Model weight Basic size rated load limit speed
dynamic load static load
　 [g] d [mm] F [mm] D [mm] B [mm] Cr[N] C0r[N] [r/min]
NKI5/12 TN 11.5 5 8 15 12 4 450 4 100 32,000
NKI5/16 TN 15.3 5 8 15 16 5 800 5 800 32,000
NKI6/12 TN 13.5 6 9 16 12 5 100 5,000 30,000
NKI6/16 TN 17.4 6 9 16 16 6 600 7 100 30,000
NAO6X17X10 TN 14 6 10 17 10 5 300 5 500 29,000
NKI7/12 TN 13.7 7 10 17 12 5 300 5 500 29,000
NKI7/16 TN 18.2 7 10 17 16 7,000 7 800 29,000
NKI9/12 16.6 9 12 19 12 7 200 7 100 27,000
NKI9/16 21.9 9 12 19 16 10 100 11,000 27,000
NAO9X22X12 TN 23.5 9 12 22 12 11 300 9 900 25,000
NKI10/16 29.4 10 14 22 16 11 400 11 500 25,000
NKI10/20 37.1 10 14 22 20 14 500 15 600 25,000
NA4900 23 10 14 22 13 9 600 9 200 25,000
NKI12/16 33.3 12 16 24 16 12 800 13 900 24,000
NKI12/20 41.9 12 16 24 20 16 300 18 800 24,000
NA4901 26 12 16 24 13 10 600 10 900 24,000
NA6901 46 12 16 24 22 18 100 21 600 24,000
NAO12X24X13 30 12 16 24 13 10 100 11 800 24,000
NAO12X28X12 40 12 16 28 12 13 000 12 500 22,000
NKI15/16 38.8 15 19 27 16 14 700 17 400 22,000
NKI15/20 48.7 15 19 27 20 18 700 23 600 22,000
NA4902 34 15 20 28 13 12,000 13 600 22,000
NA6902 63.6 15 20 28 23 19 500 25 500 22,000
NKIS15 92 15 22 35 20 27 500 28,000 20,000
NAO15X28X13 29 15 20 28 13 11 100 14 300 22,000
NAO15X32X12 50 15 20 32 12 15 100 16 200 21,000
NKI17/16 42.4 17 21 29 16 15 200 18 700 21,000
NKI17/20 53.4 17 21 29 20 19 300 25 500 21,000
NA4903 37 17 22 30 13 12 400 14 600 21,000
NA6903 72 17 22 30 23 21 100 29,000 21,000
NKIS17 98 17 24 37 20 29 500 31,000 18,000
NAO17X30X13 42 17 22 30 13 11 800 15 900 21,000
NAO17X35X16 78 17 22 35 16 22 600 25 500 19,000
NKI20/16 49 20 24 32 16 16 900 22 300 19,000
NKI20/20 61 20 24 32 20 21 400 30 500 19,000
NA4904 75.2 20 25 37 17 23 700 25 500 17,000
NA6904 141 20 25 37 30 40 500 51,000 17,000
NKIS20 129 20 28 42 20 32 500 36 500 16 000
NAO20X35X17 76 20 25 35 17 16 800 26,000 18,000
NAO20X37X16 82 20 25 37 16 23 800 28,000 17,000
NKI22/16 52 22 26 34 16 17 300 23 600 18,000
NKI22/20 65.4 22 26 34 20 22,000 32,000 18,000
NA49/22 80 22 28 39 17 26,000 29 500 16 000
NA69/22 150 22 28 39 30 42,000 55,000 16 000
NKI25/20 TN 75.8 25 29 38 20 27 500 39,000 16 000
NKI25/30 124 25 29 38 30 37,000 57,000 16 000
NA4905 88 25 30 42 17 26 500 31 500 15,000
NA6905 161 25 30 42 30 44 000 59,000 15,000
NKIS25 162 25 32 47 22 38,000 43 500 14,000
NAO25X40X17 88 25 30 40 17 22 100 34,000 15,000
NAO25X42X16 86 25 30 42 16 26,000 33 500 15,000
NAO25X42X32 190 25 30 43 32 45,000 67,000 15,000
NKI28/20 TN 92.4 28 32 42 20 29 500 44 500 14,000
NKI28/30 146 28 32 42 30 39,000 63 000 14,000
NA49/28 97.7 28 32 45 17 27 500 33 500 13 000
NA69/28 182 28 32 45 30 45 500 63 000 13 000
NKI30/20 TN 108 30 35 45 20 31,000 48 500 13 000
NKI30/30 TN 165 30 35 45 30 46,000 81 000 13 000
NA4906 101 30 35 47 17 28 500 35 500 13 000
NA6906 192 30 35 47 30 49,000 71,000 13 000
NKIS30 184 30 37 52 22 41 500 50,000 12,000
NAO30X45X17 102 30 35 45 17 23 500 38 500 13 000
NAO30X45X26 157 30 35 45 26 31 500 56,000 13 000
NAO30X47X16 109 30 35 47 16 27 500 37 500 13 000
NAO30X47X18 119 30 35 47 18 31,000 43 000 13 000
NKI32/20 118 32 37 47 20 28,000 43 500 12,000
NKI32/30 180 32 37 47 30 42,000 73,000 12,000
NA49/32 158 32 40 52 20 34 500 47 500 12,000
NA69/32 288 32 40 52 36 53,000 82,000 12,000
NKI35/20 TN 122 35 40 50 20 33 500 56,000 12,000
NKI35/30 193 35 40 50 30 44 000 79,000 12,000
NA4907 170 35 42 55 20 35 500 50,000 11,000
NA6907 310 35 42 55 36 54,000 86,000 11,000
NKIS35 220 35 43 58 22 44 000 57,000 11,000
NAO35X50X17 113 35 40 50 17 24 200 41 500 12,000
NAO35X55X20 190 35 40 55 20 37,000 57,000 11,000
NKI38/20 136 38 43 53 20 30 500 51,000 11,000
NKI38/30 207 38 43 53 30 45 500 85,000 11,000
NKI40/20 TN 136 40 45 55 20 35,000 62,000 10,000
NKI40/30 TN 216 40 45 55 30 52,000 103 000 10,000
NA4908 230 40 48 62 22 48 500 67,000 9 500
NA6908 430 40 48 62 40 74 000 116,000 9 500
NKIS40 281 40 50 65 22 48,000 67,000 9 500
NAO40X55X17 127 40 45 55 17 25 500 46,000 10,000
NKI42/20 148 42 47 57 20 32 500 56,000 10,000
NKI42/30 222 42 47 57 30 48 500 94 000 10,000
NKI45/25 TN 217 45 50 62 25 48 500 87 000 9,000
NKI45/35 TN 308 45 50 62 35 67,000 132,000 9,000
NA4909 271 45 52 68 22 51,000 73,000 8 500
NA6909 495 45 52 68 40 79,000 127 000 8 500
NKIS45 336 45 55 72 22 51,000 74 000 8 500
NKI50/25 270 50 55 68 25 45 500 82,000 8 500
NKI50/35 379 50 55 68 35 60,000 118 000 8 500
NA4910 274 50 58 72 22 53,000 80,000 8,000
NA6910 515 50 58 72 40 82,000 139 000 8,000
NKIS50 518 50 60 80 28 71,000 98,000 7 500
NAO50X68X20 230 50 55 68 20 32,000 66,000 8 500
NKI55/25 TN 255 55 60 72 25 47 500 90,000 7 500
NKI55/35 379 55 60 72 35 63 000 130,000 7 500
NA4911 393 55 63 80 25 65,000 100000 7 500
NA6911 780 55 63 80 45 102 000 176,000 7 500
NKIS55 558 55 65 85 28 75,000 108 000 7,000
NKI60/25 394 60 68 82 25 49 500 89 000 7,000
NKI60/35 553 60 68 82 35 70,000 139 000 7,000
NA4912 426 60 68 85 25 68,000 108 000 7,000
NA6912 808 60 68 85 45 106 000 191 000 7,000
NKIS60 560 60 70 90 28 77,000 113 000 6 500
NKI65/25 467 65 73 90 25 60,000 100000 6 500
NKI65/35 659 65 73 90 35 85,000 156 000 6 500
NA4913 456 65 72 90 25 69 000 112 000 6 500
NA6913 833 65 72 90 45 108 000 198 000 6 500
NKIS65 641 65 75 95 28 81 000 123 000 6,000
NKI70/25 521 70 80 95 25 63 000 119 000 6,000
NKI70/35 737 70 80 95 35 89 000 184 000 6,000
NA4914 728 70 80 100 30 95 000 156 000 6,000
NA6914 1 340 70 80 100 54 145,000 265,000 6,000
NAO70X100X30 850 70 80 100 30 80,000 176,000 6,000
NKI75/25 641 75 85 105 25 78,000 123 000 5 500
NKI75/35 908 75 85 105 35 111 000 193 000 5 500
NA4915 775 75 85 105 30 97 000 162 000 5 500
NA6915 1 450 75 85 105 54 147 000 275 000 5 500
NKI80/25 677 80 90 110 25 81 000 132,000 5,000
NKI80/35 959 80 90 110 35 116,000 208 000 5,000
NA4916 878 80 90 110 30 101 000 174 000 5,000
NA6916 1 522 80 90 110 54 153,000 300000 5,000
NAO80X110X30 920 80 90 110 30 76 000 172,000 5,000
NKI85/26 743 85 95 115 26 83 000 137 000 4 900
NKI85/36 1 040 85 95 115 36 121,000 223,000 4 900
NA4917 1 250 85 100 120 35 125,000 237 000 4 800
NA6917 2 200 85 100 120 63 188 000 400,000 4 800
NKI90/26 778 90 100 120 26 86,000 146 000 4 700
NKI90/36 1 090 90 100 120 36 125,000 237 000 4 700
NA4918 1 312 90 105 125 35 129 000 250,000 4 600
NA6918 2 310 90 105 125 63 195 000 425 000 4 600
NAO90X120X30 1044 90 100 120 30 80,000 188 000 4 700
NKI95/26 816 95 105 125 26 89 000 155 000 4 500
NKI95/36 1145 95 105 125 36 129 000 250,000 4 500
NA4919 1371 95 110 130 35 131,000 260,000 4 400
NA6919 2500 95 110 130 63 197 000 440 000 4 400
NKI100/30 990 100 110 130 30 111 000 210 000 4 300
NKI100/40 1 330 100 110 130 40 143 000 290,000 4 300
NA4920 1 900 100 115 140 40 144 000 270,000 4 100
NA4922 2 070 110 125 150 40 149 000 290,000 3 800
NA4822 1 080 110 120 140 30 106 000 216 000 3 900
NA4924 2 860 120 135 165 45 205 000 390,000 3 400
NA4824 1 170 120 130 150 30 112 000 239 000 3 600
NA4926 3 900 130 150 180 50 229 000 470,000 3 200
NA4826 1 810 130 145 165 35 134 000 310 000 3 300
NA4928 4 150 140 160 190 50 237 000 500,000 3,000
NA4828 1 920 140 155 175 35 136 000 325,000 3 100
NA4830 2 720 150 165 190 40 172,000 400,000 2 900
NA4832 2 890 160 175 200 40 181 000 435,000 2 700
NA4834 3 960 170 185 215 45 209 000 510 000 2 500
NA4836 4 200 180 195 225 45 219 000 550 000 2 400
NA4838 5 610 190 210 240 50 255 000 690,000 2 300
NA4840 5 840 200 220 250 50 260,000 720,000 2 200
NA4844 6 380 220 240 270 50 275 000 790,000 2,000
NA4848 10,000 240 265 300 60 400,000 1 080 000 1 800
NA4852 10 600 260 285 320 60 415,000 1 160 000 1 700
NA4856 15 300 280 305 350 69 510 000 1 300,000 1 600
NA4860 21 800 300 330 380 80 700,000 1 770,000 1 400
NA4864 23,000 320 350 400 80 710,000 1 850 000 1 400
NA4868 24 200 340 370 420 80 730 000 1 940 000 1 300
NA4872 25 600 360 390 440 80 740 000 2 020 000 1 200
NA4876 42 600 380 415 480 100 1 130,000 2,900 000 1 100
Designation Mass Main dimensions Basic load ratings Limit speed
Dynamic load Static load
　 [g] d [mm] F [mm] D [mm] B [mm] Cr [N] Cor [N] [r/min]

NKI(d≤7mm)

NKI(d≥9mm)

NKIS, NA49, and NA69

NA69

NAO

NAO...ZW

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