, µh=0,1		   Cu/C paste*, GF=70%
µth=0,07, µb=0,09		  
2       Torque
[ft lb]		 Clamp load
[lb]		 Torque
[ft lb]		 Clamp load
[lb]
3 NL3 #5 40 1.2 840 1,2 905
4 NL3.5 #6 32 1.4 962 1.5 1036
5 NL4 #8 32 2.5 1478 2.7 1591
6 NL5 #10 24 3.8 1855 4.1 1998
7 NL1/4" 1/4 20 8.9 3360 9.5 3618
8 NL8 5/16 18 18 5522 19 5947
9 NL3/8" 3/8 16 31 8152 33 8779
10 NL11 7/16 14 49 11180 52 12040
11 NL1/2" 1/2 13 74 14909 79 16056
12 NL14 9/16 12 106 19106 113 20575
13 NL16 5/8 11 146 23726 156 25551
14 NL3/4" 3/4 10 254 35071 272 37769
15 NL22 7/8 9 407 48388 435 52110
16 NL1" 1 8 614 63468 656 68350
17 NL30 1 1/8 7 873 79988 932 86141
18 NL33 1 1/4 7 1208 101439 1290 109242
19 NL36 1 3/8 6 1594 120691 1702 130266
20 NL39 1 1/2 6 2083 147048 2225 158360
  A B C D E F G
1 Washer size Bolt size Pitch
[mm]		 A2-70, A4-70, Cu/C paste*
GF=65% µth=0,13, µh=0,13		 A2-80, A4-80, Cu/C paste*
GF=65% µth=0,13, µh=0,13
2       Torque
[Nm]		 Clamp load
[kN]		 Torque
[Nm]		 Clamp load
[kN]
3 NL3ss M3 0,5 0,8 1,5 1,1 2,0
4 NL4ss M4 0,7 1,8 2,6 2,4 3,4
5 NL5ss M5 0,8 3,6 4,1 4,8 5,5
6 NL6ss M6 1,0 6,3 5,9 8,4 7,8
7 NL8ss M8 1,25 15 11 20 14
8 NL10ss M10 1,5 30 17 39 23
9 NL12ss M12 1,75 51 25 68 33
10 NL14ss M14 2,0 81 34 108 45
11 NL16ss M16 2,0 124 46 165 61
12 NL18ss M18 2,5 173 56 231 75
13 NL20ss M20 2,5 242 72 323 95
14 NL22ss M22 2,5 330 89 440 118
15 NL24ss M24 3,0 418 103 557 137
16 NL27ss M27 3,0 609 134 812 179
17 NL30ss M30 3,5 831 164 1108 219
18 NL36ss M36 4,0 1444 239 1925 319
  A B C D E F G
1 Washer size Bolt size Pitch
[TPI]		 316ss, GF=65%, Cu/C paste*
µth=0,12, µh=0,13		   304ss, GF=65%, Cu/C paste*
µth=0,14, µb=0,13		  
2       Torque
[ft lb]		 Clamp load
[lb]		 Torque
[ft lb]		 Clamp load
[lb]
3 NL3ss #5 40 0.6 342 0.7 342
4 NL3.5ss #6 32 0.8 392 0.9 392
5 NL4ss #8 32 1.4 602 1.5 602
6 NL5ss #10 24 2.1 756 2.3 756
7 NL1/4”ss 1/4 20 5.1 1368 5.3 1368
8 NL8ss 5/16 18 10 2249 11 2249
9 NL3/8”ss 3/8 16 18 3320 19 3320
10 NL11ss 7/16 14 28 4553 30 4553
11 NL1/2”ss 1/2 13 43 6072 46 6072
12 NL14ss 9/16 12 62 7781 66 7781
13 NL16ss 5/8 11 85 9663 90 9663
14 NL3/4”ss 3/4 10 103 9884 110 9884
15 NL22ss 7/8 9 165 13637 176 13637
16 NL1”ss 1 8 250 17886 266 17886
17 NL30ss 1 1/8 7 355 22542 377 22542
18 NL33ss 1 1/4 7 494 28587 526 28587
19 NL36ss 1 3/8 6 649 34089 691 34089
20 NL39ss 1 1/2 6 853 41441 909 41441
  A B C D E F G
1 Washer size Bolt size Pitch
[mm]		 A2-70, A4-70, Cu/C paste*
GF=65% µth=0,13, µh=0,13		 A2-80, A4-80, Cu/C paste*
GF=65% µth=0,13, µh=0,13
2       Torque
[Nm]		 Clamp load
[kN]		 Torque
[Nm]		 Clamp load
[kN]
3 NL3ss-254 M3 0,5 0,8 1,5 1,1 2,0
4 NL4ss-254 M4 0,7 1,8 2,6 2,4 3,4
5 NL5ss-254 M5 0,8 3,6 4,1 4,8 5,5
6 NL6ss-254 M6 1,0 6,3 5,9 8,4 7,8
7 NL8ss-254 M8 1,25 15 11 20 14
8 NL10ss-254 M10 1,5 30 17 39 23
9 NL12ss-254 M12 1,75 51 25 68 33
10 NL14ss-254 M14 2,0 81 34 108 45
11 NL16ss-254 M16 2,0 124 46 165 61
12 NL18ss-254 M18 2,5 173 56 231 75
13 NL20ss-254 M20 2,5 242 72 323 95
14 NL22ss-254 M22 2,5 330 89 440 118
15 NL24ss-254 M24 3,0 418 103 557 137
16 NL27ss-254 M27 3,0 609 134 812 179
17 NL30ss-254 M30 3,5 831 164 1108 219
18 NL36ss-254 M36 4,0 1444 239 1925 319
  A B C D E F G
1 Washer size Bolt size Pitch
[TPI]		 316ss, GF=65%, Cu/C paste*
µth=0,12, µh=0,13		   304ss, GF=65%, Cu/C paste*
µth=0,14, µb=0,13		  
2       Torque
[ft lb]		 Clamp load
[lb]		 Torque
[ft lb]		 Clamp load
[lb]
3 NL3ss #5 40 0.6 342 0.7 342
4 NL3.5ss #6 32 0.8 392 0.9 392
5 NL4ss #8 32 1.4 602 1.5 602
6 NL5ss #10 24 2.1 756 2.3 756
7 NL1/4”ss 1/4 20 5.1 1368 5.3 1368
8 NL8ss 5/16 18 10 2249 11 2249
9 NL3/8”ss 3/8 16 18 3320 19 3320
10 NL11ss 7/16 14 28 4553 30 4553
11 NL1/2”ss 1/2 13 43 6072 46 6072
12 NL14ss 9/16 12 62 7781 66 7781
13 NL16ss 5/8 11 85 9663 90 9663
14 NL3/4”ss 3/4 10 103 9884 110 9884
15 NL22ss 7/8 9 165 13637 176 13637
16 NL1”ss 1 8 250 17886 266 17886
17 NL30ss 1 1/8 7 355 22542 377 22542
18 NL33ss 1 1/4 7 494 28587 526 28587
19 NL36ss 1 3/8 6 649 34089 691 34089
20 NL39ss 1 1/2 6 853 41441 909 41441