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Double Row Cylindrical Roller Bearings

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Double Row Cylindrical Roller Bearings
  • Double Row Cylindrical Roller Bearings

Cylindrical roller bearings are precision-engineered components designed to handle high radial loads in industrial applications. They feature cylindrical rollers guided by inner and outer rings, optimizing load distribution and efficiency. Their robust design ensures reliable operation under diverse conditions. Widely used in machinery like pumps, compressors, and gearboxes.

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selectInquiryBearing NO. Boundary dimensions(mm) Basic load ratings(kN) Limiting speed(rpm) Abutment and fillet dimensions(mm) Weight (kg)
Cylindrical boreTapered boredDB/Cr 1.2minr3.4minCrCorSpeed Ratingsda maxDa maxra maxrb maxRefer
NN3040 NN3040K 200 310 82 2.1 2.1 644 1140 2000 - 299 2 2 22
NNU3040 NNU3040K 200 310 82 2.1 2.1 644 1140 2000 216 293 2 2 22.9
NN4040 NN4040K 200 310 109 2.1 2.1 890 1730 2000 216 293 2 2 30.4
NNU4040X2 - 200 310 115 2.1 2.1 1010 1860 2000 225 299 2 2 31.5
NNU4140 NNU4140K30 200 340 140 3 3 1470 2550 1700 231 327 2.5 2.5 51
NN3944 NN3944K 220 300 60 2.1 2.1 440 895 2800 236 283 2 2 11.4
NNU4944 NNU4944K 220 300 80 2.1 2.1 512 1140 2800 242 289 2 2 16.5
NN4944 NN4944K 220 300 80 2.1 2.1 512 1140 2800 236 283 2 2 16.6
NNU5944X2 - 220 300 100 2.1 2.1 897 1930 2200 236.5 289 2 2 20.5
NN3044 NN3044K 220 340 90 3 3 809 1460 2600 - 327 2.5 2.5 28.5
NNU3044 - 220 340 90 3 3 809 1460 2600 238 320 2.5 2.5 30
NN4044 NN4044K 220 340 118 3 3 1190 2400 2600 238 320 2.5 2.5 39.8
NN3144 - 220 370 120 4 4 1050 1810 1500 241 346 3 3 51.9
NNU3144 - 220 370 120 4 4 1050 1810 1500 241 346 3 3 52.3
NNU4144 NNU4144K30 220 370 150 4 4 1650 2900 1500 254 354 3 3 65
NNU4848 NNU4848K 240 300 60 2 2 358 930 2200 255 290 2 2 9.9
NN4848 - 240 300 60 1.1 1.1 358 930 2200 252 287 1 1 9.77
NN3948 NN3948K 240 320 60 2.1 2.1 460 975 2600 257 302 2 2 12.2
NNU4948 NNU4948K 240 320 80 2.1 2.1 528 1220 2600 262 309 2 2 17.5
NN4948 NN4948K 240 320 80 2.1 2.1 528 1220 2600 257 302 2 2 17.9
NNU5948X2 - 240 320 100 2.1 2.1 880 1960 1400 255 293 2 2 22.5
NN3048 NN3048K 240 360 92 3 3 842 1560 2400 - 347 2.5 2.5 32
NNU3048 NNU3048K 240 360 92 3 3 842 1560 2400 259 340 2.5 2.5 30.8
NN4048 NN4048K 240 360 118 3 3 1240 2600 2400 259 340 2.5 2.5 39.3
NNU4048 - 240 360 118 3 3 1240 2600 2400 259 340 2.5 2.5 42.7
NN3148 NN3148K 240 400 128 4 4 1170 2040 1400 262 376 3 3 64.2
NNU4148 NNU4148K30 240 400 160 4 4 1980 3650 1400 278 384 3 3 85
NN3952 NN3952K 260 360 75 2.1 2.1 670 1380 2400 277 342 2 2 21.4
NNU4952 NNU4952K 260 360 100 2.1 2.1 748 1700 2400 288 349 2 2 30.5
NN4952 NN4952K 260 360 100 2.1 2.1 748 1700 2400 277 342 2 2 28.3
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