冷热轧机圆柱滚子轴承NNU49/560 高性能

 

LYDZ双列圆柱滚子轴承，有圆柱形内孔和圆锥形内孔两种结构。该类轴承具有结构紧凑、刚性大、承载能力大、受力后变形小等优点，特别适用于机床主轴支承。它分为NN型和NNU型两种结构形式。NN型轴承为内圈双挡边而外圈无挡边，NNU型轴承则为外圈双挡边而内圈无挡边，这两种轴承均不限制轴与外壳间的相对轴向位移用作非定位轴承

 

基本尺寸 基本额定负荷 极限转速 重量 轴 承 型 号

Principal Dimensions Basic Load Ratings Limiting Speeds Wt Bearing Number

d D B Cr Cor Greast Oil  新型号 老型号

mm KN r/min kg New Old

290 75 560 1000 1600 2000 18 NN3038 3282138

290 75 560 1000 1600 2000 17.5 NN3038K 3182138

320 128 1200 2000 1400 1800 41.5 NNU4138 -

320 128 1200 2000 1400 1800 41 NNU4138K -

200 250 50 240 540 1900 2400 5.8 NNU4840 -

250 50 240 540 1900 2400 5.75 NNU4840K -

280 80 480 950 1800 2300 15 NNU4940 4482940

280 80 480 950 1800 2300 14.5 NNU4940K 4382940

310 82 640 1100 1600 2000 22.5 NN3040 3282140

310 82 640 1100 1600 2000 22 NN3040K 3182140

340 140 1350 2300 1400 1700 52 NNU4140 -

340 140 1350 2300 1400 1700 51 NNU4140K -

220 300 80 480 1050 1600 2000 17 NNU4944 4482944

300 80 480 1050 1600 2000 16.5 NNU4944K 4382944

340 90 790 1400 1400 1800 31 NN3044 3282144

340 90 790 1400 1400 1800 30.5 NN3044K 3182144

370 150 1500 2650 1200 1500 66 NNU4144 -

370 150 1500 2650 1200 1500 65 NNU4144K -

240 300 60 350 850 1800 2200 10 NNU4848 -

300 60 350 850 1800 2200 9.8 NNU4848K -

320 80 500 1100 1600 2000 18 NNU4948 4482948

320 80 500 1100 1600 2000 17.5 NNU4948K 4382948

360 92 810 1550 1400 1800 32 NN3048 3282148

360 92 810 1550 1400 1800 31.5 NN3048K 3182148

400 160 1800 3300 1100 1400 86 NNU4148 -

400 160 1800 3300 1100 1400 85 NNU4148K -

260 360 100 710 1500 1400 1800 30 NNU4952 4482952

360 100 710 1500 1400 1800 29 NNU4952K 4382952

400 104 960 1800 1300 1600 48 NN3052 3282152

400 104 960 1800 1300 1600 47 NN3052K 3182152

400 140 1500 2850 1200 1500 64 NNU4052 -

400 140 1500 2850 1200 1500 63.5 NNU4052K -

440 180 2000 3550 1000 1300 112 NNU4152 -

440 180 2000 3550 1000 1300 110 NNU4152K -

280 350 69 450 1150 1400 1700 16 NNU4856 -

350 69 450 1150 1400 1700 15.5 NNU4856K -

380 100 700 1650 1300 1600 33 NNU4956 4482956

380 100 700 1650 1300 1600 32.5 NNU4956K 4382956

420 106 1000 1900 1600 2000 50 NN3056 3282156

420 106 1000 1900 1600 2000 49.5 NN3056K 3182156

420 140 1500 2850 1100 1400 67 NNU4056 -

420 140 1500 2850 1100 1400 66.5 NNU4056K -

460 180 2300 4300 950 1200 122 NNU4156 -

460 180 2300 4300 950 1200 120 NNU4156K -

300 380 180 530 1450 1700 2200 22.5 NNU4860 -

380 180 530 1450 1700 2200 22 NNU4860K -

420 118 950 2150 1600 2000 51 NNU4960 4482960

420 118 950 2150 1600 2000 50 NNU4960K 4382960

460 118 1150 2200 1500 1900 70 NN3060 3282160

460 118 1150 2200 1500 1900 68.5 NN3060K 3182160

460 160 1850 3600 1000 1300 97 NNU4060 -

460 160 1850 3600 1000 1300 96 NNU4060K -

500 200 2600 4800 900 1100 157 NNU4160 -

500 200 2600 4800 900 1100 155 NNU4160K -

320 400 80 700 1850 1200 1500 24 NNU4864 -

400 80 700 1850 1200 1500 23.5 NNU4864K -

440 118 1000 2250 1100 1400 54 NNU4964 4482964

440 118 1020 2250 1100 1400 53 NNU4964K 4382964

480 121 1200 2350 1000 1300 76.5 NN3064 3282164

480 121 1200 2350 1000 1300 75 NN3064K 3182164

480 160 1950 3900 950 1200 102 NNU4064 -

480 160 1950 3900 950 1200 100 NNU4064K -

540 218 3100 5600 800 1000 202 NNU4164 -

540 218 3100 5600 800 1000 200 NNU4164K -

340 420 80 600 1650 1100 1400 25.5 NNU4868 -

420 80 600 1650 1100 1400 25 NNU4868K -

460 118 1000 2400 1000 1300 57 NNU4968 4482968

460 118 1000 2400 1000 1300 56 NNU4968K 4382968

520 133 1550 3000 950 1200 100 NN3068 3282168

520 133 1550 3000 950 1200 99 NN3068K 3182168

520 180 2300 4600 900 1100 142 NNU4068 -

520 180 2300 4600 900 1100 140 NNU4068K -

580 243 3650 7000 750 950 262 NNU4168 -

580 243 3650 7000 750 950 260 NNU4168K -

360 480 118 1050 2550 1400 1700 59 NNU4972 4482960

480 118 1050 2550 1400 1700 58.5 NNU4972K 4382960

540 134 1600 3200 1200 1500 106 NN3072 3282160

540 134 1600 3200 1200 1500 105 NN3072K  3182160

540 180 2550 5150 900 1100 141 NNU4072  -

540 180 2550 5150 900 1100 140 NNU4072K -

600 243 3900 7650 700 900 277 NNU4172  -

600 243 3900 7650 700 900 275 NNU4172K -

380 480 100 900 2300 950 1200 45 NNU4876  -

480 100 900 2300 950 1200 44 NNU4876K -

520 140 1350 3250 900 1100 89 NNU4976  4482976

520 140 1350 3250 900 1100 87.5 NNU4976K  4382976

560 135 1550 3150 900 1100 112 NN3076 3282176

560 135 1550 3150 900 1100 110 NN3076K  3182176

560 180 2660 5400 800 1000 153 NNU4076  -

560 180 2660 5400 800 1000 150 NNU4076K -

620 243 3900 7650 670 850 288 NNU4176 -

620 243 3900 7650 670 850 285 NNU4176K -

400 500 100 900 2450 950 1200 46.5 NNU4880 -

500 100 900 2450 950 1200 46 NNU4880K -

540 108 1240 2400 900 1100 71.5 NN3980K -

540 140 1350 3450 900 1100 93 NNU4980 4482980

540 140 1350 3450 900 1100 91.5 NNU4980K 4382980

600 148 1980 3660 800 1000 145 NN3080 3282180

600 148 1980 3660 800 1000 143 NN3080K 3182180

600 200 3150 6500 750 950 208 NNU4080 -

600 200 3150 6500 750 950 200 NNU4080K -

650 250 4300 8550 630 800 328 NNU4180 -

650 250 4300 8550 630 800 325 NNU4180K -

420 520 100 900 2560 800 1000 48.5 NNU4884 -

520 100 900 2560 800 1000 48 NNU4884K -

560 140 1400 3600 800 1000 97 NNU4984 4482984

560 140 1400 3600 800 1000 95.5 NNU4984K 4382984

620 150 1950 4100 800 1000 147 NN3084 3282184

620 150 1950 4100 800 1000 145 NN3084K 3182184

620 200 3200 6800 700 900 186 NNU4084 -

620 200 3200 6800 700 900 183 NNU4084K -

700 280 5000 10300 600 750 445 NNU4184 -

700 280 5000 10300 600 750 440 NNU4184K -

440 540 100 910 2450 1000 1300 51 NNU4888 -

540 100 910 2450 1000 1300 50 NNU4888K -

600 160 1850 4700 1000 1300 132 NNU4988 4482988

600 160 1850 4700 1000 1300 130 NNU4988K 4382988

650 157 2200 4600 950 1200 173 NN3088 3282188

650 157 2200 4600 950 1200 170 NN3088K 3182188

650 212 3600 7500 670 850 218 NNU4088 -

650 212 3600 7500 670 850 215 NNU4088K -

720 280 5150 11000 560 700 455 NNU4188 -

720 280 5150 11000 560 700 450 NNU4188K -

460 580 118 1100 2950 950 1200 75.5 NNU4892 -

580 118 1100 2950 950 1200 75 NNU4892K -

620 160 2050 5000 800 1000 136 NNU4992 4482992

620 160 2050 5000 800 1000 135 NNU4992K 4382992

680 163 2470 5070 800 1000 197 NN3092 3282192

680 163 2470 5070 800 1000195 ,  NN3092K 3182192

680 218 3900 8100 630 800 242 NNU4092 -

680 218 3900 8100 630 800 240 NNU4092K -

760 300 5800 12000 530 670 538 NNU4192 -

760 300 5800 12000 530 670 535 NNU4192K -

480 650 170 2100 5500 800 1000 162 NNU4996 4482996

650 170 2100 5500 800 1000 160 NNU4996K 4382996

700 165 2450 5300 700 900 203 NN3096 3282196

700 165 2450 5300 700 900 200 NN3096K 3182196

700 218 4000 8700 600 750 277 NNU4096 -

700 218 4000 8700 600 750 275 NNU4096K -

790 308 6350 13000 500 630 594 NNU4196 -

790 308 6350 13000 500 630 590 NNU4196K -

500 670 170 2200 5500 750 950 166 NNU49/500 44829/500

670 170 2200 5500 750 950 165 NNU49/500K 43829/500

720 167 2500 5300 700 900 212 NN30/500 32821/500

720 167 2500 5300 700 900 210 NN30/500K 31821/500

720 218 4050 9000 600 750 288 NNU40/500 -

720 218 4050 9000 600 750 285 NNU40/500K -

830 325 6750 13500 480 600 715 NNU41/500 -

830 325 6750 13500 480 600 710 NNU41/500K -

530 710 180 2600 7050 800 1000 202 NNU49/530 44829/530

710 180 2600 7050 800 1000 200 NNU49/530K 43829/530

780 185 3000 6500 800 1000 272 NN30/530 32821/530

780 185 3000 6500 800 1000 270 NN30/530K 31821/530

780 250 5000 11000 530 670 423 NNU40/530 -

780 250 5000 11000 530 670 420 NNU40/530K -

870 335 7050 14500 450 560 795 NNU41/530 -

870 335 7050 14500 450 560 790 NNU41/530K -

560 750 140 2350 4850 800 1000 188 NN39/560 -

750 190 2900 7800 750 950 237 NNU49/560 44829/560

750 190 2900 7800 750 950 235 NNU49/560K 43829/560

780 180 2400 6400 750 950 266 NN6/560  -

820 195 3350 8150 700 900 318 NN30/560 32821/560

820 195 3350 8150 700 900 315 NN30/560K 31821/560

820 258 5150 12000 500 630 478 NNU40/560 -

820 258 5150 12000 500 630 475 NNU40/560K -

920 355 8000 16500 430 530 935 NNU41/560 -

920 355 8000 16500 430 530 930 NNU41/560K -

600 800 200 3450 7150 700 900 278 NN49/600 42829/600

800 200 3450 7150 700 900 283 NNU49/600 44829/600

800 200 3450 7150 700 900 280 NNU49/600K 43829/600

870 200 3600 7800 670 850 358 NN30/600 32821/600

870 200 3600 7800 670 850 355 NN30/600K 31821/600

870 272 6150 14100 480 600 535 NNU40/600 -

870 272 6150 14100 480 600 530 NNU40/600K -

980 375 9000 19000 380 480 1110 NNU41/600 -

980 375 9000 19000 380 480 1100 NNU41/600K -

630 850 218 3650 8300 670 850 358 NNU49/630 44829/630

850 218 3650 8300 670 850 355 NNU49/630K 43829/630

920 212 3900 8900 630 800 434 NN30/630 32821/630

920 212 3900 8900 630 800 430 NN30/630K 31821/630

920 290 6900 15800 450 560 640 NNU40/630 -

920 290 6900 15800 450 560 635 NNU40/630K -

1030 400 9900 21600 360 450 1340 NNU41/630 -

1030 400 9900 21600 360 450 1330 NUU41/630K -

670 900 230 4500 9000 630 800 413 NNU49/670 44829/670

900 230 4500 9000 630 800 410 NNU49/670K 43829/670

980 280 4600 9350 600 750 535 NN30/670 32821/670

980 280 4600 9350 600 750 530 NN30/670K 31821/670

980 308 7600 17700 400 500 770 NNU40/670 -

980 308 7600 17700 400 500 765 NNU40/670K -

1090 412 10900 23000 340 430 1510 NNU41/670 -

1090 412 10900 23000 340 430 1500 NNU41/670K -

710 950 243 4900 11500 560 700 485 NNU49/710  44829/710

950 243 4900 11500 560 700 480 NNU49/710K 43829/710

1030 236 5150 12000 530 670 595 NN30/710  32821/710

1030 236 5150 12000 530 670 590 NN30/710K 31821/710

1030 315 8450 19500 380 480 858 NNU40/710 -

1030 315 8450 19500 380 480 850 NNU40/710K -

1150 438 12100 26000 300 380 1800 NNU41/710 -

1150 438 12100 26000 300 380 1790 NNU41/710K -

750 920 170 3100 9200 450 550 243 NN48/750 -

920 170 3100 9200 450 550 240 NN48/750K -

1000 250 5000 14400 400 500 545 NNU49/750 44829/750

1000 250 5000 14400 400 500 540 NNU49/750K 43829/750

1090 250 6500 14500 500 630 712 NN30/750 32821/750

1090 250 6500 14500 500 630 705 NN30/750K 31821/750

1090 335 9200 21600 340 430 933 NNU40/750 -

1090 335 9200 21600 340 430 925 NNU40/750K -

750 1220 475 14500 32000 280 360 2245 NNU41/750 -

1220 475 14500 32000 280 360 2230 NNU41/750K -

800 1060 258 5250 15300 - - 620 NNU49/800 44829/800

1060 258 5250 15300 - - 615 NNU49/800K 43829/800

1150 258 7100 16200 - - 798 NN30/800 32821/800

1150 258 7100 16200 - - 790 NN30/800K 31821/800

1150 345 9750 23400 - - 1150 NNU40/800 -

1150 345 9750 23400 - - 1140 NNU40/800K -

1280 475 14900 32900 - - 2410 NNU41/800 -

1280 475 14900 32900 - - 2390 NNU41/800K -

850 1120 272 5350 16200 - - 365 NNU49/850 44829/850

1120 272 5350 16200 - - 360 NNU49/850K 43829/850

1220 272 7150 17000 - - 985 NN30/850 32821/850

1220 272 7150 17000 - - 980 NN30/850K 31821/850

1220 365 10600 26000 - - 1310 NNU40/850 -

1220 365 10600 26000 - - 1300 NNU40/850K -

900 1180 280 6000 18000 - - 815 NNU49/900 44829/900

1180 280 6000 18000 - - 805 NNU49/900K 43829/900

1280 280 7500 18000 - - 1065 NN30/900 32821/900

1280 280 7500 18000 - - 1050 NN30/900K 31821/900

1280 375 11600 28500 - - 1520 NNU40/900  -

1280 375 11600 28500 - - 1500 NNU40/900K -

950 1250 300 6700 20200 - - 970 NNU49/950  44829/950

1250 300 6700 20200 - - 960 NNU49/950K 43829/950

1360 300 8250 20200 - - 1320 NN30/950 32821/950

1360 300 8250 20200 - - 1300 NN30/950K 31821/950

1360 412 12800 32000 - - 1930 NNU40/950 -

1360 412 12800 32000 - - 1900 NNU40/950K -

1000 1320 315 7750 23400 - - 1260 NNU49/1000 44829/1000

1320 315 750 23400 - - 1250 NNU49/1000K 43829/1000

1320 315 7750 23400 - - 1220 NN49/1000 42829/1000

1320 315 7750 23400 - - 1200 NN49/1000K 41829/1000

1420 308 10000 22100 - - 1430 NN30/1000 32821/1000

1420 308 10000 22100 - - 1400 NN30/1000K 31821/1000

1420 412 13900 34200 - - 2035 NNU40/1000 -

1420 412 13900 34200 - - 2000 NNU40/1000K -

1060 1400 335 9500 27500 - - 1365 NNU49/1060 44829/1060

1400 335 9500 27500 - - 1350 NNU49/1060K 43829/1060

1500 325 9900 24800 - - 1670 NN30/1060 32821/1060

1500 325 9900 24800 - - 1650 NN30/1060K 31821/1060

1120 1460 335 10000 28500 - - 1475 NNU49/1120 44829/1120

1460 335 10000 28500 - - 1450 NNU49/1120K 43829/1120

1180 1540 355 10800 32400 - - 1680 NNU49/1180 44829/1180

1540 355 10800 32400 - - 1650 NNU49/1180K 43829/1180

1320 1720 400 12500 38300 - - 3130 NNU49/1320 44829/1320

1720 400 12500 38300 - - 3100 NNU49/1320K 43829/1320

1720 400 12500 38300 - - 3085 NN49/1320 42829/1320

1720 400 12500 38300 - - 3060 NN49/1320K 41829/1320

 

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