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PRODUCT

Cylindrical Roller Bearings

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Bearing Overview

Cylindrical roller bearings are engineered to carry heavy radial loads while maintaining excellent performance at high speeds. Their rollers are in linear contact with the raceways, which provides a larger load-bearing area compared to ball bearings, resulting in higher rigidity and superior radial load capacity.

Depending on the internal design, cylindrical roller bearings can accommodate axial displacement in one direction or provide limited axial guidance. Common configurations such as NU, NJ, NUP, and N types are designed to meet different requirements for shaft positioning and axial movement. These bearings are widely used in gearboxes, electric motors, machine tools, and heavy industrial machinery where durability and load stability are critical.

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Key Features

  • High radial load carrying capacity
  • Excellent performance under high-speed operation
  • Low friction and reduced heat generation
  • High rigidity due to line contact roller design
  • Available in multiple structural types (NU, NJ, NUP, N, etc.)
  • Suitable for axial displacement or fixed positioning designs
  • Long service life under heavy-duty conditions
  • Widely applicable in industrial and precision equipment

Bearing Types

Single Row Cylindrical Roller Bearings

TypeDescription
NU TypeAllows axial displacement in both directions, suitable for non-locating bearing positions.
NJ TypeLocates shaft axially in one direction while allowing limited axial movement.
NUP TypeProvides axial location in both directions with higher stability.
N TypeBasic design mainly for radial load applications.
NF TypeDesigned for axial location in the opposite direction of NJ type.
NH TypeCombination of NJ type inner ring with L-shaped retaining ring for improved axial guidance.

Double Row Cylindrical Roller Bearings

TypeDescription
NN TypeHigh rigidity double-row design for heavy radial load applications.
NNU TypeEnhanced load capacity with stable performance in precision machinery.

Design Characteristics & Functional Differences

Cylindrical roller bearings are categorized based on the presence or absence of ribs on inner and outer rings, which determines their axial load handling and displacement capability. Proper selection of bearing type ensures optimal balance between radial load capacity, axial guidance, and thermal expansion accommodation.

Applications

Cylindrical roller bearings are widely used in industrial systems that require high radial load capacity, stiffness, and reliable high-speed performance.

  • Gearboxes
  • Electric motors
  • Machine tool spindles
  • Steel production machinery
  • Mining equipment
  • Compressors
  • Pumps
  • Heavy-duty industrial drives
  • Rail and transportation systems
  • Paper and textile machinery

Technical Specifications

ItemAvailable Options
StructureSingle Row / Double Row
SeriesN / NU / NJ / NUP / NF / NH / NN / NNU
Bore DiameterAccording to bearing series
Precision GradeP0 / P6 / P5 / P4
ClearanceCN / C2 / C3 / C4
Cage MaterialSteel / Brass / Polyamide
SealingOpen Type
LubricationGrease or Oil
MaterialHigh Carbon Chrome Bearing Steel

Dimensions Table

Please refer to the table below for detailed dimensions and specifications of each model and series.

Many additional bearing models and customized specifications are available. If you have specific requirements, please feel free to contact us for technical support and selection guidance.

Model NO. Dimensions(mm)
N NU NJ
N 1005 NU 1005 NJ 1005 25*47*12
N 1006 NU 1006 NJ 1006 30*55*13
N 1007 NU 1007 NJ 1007 35*62*14
N 1008 NU 1008 NJ 1008 40*68*15
N 1009 NU 1009 NJ 1009 45*75*16
N 1010 NU 1010 NJ 1010 50*80*16
N 1011 NU 1011 NJ 1011 55*90*18
N 1012 NU 1012 NJ 1012 60*95*18
N 1013 NU 1013 NJ 1013 65*100*18
N 1014 NU 1014 NJ 1014 70*110*20
N 1015 NU 1015 NJ 1015 75*115*20
N 1016 NU 1016 NJ 1016 80*125*22
N 1017 NU 1017 NJ 1017 85*130*22
N 1018 NU 1018 NJ 1018 90*140*24
N 1019 NU 1019 NJ 1019 95*145*24
N 1020 NU 1020 NJ 1020 100*150*24
N 1021 NU 1021 NJ 1021 105*160*26
N 1022 NU 1022 NJ 1022 110*170*28
N 1024 NU 1024 NJ 1024 120*180*28
N 1026 NU 1026 NJ 1026 130*200*33
N 1028 NU 1028 NJ 1028 140*210*33
N 1030 NU 1030 NJ 1030 150*225*35
N 1032 NU 1032 NJ 1032 160*240*38
N 1034 NU 1034 NJ 1034 170*260*42
N 1036 NU 1036 NJ 1036 180*280*46
N 1038 NU 1038 NJ 1038 190*290*46
N 1040 NU 1040 NJ 1040 200*310*51
N 1044 NU 1044 NJ 1044 220*340*56
N 1048 NU 1048 NJ 1048 240*360*56
N 1052 NU 1052 NJ 1052 260*400*65
N 1056 NU 1056 NJ 1056 280*420*65
N 1060 NU 1060 NJ 1060 300*460*74
N 1064 NU 1064 NJ 1064 320*480*74
N 1068 NU 1068 NJ 1068 340*520*82
N 1072 NU 1072 NJ 1072 360*540*82
N 1076 NU 1076 NJ 1076 380*560*82
N 1080 NU 1080 NJ 1080 400*600*90
N 1084 NU 1084 NJ 1084 420*620*90
N 1088 NU 1088 NJ 1088 440*650*94
N 1092 NU 1092 NJ 1092 460*680*100
N 1096 NU 1096 NJ 1096 480*700*100
N 202 NU 202 NJ 202 15*35*11
N 203 NU 203 NJ 203 17*40*12
N 204 NU 204 NJ 204 20*47*14
N 205 NU 205 NJ 205 25*52*15
N 206 NU 206 NJ 206 30*62*16
N 207 NU 207 NJ 207 35*72*17
N 208 NU 208 NJ 208 40*80*18
N 209 NU 209 NJ 209 45*85*19
N 210 NU 210 NJ 210 50*90*20
N 211 NU 211 NJ 211 55*100*21
N 212 NU 212 NJ 212 60*110*22
N 213 NU 213 NJ 213 65*120*23
N 214 NU 214 NJ 214 70*125*24
N 215 NU 215 NJ 215 75*130*25
N 216 NU 216 NJ 216 80*140*26
N 217 NU 217 NJ 217 85*150*28
N 218 NU 218 NJ 218 90*160*30
N 219 NU 219 NJ 219 95*170*32
N 220 NU 220 NJ 220 100*180*34
N 221 NU 221 NJ 221 105*190*36
N 222 NU 222 NJ 222 110*200*38
N 224 NU 224 NJ 224 120*215*40
N 226 NU 226 NJ 226 130*230*40
N 228 NU 228 NJ 228 140*250*42
N 230 NU 230 NJ 230 150*270*45
N 232 NU 232 NJ 232 160*290*48
N 234 NU 234 NJ 234 170*310*52
N 236 NU 236 NJ 236 180*320*52
N 238 NU 238 NJ 238 190*340*55
N 240 NU 240 NJ 240 200*360*58
N 244 NU 244 NJ 244 220*400*65
N 248 NU 248 NJ 248 240*440*72
N 252 NU 252 NJ 252 260*480*80
N 256 NU 256 NJ 256 280*500*80
N 260 NU 260 NJ 260 300*540*85
N 264 NU 264 NJ 264 320*580*92
N 2203 NU 2203 NJ 2203 17*40*16
N 2204 NU 2204 NJ 2204 20*47*18
N 2205 NU 2205 NJ 2205 25*52*18
N 2206 NU 2206 NJ 2206 30*62*20
N 2207 NU 2207 NJ 2207 35*72*23
N 2208 NU 2208 NJ 2208 40*80*23
N 2209 NU 2209 NJ 2209 45*85*23
N 2210 NU 2210 NJ 2210 50*90*23
N 2211 NU 2211 NJ 2211 55*100*25
N 2212 NU 2212 NJ 2212 60*110*28
N 2213 NU 2213 NJ 2213 65*120*31
N 2214 NU 2214 NJ 2214 70*125*31
N 2215 NU 2215 NJ 2215 75*130*31
N 2216 NU 2216 NJ 2216 80*140*33
N 2217 NU 2217 NJ 2217 85*150*36
N 2218 NU 2218 NJ 2218 90*160*40
N 2219 NU 2219 NJ 2219 95*170*43
N 2220 NU 2220 NJ 2220 100*180*46
N 2222 NU 2222 NJ 2222 110*200*53
N 2224 NU 2224 NJ 2224 120*215*58
N 2226 NU 2226 NJ 2226 130*230*64
N 2228 NU 2228 NJ 2228 140*250*68
N 2230 NU 2230 NJ 2230 150*270*73
N 2232 NU 2232 NJ 2232 160*290*80
N 2234 NU 2234 NJ 2234 170*310*86
N 2236 NU 2236 NJ 2236 180*320*86
N 2238 NU 2238 NJ 2238 190*340*92
N 2240 NU 2240 NJ 2240 200*360*98
N 303 NU 303 NJ 303 17*47*14
N 304 NU 304 NJ 304 20*52*15
N 305 NU 305 NJ 305 25*62*17
N 306 NU 306 NJ 306 30*72*19
N 307 NU 307 NJ 307 35*80*21
N 308 NU 308 NJ 308 40*90*23
N 309 NU 309 NJ 309 45*100*25
N 310 NU 310 NJ 310 50*110*27
N 311 NU 311 NJ 311 55*120*29
N 312 NU 312 NJ 312 60*130*31
N 313 NU 313 NJ 313 65*140*33
N 314 NU 314 NJ 314 70*150*35
N 315 NU 315 NJ 315 75*160*37
N 316 NU 316 NJ 316 80*170*39
N 317 NU 317 NJ 317 85*180*41
N 318 NU 318 NJ 318 90*190*43
N 319 NU 319 NJ 319 95*200*45
N 320 NU 320 NJ 320 100*215*47
N 321 NU 321 NJ 321 105*225*49
N 322 NU 322 NJ 322 110*240*50
N 324 NU 324 NJ 324 120*260*55
N 326 NU 326 NJ 326 130*280*58
N 328 NU 328 NJ 328 140*300*62
N 330 NU 330 NJ 330 150*320*65
N 332 NU 332 NJ 332 160*340*68
N 334 NU 334 NJ 334 170*360*72
N 336 NU 336 NJ 336 180*380*75
N 338 NU 338 NJ 338 190*400*78
N 340 NU 340 NJ 340 200*420*80
N 344 NU 344 NJ 344 220*460*88
N 348 NU 348 NJ 348 240*500*95
N 352 NU 352 NJ 352 260*540*102
N 2304 NU 2304 NJ 2304 20*52*21
N 2305 NU 2305 NJ 2305 25*62*24
N 2306 NU 2306 NJ 2306 30*72*27
N 2307 NU 2307 NJ 2307 35*80*31
N 2308 NU 2308 NJ 2308 40*90*33
N 2309 NU 2309 NJ 2309 45*100*36
N 2310 NU 2310 NJ 2310 50*110*40
N 2311 NU 2311 NJ 2311 55*120*43
N 2312 NU 2312 NJ 2312 60*130*46
N 2313 NU 2313 NJ 2313 65*140*48
N 2314 NU 2314 NJ 2314 70*150*51
N 2315 NU 2315 NJ 2315 75*160*55
N 2316 NU 2316 NJ 2316 80*170*58
N 2317 NU 2317 NJ 2317 85*180*60
N 2318 NU 2318 NJ 2318 90*190*64
N 2319 NU 2319 NJ 2319 95*200*67
N 2320 NU 2320 NJ 2320 100*215*73
N 2322 NU 2322 NJ 2322 110*240*80
N 2324 NU 2324 NJ 2324 120*260*86
N 2326 NU 2326 NJ 2326 130*280*93
N 2328 NU 2328 NJ 2328 140*300*102
N 2330 NU 2330 NJ 2330 150*320*108
N 2332 NU 2332 NJ 2332 160*340*114
N 406 NU 406 NJ 406 30*90*23
N 407 NU 407 NJ 407 35*100*25
N 408 NU 408 NJ 408 40*110*27
N 409 NU 409 NJ 409 45*120*29
N 410 NU 410 NJ 410 50*130*31
N 411 NU 411 NJ 411 55*140*33
N 412 NU 412 NJ 412 60*150*35
N 413 NU 413 NJ 413 65*160*37
N 414 NU 414 NJ 414 70*180*42
N 415 NU 415 NJ 415 75*190*45
N 416 NU 416 NJ 416 80*200*48
N 417 NU 417 NJ 417 85*210*52
N 418 NU 418 NJ 418 90*225*54
N 419 NU 419 NJ 419 95*240*55
N 420 NU 420 NJ 420 100*250*58
N 421 NU 421 NJ 421 105*260*60
N 422 NU 422 NJ 422 110*280*65
N 424 NU 424 NJ 424 120*310*72
N 426 NU 426 NJ 426 130*340*78
N 428 NU 428 NJ 428 140*360*82
N 430 NU 430 NJ 430 150*380*85
Model NO. Dimensions(mm) Model NO. Dimensions(mm)
NN 4920 100*140*40 NNU 4920 100*140*40
NN 4921 105*145*40 NNU 4921 105*145*40
NN 4922 110*150*40 NNU 4922 110*150*40
NN 4924 120*165*45 NNU 4924 120*165*45
NN 4926 130*180*50 NNU 4926 130*180*50
NN 4928 140*190*50 NNU 4928 140*190*50
NN 4930 150*210*60 NNU 4930 150*210*60
NN 4932 160*220*60 NNU 4932 160*220*60
NN 4934 170*230*60 NNU 4934 170*230*60
NN 4936 180*250*69 NNU 4936 180*250*69
NN 4938 190*260*69 NNU 4938 190*260*69
NN 4940 200*280*80 NNU 4940 200*280*80
NN 4944 220*300*80 NNU 4944 220*300*80
NN 4948 240*320*80 NNU 4948 240*320*80
NN 4952 260*360*100 NNU 4952 260*360*100
NN 4956 280*380*100 NNU 4956 280*380*100
NN 4960 300*420*118 NNU 4960 300*420*118
NN 4964 320*440*118 NNU 4964 320*440*118
NN 3005 25*47*16 NNU 4968 340*460*118
NN 3006 30*55*19 NNU 4972 360*480*118
NN 3007 35*62*20 NNU 4976 380*520*140
NN 3008 40*68*21 NNU 4980 400*540*140
NN 3009 45*75*23 NNU 4984 420*560*140
NN 3010 50*80*23 NNU 4988 440*600*160
NN 3011 55*90*26 NNU 4992 460*620*160
NN 3012 60*95*26 NNU 4996 480*650*170
NN 3013 65*100*26 NNU 49/500 500*670*170
NN 3014 70*110*30 NNU 49/530 530*710*180
NN 3015 75*115*30 NNU 49/560 560*750*190
NN 3016 80*125*34 NNU 49/600 600*800*200
NN 3017 85*130*34 NNU 49/630 630*850*218
NN 3018 90*140*37 NNU 49/670 670*900*230
NN 3019 95*145*37 NNU 49/710 710*950*243
NN 3020 100*150*37 NNU 49/750 750*1000*250
NN 3021 105*160*41 NNU 4120 100*165*65
NN 3022 110*170*45 NNU 4121 105*175*69
NN 3024 120*180*46 NNU 4122 110*180*69
NN 3026 130*200*52 NNU 4124 120*200*80
NN 3028 140*210*53 NNU 4126 130*210*80
NN 3030 150*225*56 NNU 4128 140*225*85
NN 3032 160*240*60 NNU 4130 150*250*100
NN 3034 170*260*67 NNU 4132 160*270*109
NN 3036 180*280*74 NNU 4134 170*280*109
NN 3038 190*290*75 NNU 4136 180*300*118
NN 3040 200*310*82 NNU 4138 190*320*128
NN 3044 220*340*90 NNU 4140 200*340*140
NN 3048 240*360*92 NNU 4144 220*370*150
NN 3052 260*400*104 NNU 4148 240*400*160
NN 3056 280*420*106 NNU 4152 260*440*180
NN 3060 300*460*118 NNU 4156 280*460*180
NN 3064 320*480*121 NNU 4160 300*500*200
NN 3068 340*520*133 NNU 4164 320*540*218
NN 3072 360*540*134 NNU 4168 340*580*243
NN 3076 380*560*135 NNU 4172 360*600*243
NN 3080 400*600*148 NNU 4176 380*620*243
NN 3084 420*620*150 NNU 4180 400*650*250
NN 3088 440*650*157 NNU 4184 420*700*280
NN 3092 460*680*163 NNU 4188 440*720*280
NN 3096 480*700*165 NNU 4192 460*760*300
NN 30/500 500*720*167 NNU 4196 480*790*308
NN 30/530 530*780*185 NNU 41/500 500*830*325
NN 30/560 560*820*195 NNU 41/530 530*870*335
NN 30/600 600*870*200 NNU 41/560 560*920*355
NN 30/630 630*920*212 NNU 41/600 600*980*375
NN 30/670 670*980*230 NNU 41/630 630*1030*400
NNU 41/670 670*1090*412
NNU 41/710 710*1150*438
NNU 41/750 750*1220*475
NNU 41/800 800*1280*475

Q & A

What are cylindrical roller bearings used for?

Cylindrical roller bearings are mainly used to support heavy radial loads in high-speed applications.
They are commonly found in gearboxes, electric motors, machine tools, and heavy industrial machinery where high rigidity and durability are required.

What is the difference between NU, NJ, NUP, and N types?

NU type allows axial movement in both directions, NJ type supports axial location in one direction, and NUP type provides axial location in both directions.
N type is mainly designed for radial load applications without axial positioning capability.

Can cylindrical roller bearings carry axial loads?

Cylindrical roller bearings are primarily designed for radial loads.
Some designs (such as NJ, NUP, and NF types) can accommodate limited axial loads depending on the structure.

What is the advantage of cylindrical roller bearings compared to ball bearings?

Compared with ball bearings, cylindrical roller bearings provide higher radial load capacity, greater rigidity, and better performance under heavy-duty conditions. Their line contact design allows them to handle higher loads while maintaining stable operation at high speeds.

How do I choose the right cylindrical roller bearing type?

The selection depends on load direction, shaft positioning requirements, speed, and operating conditions. NU types are used for floating ends, NJ and NUP types are used for locating positions, while double row types (NN, NNU) are preferred for heavy radial loads and high rigidity applications.

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