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NU2308 Cylindrical Roller Bearing.jpg

NU2308 Split Cylindrical Roller Bearing 40x90x33 - High Load Capacity - China Suppliers and Factory

Structural Design of High-Performance Bearings

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Our innovative bearing structure features a split design with flangeless outer rings and inner rings equipped with flanges on both sides. This unique configuration allows the shaft to move freely in both axial directions, making it an ideal choice for floating end applications. Designed for high-performance, these bearings offer impressive radial load capacity, a low friction coefficient, and excellent suitability for high-speed rotation. As a leading China manufacturer, we pride ourselves on being trusted suppliers in the industry, delivering top-quality products directly from our advanced factory.

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    Product Details

    Bearing Details: NU2308 Cylindrical Roller Bearing

    Item No. NU2308
    Bearing Type Cylindrical roller bearing
    Material Chrome steel GCr15
    Precision P0, P2, P5, P6, P4
    Clearance C0, C2, C3, C4, C5
    Brand JITO or OEM
    Specification 40 * 90 * 33 mm
    Weight 0.951 kg
    Dynamic Load Rating 82.5 kN
    Static Load Rating 88 kN
    Fatigue Limit Load 5.25 kN
    Operating Temperature -40℃ ~ 120℃
    Fatigue Load 1.22 kN
    Grease Limit Speed 7000 r/min
    Oil Limit Speed 8200 r/min
    Bearing Features • Long service life with high quality
    • Low noise with strict JITO bearing quality control
    • High load capacity via advanced technical design
    • Cost-competitive value
    • OEM customization service available
    Application Automotive industry, Agricultural machinery, Industrial machinery
    Package Pallet, wooden case, commercial packaging or customized per customer requirement

    NU2308 Key Performance & Engineering Features

    Large Radial Load Capacity

    The cylindrical rollers and raceways are in modified line contact, offering superior radial load capability. It withstands heavy shocks and continuous impact loads in heavy equipment like rock drills, crushers, and rolling mills.

    Optimized for High-Speed Rotation

    Featuring a minimal friction coefficient, its limiting speed approaches that of deep groove ball bearings. Low frictional resistance between rolling elements and rib guides ensures stable continuous high-speed performance in precision machinery.

    Axial Displacement Adaptability

    The NU configuration allows smooth axial displacement relative to the housing. It accommodates thermal shaft expansion and installation tolerances effectively, making it ideal as a free-end (non-locating) bearing support.

    Separable Design for Easy Assembly

    The inner and outer rings can be separated independently. This simplifies mounting, dismounting, routine inspection, and on-site maintenance, significantly reducing machine downtime and operational costs.

    Versatile Industrial Applications

    Engineered for robust mechanical environments, NU2308 is widely utilized across mining, metallurgical, construction, woodworking, and chemical machinery, including tunneling machines, forklifts, and vibrating screens.

    Primary Application Fields

    Industrial Machinery

    Supports high-precision machine tool spindles under heavy radial loads to ensure rotation accuracy and surface finish. In concrete mixers, it supports heavy-duty mixing shafts under massive radial torque and vibrations.

    Agricultural Machinery

    Applied in tractor transmission gearboxes and harvester conveyor rollers, delivering reliable torque transmission, resistance against severe shock loads, and smooth material handling under harsh farming conditions.

    Automotive & Powertrain

    Utilized on automotive transmission input, output, and intermediate shafts to handle radial mesh gear loads, maintain gear alignment accuracy, and support heavy vehicle wheel/hub assemblies.

    Compressors & Ventilation

    Essential for air conditioning compressor crankshafts to counter continuous compression loads. In large industrial ventilation blowers, it ensures drive shaft stability and long-term continuous aeration.

    Complete Product Series Specification Sheet

    Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (N) Limiting Speeds (r/min) Weight
    NU NJ NUP N NF d D B r (min) r1 (min) Cr (Dynamic) Cor (Static) Grease Oil kg (approx)
    NU204 NJ NUP N NF 20 47 14 1 0.6 16600 13900 17000 20000 0.111
    NU204E NJ NUP - - 47 14 1 0.6 25700 22600 15000 18000 0.122
    NU2204 NJ NUP N - 47 18 1 0.6 22200 20300 15000 18000 0.144
    NU2204E NJ NUP - - 47 18 1 0.6 30500 28300 14000 16000 0.158
    NU304 NJ NUP N NF 52 15 1.1 0.6 23100 19200 14000 17000 0.153
    NU304E NJ NUP - - 52 15 1.1 0.6 31500 26900 13000 15000 0.176
    NU2304 NJ NUP N - 52 21 1.1 0.6 33000 30000 13000 15000 0.250
    NU2304E NJ NUP - - 52 21 1.1 0.6 42000 39000 12000 14000 0.242
    NU1005 NJ NUP N - 25 47 12 0.6 0.3 15100 14100 16000 19000 0.092
    NU205 NJ NUP N NF 52 15 1 0.6 18800 17000 14000 16000 0.137
    NU205E NJ NUP - - 52 15 1 0.6 29300 27700 13000 15000 0.151
    NU2205 NJ NUP N - 52 18 1 0.6 25100 24700 13000 15000 0.166
    NU2205E NJ NUP - - 52 18 1 0.6 35000 34500 11000 13000 0.186
    NU305 NJ NUP N NF 62 17 1.1 1.1 31500 27700 12000 14000 0.241
    NU305E NJ NUP - - 62 17 1.1 1.1 41500 37500 11000 13000 0.275
    NU2305 NJ NUP N - 62 24 1.1 1.1 46000 45000 11000 12000 0.343
    NU2305E NJ NUP - - 62 24 1.1 1.1 57000 56000 9700 11000 0.386
    NU405 NJ NUP N NF 80 21 1.5 1.5 46500 40000 8500 10000 0.550
    NU1006 NJ NUP N - 30 55 13 1 0.6 19700 19600 14000 16000 0.130
    NU206 NJ NUP N NF 62 16 1 0.6 24900 23300 12000 14000 0.207
    NU206E NJ NUP - - 62 16 1 0.6 39000 37500 11000 13000 0.226
    NU2206 NJ NUP N - 62 20 1 0.6 35000 36000 11000 13000 0.261
    NU2206E NJ NUP - - 62 20 1 0.6 49000 50000 9700 11000 0.297
    NU306 NJ NUP N NF 72 19 1.1 1.1 38500 35000 10000 12000 0.358
    NU306E NJ NUP - - 72 19 1.1 1.1 53000 50000 9300 11000 0.398
    NU2306 NJ NUP N - 72 27 1.1 1.1 51500 51000 9000 11000 0.513
    NU2306E NJ NUP - - 72 27 1.1 1.1 74500 77500 8300 9700 0.580
    NU3306 - - - - 72 30.2 1.1 1.1 69000 74000 7000 11000 -
    NU406 NJ NUP N NF 90 23 1.5 1.5 62500 55000 7300 8500 0.751
    NU1007 NJ NUP N - 35 62 14 1 0.6 22600 23200 12000 15000 0.179
    NU207 NJ NUP N NF 72 17 1.1 0.6 35500 34000 11000 12000 0.295
    NU207E NJ NUP - - 72 17 1.1 0.6 50500 50000 9500 11000 0.327
    NU2207 NJ NUP N - 72 23 1.1 0.6 52000 55500 9500 11000 0.404
    NU2207E NJ NUP - - 72 23 1.1 0.6 61500 65500 8500 10000 0.455
    NU307 NJ NUP N NF 80 21 1.5 1.1 49500 47000 9000 11000 0.461
    NU307E NJ NUP - - 80 21 1.5 1.1 71000 71000 8100 9600 0.545
    NU2307 NJ NUP N - 80 31 1.5 1.1 64500 65500 7900 9300 0.712
    NU2307E NJ NUP - - 80 31 1.5 1.1 99000 109000 7200 8500 0.780
    NU3307 - - - - 80 34.9 1.5 1.5 81000 89000 7000 10000 -
    NU407 NJ NUP N NF 100 25 1.5 1.5 75500 69000 6400 7500 0.990
    NU1008 NJ NUP N - 40 68 15 1 0.6 27300 29000 11000 13000 0.220
    NU208 NJ NUP N NF 80 18 1.1 1.1 43800 43000 9400 11000 0.378
    NU208E NJ NUP - - 80 18 1.1 1.1 55500 55500 8500 10000 0.426
    NU2208 NJ NUP N - 80 23 1.1 1.1 58000 62000 8500 10000 0.490
    NU2208E NJ NUP - - 80 23 1.1 1.1 72500 77500 7600 8900 0.552
    NU308 NJ NUP N NF 90 23 1.5 1.5 58500 57000 8000 9400 0.658
    NU308E NJ NUP - - 90 23 1.5 1.5 83000 81000 7200 8500 0.754
    NU2308 NJ NUP N - 90 33 1.5 1.5 82500 88000 7000 8200 0.951
    NU2308E NJ NUP - - 90 33 1.5 1.5 114000 122000 6400 7500 1.060
    NU408 NJ NUP N NF 110 27 2 2 95500 89000 5700 6700 1.300
    NU1009 NJ NUP N - 45 75 16 1 0.6 31000 34000 9900 12000 0.280
    NU209 NJ NUP N NF 85 19 1.1 1.1 46000 47000 8400 9900 0.432
    NU209E NJ NUP - - 85 19 1.1 1.1 63000 66500 7600 9000 0.495
    NU2209 NJ NUP N - 85 23 1.1 1.1 61500 68000 7600 9000 0.530
    NU2209E NJ NUP - - 85 23 1.1 1.1 76000 84500 6800 8000 0.600
    NU309 NJ NUP N NF 100 25 1.5 1.5 79000 77500 7200 8400 0.877
    NU309E NJ NUP - - 100 25 1.5 1.5 97500 98000 6500 7600 0.996
    NU2309 NJ NUP N - 100 36 1.5 1.5 106000 113000 6300 7400 1.270
    NU2309E NJ NUP - - 100 36 1.5 1.5 137000 153000 5700 6800 1.410
    NU409 NJ NUP N NF 120 29 2 2 115000 36000 5100 6000 1.620
    NU1010 NJ NUP N - 50 80 16 1 0.6 32000 36000 8900 11000 0.295
    NU210 NJ NUP N NF 90 20 1.1 1.1 50500 54500 7600 9000 0.470
    NU210E NJ NUP - - 90 20 1.1 1.1 66000 72000 6900 8100 0.540
    NU2210 NJ NUP N - 90 23 1.1 1.1 67500 78500 6900 8100 0.571
    NU2210E NJ NUP - - 90 23 1.1 1.1 79500 91500 6200 7300 0.652
    NU310 NJ NUP N NF 110 27 2 2 87000 86000 6500 7700 1.140
    NU310E NJ NUP - - 110 27 2 2 110000 113000 5900 6900 1.300
    NU2310 NJ NUP N - 110 40 2 2 121000 131000 5700 6700 1.700
    NU2310E NJ NUP - - 110 40 2 2 163000 187000 5200 6100 1.900
    NU410 NJ NUP N NF 130 31 2.1 2.1 139000 136000 4700 5500 2.020
    NU1011 NJ NUP N - 55 90 18 1.1 1 37500 44000 8200 9700 0.442
    NU211 NJ NUP N NF 100 21 1.5 1.1 61000 66500 6900 8200 0.638
    NU211E NJ NUP - - 100 21 1.5 1.1 82500 93000 6300 7400 0.718
    NU2211 NJ NUP N - 100 25 1.5 1.1 79000 93000 6300 7400 0.773
    NU2211E NJ NUP - - 100 25 1.5 1.1 97000 114000 5600 6600 0.968
    NU311 NJ NUP N NF 120 29 2 2 111000 111000 5900 7000 1.450
    NU311E NJ NUP - - 120 29 2 2 137000 143000 5300 6300 1.650
    NU2311 NJ NUP N - 120 43 2 2 148000 162000 5200 6100 2.170
    NU2311E NJ NUP - - 120 43 2 2 201000 233000 4700 5600 2.370
    NU411 NJ NUP N NF 140 33 2.1 2.1 139000 138000 4300 5000 2.480
    NU1012 NJ NUP N - 60 95 18 1.1 1 40000 48500 7500 8800 0.474
    NU212 NJ NUP N NF 110 22 1.5 1.5 72000 80000 6400 7600 0.818
    NU212E NJ NUP - - 110 22 1.5 1.5 97000 107000 5800 6800 0.923
    NU2212 NJ NUP N - 110 28 1.5 1.5 101000 123000 5800 6800 1.060
    NU2212E NJ NUP - - 110 28 1.5 1.5 131000 157000 5200 6100 1.210
    NU312 NJ NUP N NF 130 31 2.1 2.1 124000 126000 5500 6500 1.800
    NU312E NJ NUP - - 130 31 2.1 2.1 150000 157000 4900 5800 2.050
    NU2312 NJ NUP N - 130 46 2.1 2.1 169000 188000 4800 5700 2.710
    NU2312E NJ NUP - - 130 46 2.1 2.1 222000 262000 4400 5200 2.960
    NU412 NJ NUP N NF 150 35 2.1 2.1 167000 168000 3900 4600 3.000
    NU1013 NJ NUP N - 65 100 18 1.1 1 41000 51000 7000 8200 0.485
    NU213 NJ NUP N NF 120 23 1.5 1.5 84000 94500 5900 7000 1.020
    NU213E NJ NUP - - 120 23 1.5 1.5 108000 119000 5400 6300 1.210
    NU2213 NJ NUP N - 120 31 1.5 1.5 120000 149000 5400 6300 1.400
    NU2213E NJ NUP - - 120 31 1.5 1.5 149000 181000 4800 5600 1.600
    NU313 NJ NUP N NF 140 33 2.1 2.1 135000 139000 5100 6000 2.230
    NU313E NJ NUP - - 140 33 2.1 2.1 181000 191000 4600 5400 2.540
    NU2313 NJ NUP N - 140 48 2.1 2.1 188000 212000 4400 5200 3.270
    NU2313E NJ NUP - - 140 48 2.1 2.1 248000 287000 4100 4800 3.480
    NU413 NJ NUP N NF 160 37 2.1 2.1 195000 203000 3600 4300 3.600
    NU1014 NJ NUP N - 70 110 20 1.1 1 58500 70500 6500 7600 0.699
    NU214 NJ NUP N NF 125 24 1.5 1.5 87500 101000 5500 6500 1.120
    NU214E NJ NUP - - 125 24 1.5 1.5 119000 137000 5000 5900 1.300
    NU2214 NJ NUP N - 125 31 1.5 1.5 125000 160000 5000 5900 1.470
    NU2214E NJ NUP - - 125 31 1.5 1.5 156000 194000 4500 5200 1.700
    NU314 NJ NUP N NF 150 35 2.1 2.1 158000 168000 4700 5500 2.710
    NU314E NJ NUP - - 150 35 2.1 2.1 205000 222000 4200 5000 3.100
    NU2314 NJ NUP N - 150 51 2.1 2.1 223000 262000 4100 4800 3.980
    NU2314E NJ NUP - - 150 51 2.1 2.1 274000 325000 3800 4400 4.250
    NU414 NJ NUP N NF 180 42 3 3 243000 257000 3400 4000 5.240
    NU1015 NJ NUP N - 75 115 20 1.1 1 60000 74500 6100 7100 0.738
    NU215 NJ NUP N NF 130 25 1.5 1.5 101000 118000 5100 6000 1.230
    NU215E NJ NUP - - 130 25 1.5 1.5 130000 156000 4700 5500 1.410
    NU2215 NJ NUP N - 130 31 1.5 1.5 136000 172000 4700 5500 1.550
    NU2215E NJ NUP - - 130 31 1.5 1.5 162000 207000 4200 4900 1.790
    NU315 NJ NUP N NF 160 37 2.1 2.1 190000 205000 4000 5200 3.280
    NU315E NJ NUP - - 160 37 2.1 2.1 240000 263000 4400 4700 3.740
    NU2315 NJ NUP N - 160 55 2.1 2.1 274000 325000 3800 4500 4.870
    NU2315E NJ NUP - - 160 55 2.1 2.1 330000 395000 3500 4100 5.250
    NU415 NJ NUP N NF 190 45 3 3 262000 274000 3200 3700 6.220
    NU1016 NJ NUP N - 80 125 22 1.1 1 72500 90500 5700 6700 0.980
    NU216 NJ NUP N NF 140 26 2 2 111000 130000 4800 5700 1.500
    NU216E NJ NUP - - 140 26 2 2 139000 167000 4400 5100 1.670
    NU2216 NJ NUP N - 140 33 2 2 154000 198000 4400 5100 1.930
    NU2216E NJ NUP - - 140 33 2 2 186000 242000 3900 4600 2.120
    NU316 NJ NUP N NF 170 39 2.1 2.1 201000 223000 4100 4800 3.860
    NU316E NJ NUP - - 170 39 2.1 2.1 256000 282000 3700 4400 4.220
    NU2316 NJ NUP N - 170 58 2.1 2.1 274000 330000 3600 4200 5.790
    NU2316E NJ NUP - - 170 58 2.1 2.1 355000 430000 3300 3900 6.250
    NU416 NJ NUP N NF 200 48 3 3 299000 315000 3000 3500 7.320
    NU1017 NJ NUP N - 85 130 22 1.1 1 74500 95500 5400 6300 1.030
    NU217 NJ NUP N NF 150 28 2 2 126000 149000 4500 5300 1.870
    NU217E NJ NUP - - 150 28 2 2 167000 199000 4100 4800 2.110
    NU2217 NJ NUP N - 150 36 2 2 178000 232000 4100 4800 2.440
    NU2217E NJ NUP - - 150 36 2 2 217000 279000 3700 4300 2.680
    NU317 NJ NUP N NF 180 41 3 3 225000 247000 3900 4600 4.540
    NU317E NJ NUP - - 180 41 3 3 291000 330000 3500 4100 4.810
    NU2317 NJ NUP N - 180 60 3 3 315000 380000 3400 4000 6.700
    NU2317E NJ NUP - - 180 60 3 3 395000 485000 3100 3700 7.160
    NU417 NJ NUP N NF 210 52 4 4 335000 350000 2800 3300 9.400
    NU1018 NJ NUP N - 90 140 24 1.5 1 88000 114000 5100 5900 1.330
    NU218 NJ NUP N NF 160 30 2 2 152000 178000 4300 5000 2.300
    NU218E NJ NUP - - 160 30 2 2 182000 217000 3900 4600 2.440
    NU2218 NJ NUP N - 160 40 2 2 207000 265000 3900 4600 3.100
    NU2218E NJ NUP - - 160 40 2 2 242000 315000 3500 4100 3.330
    NU318 NJ NUP N NF 190 43 3 3 240000 265000 3700 4300 5.300
    NU318E NJ NUP - - 190 43 3 3 315000 355000 3300 3900 5.720
    NU2318 NJ NUP N - 190 64 3 3 325000 395000 3200 3800 7.950
    NU2318E NJ NUP - - 190 64 3 3 435000 535000 2900 3400 8.560
    NU418 NJ NUP N NF 225 54 4 4 375000 400000 2600 3100 11.200
    NU1019 NJ NUP N - 95 145 24 1.5 1.1 90500 120000 4800 5600 1.400
    NU219 NJ NUP N NF 170 32 2.1 2.1 166000 195000 4000 4700 2.780
    NU219E NJ NUP - - 170 32 2.1 2.1 220000 265000 3600 4300 3.020
    NU2219 NJ NUP N - 170 43 2.1 2.1 230000 298000 3600 4300 3.790
    NU2219E NJ NUP - - 170 43 2.1 2.1 286000 370000 3300 3800 4.140
    NU319 NJ NUP N NF 200 45 3 3 274000 310000 3400 4000 6.130
    NU319E NJ NUP - - 200 45 3 3 335000 385000 3100 3600 6.620
    NU2319 NJ NUP N - 200 67 3 3 395000 495000 3000 3500 9.200
    NU2319E NJ NUP - - 200 67 3 3 460000 585000 2700 3200 9.800
    NU419 NJ NUP N NF 240 55 4 4 400000 445000 2500 2900 13.200
    NU1020 NJ NUP N - 100 150 24 1.5 1.1 93000 126000 4600 5400 1.450
    NU220 NJ NUP N NF 180 34 2.1 2.1 183000 217000 3800 4500 3.330
    NU220E NJ NUP - - 180 34 2.1 2.1 249000 305000 3500 4100 3.660
    NU2220 NJ NUP N - 180 46 2.1 2.1 258000 340000 3500 4100 4.570
    NU2220E NJ NUP - - 180 46 2.1 2.1 335000 445000 3100 3600 5.010
    NU320 NJ NUP N NF 215 47 3 3 315000 365000 3300 3800 7.490
    NU320E NJ NUP - - 215 47 3 3 380000 425000 2900 3500 8.570
    NU2320 NJ NUP N - 215 73 3 3 480000 590000 2900 3400 11.700
    NU2320E NJ NUP - - 215 73 3 3 570000 715000 2600 3100 12.800
    NU420 NJ NUP N NF 250 58 4 4 445000 495000 2300 2800 14.900
    NU1021 NJ NUP N - 105 160 26 2 1.1 105000 142000 4300 5100 1.840
    NU221 NJ NUP N NF 190 36 2.1 2.1 201000 241000 3600 4300 3.950
    NU3221 NJ - - - 190 65.1 2.1 2.1 340000 480000 2400 3600 -
    NU321 NJ NUP N NF 225 49 3 3 360000 415000 3100 3700 8.530
    NU421 NJ NUP N NF 260 60 4 4 495000 555000 2200 2600 16.600
    NU1022 NJ NUP N - 110 170 28 2 1.1 131000 174000 4100 4800 2.330
    NU222 NJ NUP N NF 200 38 2.1 2.1 240000 290000 3400 4000 4.630
    NU222E NJ NUP - - 200 38 2.1 2.1 293000 365000 3100 3700 4.270
    NU2222 NJ NUP N - 200 53 2.1 2.1 335000 440000 3100 3700 6.560
    NU2222E NJ NUP - - 200 53 2.1 2.1 385000 515000 2800 3300 7.400
    NU322 NJ NUP N NF 240 50 3 3 400000 465000 3000 3500 10.000
    NU322E NJ NUP - - 240 50 3 3 450000 525000 2700 3100 11.100
    NU2322 NJ NUP N - 240 80 3 3 605000 790000 2600 3100 17.100
    NU2322E NJ NUP - - 240 80 3 3 675000 880000 2400 2800 19.400
    NU422 NJ NUP N NF 280 65 4 4 550000 620000 2100 2500 21.100
    NU1024 NJ NUP N - 120 180 28 2 1.1 139000 191000 3800 4400 2.440
    NU224 NJ NUP N NF 215 40 2.1 2.1 272000 340000 3200 3700 5.570
    NU224E NJ NUP - - 215 40 2.1 2.1 335000 420000 2900 3400 5.970
    NU2224 NJ NUP N - 215 58 2.1 2.1 380000 525000 2900 3400 8.190
    NU2224E NJ NUP - - 215 58 2.1 2.1 450000 620000 2600 3000 9.180
    NU324 NJ NUP N NF 260 55 3 3 475000 550000 2700 3200 12.800
    NU324E NJ NUP - - 260 55 3 3 530000 610000 2400 2800 13.900
    NU3224 NJ NUP N - 260 86 3 3 710000 920000 2400 2800 21.500
    NU3224E NJ NUP - - 260 86 3 3 795000 1030000 2200 2500 26.100
    NU424 NJ NUP N NF 310 72 5 5 675000 770000 1900 2300 28.900
    NU1026 NJ NUP N - 130 200 33 2 1.1 172000 238000 3400 4000 3.690
    NU226 NJ NUP N NF 230 40 3 3 282000 360000 2900 3400 6.300
    NU226E NJ NUP - - 230 40 3 3 365000 455000 2600 3100 6.900
    NU2226 NJ NUP N - 230 64 3 3 395000 560000 2600 3100 10.200
    NU2226E NJ NUP - - 230 64 3 3 530000 735000 2300 2700 11.800
    NU326 NJ NUP N NF 280 58 4 4 560000 665000 2500 2900 17.400
    NU326E NJ NUP - - 280 58 4 4 615000 735000 2200 2600 19.400
    NU2326 NJ NUP N - 280 93 4 4 840000 1130000 2200 2600 26.900
    NU2326E NJ NUP - - 280 93 4 4 920000 1230000 2000 2300 30.900
    NU426 NJ NUP N NF 340 78 5 5 825000 955000 1800 2100 37.700
    NU1028 NJ NUP N - 140 210 33 2 1.1 176000 250000 3200 3800 4.050
    NU228 NJ NUP N NF 250 42 3 3 325000 420000 2700 3100 7.880
    NU228E NJ NUP - - 250 42 3 3 395000 515000 2400 2800 8.730
    NU2228 NJ NUP N - 250 68 3 3 465000 670000 2400 2800 12.900
    NU2228E NJ NUP - - 250 68 3 3 575000 835000 2100 2500 15.800
    NU328 NJ NUP N NF 300 62 4 4 615000 745000 2300 2700 21.200
    NU328E NJ NUP - - 300 62 4 4 665000 795000 2100 2400 23.200
    NU2328 NJ NUP N - 300 102 4 4 920000 1250000 2000 2300 33.800
    NU2328E NJ NUP - - 300 102 4 4 1020000 1380000 1800 2100 38.700
    NU428 NJ NUP N NF 360 82 5 5 875000 1020000 1600 1900 44.300
    NU1030 NJ NUP N - 150 225 35 2.1 1.5 202000 294000 3000 3500 4.770
    NU230 NJ NUP N NF 270 45 3 3 375000 490000 2500 2900 9.920
    NU230E NJ NUP - - 270 45 3 3 450000 595000 2200 2600 11.000
    NU2230 NJ NUP N - 270 73 3 3 545000 800000 2200 2600 16.300
    NU2230E NJ NUP - - 270 73 3 3 660000 980000 2000 2400 19.700
    NU330 NJ NUP N NF 320 65 4 4 665000 805000 2100 2500 25.300
    NU330E NJ NUP - - 320 65 4 4 760000 920000 1900 2300 28.400
    NU2330 NJ NUP N - 320 108 4 4 1020000 1400000 1900 2200 40.600
    NU2330E NJ NUP - - 320 108 4 4 1160000 1600000 1700 2000 47.200
    NU430 NJ NUP N NF 380 85 5 5 930000 1120000 1500 1800 50.800
    NU1032 NJ - N NF 160 240 38 2.1 1.5 238000 340000 2600 3200 5.810
    N232 - - N NF 290 48 3 3 430000 570000 2200 2600 14.100
    NU232E NJ NUP - - 290 48 3 3 500000 665000 2200 2600 14.700
    NU2232E NJ NUP - - 290 80 3 3 810000 1190000 1900 2400 24.500
    N332 - - N - 340 68 4 4 700000 875000 1700 2000 30.800
    NU332E NJ NUP - - 340 68 4 4 860000 1050000 1700 2000 32.100
    NU2332E NJ NUP - - 340 114 4 4 1310000 1820000 1500 1900 53.900
    NU1034 NJ - N - 170 260 42 2.1 2.1 287000 415000 2400 2800 7.910
    N234 - - N NF 310 52 4 4 475000 635000 2000 2400 17.400
    NU234E NJ NUP - - 310 52 4 4 605000 800000 2000 2400 18.300
    NU2234E NJ NUP - - 310 86 4 4 925000 1330000 1800 2200 29.900
    N334 - - N - 360 72 4 4 795000 1010000 1600 2000 36.600
    NU334E NJ NUP - - 360 72 4 4 930000 1150000 1600 2000 37.900
    NU2334E NJ NUP - - 360 120 4 4 1490000 2070000 1400 1800 63.400
    NU1036 NJ - N NF 180 280 46 2.1 2.1 355000 510000 2200 2600 10.200
    N236 - - N NF 320 52 4 4 495000 675000 1900 2200 18.100
    NU236E NJ NUP - - 320 52 4 4 625000 850000 1900 2200 19.000
    NU2236E NJ NUP - - 320 86 4 4 1010000 1510000 1700 2000 31.400
    N336 - - N NF 380 75 4 4 905000 1150000 1500 1800 42.600
    NU336E NJ NUP - - 380 75 4 4 985000 1230000 1500 1800 44.000
    NU2336E NJ NUP - - 380 126 4 4 1560000 2220000 1300 1700 74.600
    NU1038 NJ - N - 190 290 46 2.1 2.1 365000 535000 2000 2600 10.700
    N238 - - N NF 340 55 4 4 555000 770000 1800 2200 22.000
    NU238E NJ NUP - - 340 55 4 4 695000 955000 1800 2200 23.000
    NU2238E NJ NUP - - 340 92 4 4 1100000 1670000 1600 2000 38.300
    N338 - - N - 400 78 5 5 975000 1260000 1400 1700 48.700
    NU338E NJ NUP - - 400 78 5 5 1060000 1340000 1400 1700 50.600
    NU2338E NJ NUP - - 400 132 5 5 1770000 2520000 1300 1600 86.200
    NU1040 NJ - N NF 200 310 51 2.1 2.1 390000 580000 2000 2400 14.000
    N240 - - N NF 360 58 4 4 620000 865000 1700 2000 26.200
    NU240E NJ NUP - - 360 58 4 4 765000 1060000 1700 2000 27.400
    NU2240E NJ NUP - - 360 98 4 4 1220000 1870000 1500 1800 46.100
    N340 - - N NF 420 80 5 5 975000 1270000 1300 1600 55.300
    NU340E NJ NUP - - 420 80 5 5 1140000 1450000 1300 1600 57.100
    NU2340E NJ NUP - - 420 138 5 5 1910000 2760000 1200 1500 99.300
    NU1044 NJ - N - 220 340 56 3 3 500000 750000 1800 2200 18.200
    N244 - - N NF 400 65 4 4 760000 1080000 1500 1800 37.000
    NU244 NJ NUP - - 400 65 4 4 760000 1080000 1500 1800 37.300
    NU2244 - - - - 400 108 4 4 1140000 1810000 1300 1600 61.800
    N344 - - N - 460 88 5 5 1190000 1570000 1200 1500 72.800
    NU344 NJ - - - 460 88 5 5 1190000 1570000 1200 1500 74.600
    NU1048 NJ - N - 240 360 56 3 3 530000 820000 1600 2000 19.500
    N248 - - N NF 440 72 4 4 935000 1340000 1300 1600 49.600
    NU248 NJ NUP - - 440 72 4 4 935000 1340000 1300 1600 50.400
    NU2248 - - - - 440 120 4 4 1440000 2320000 1200 1500 84.900
    N348 - - N - 500 95 5 5 1360000 1820000 1100 1300 92.300
    NU348 NJ - - - 500 95 5 5 1360000 1820000 1100 1300 94.600
    NU1052 NJ - N NF 260 400 65 4 4 645000 1000000 1500 1800 29.100
    N252 - - N - 480 80 5 5 1100000 1580000 1200 1500 66.200
    NU252 NJ - - - 480 80 5 5 1100000 1580000 1200 1500 67.100
    NU2252 - NUP - - 480 130 5 5 1710000 2770000 1100 1300 111.000
    NU352 NJ - - - 540 102 6 6 1540000 2090000 1000 1200 118.000
    NU1056 NJ NUP N NF 280 420 65 4 4 660000 1050000 1400 1700 30.800
    N256 - - N NF 500 80 5 5 1140000 1680000 1100 1400 69.600
    NU256 NJ - - - 500 80 5 5 1140000 1680000 1100 1400 70.700
    NU1060 NJ - N NF 300 460 74 4 4 885000 1400000 1300 1500 43.700
    NU260 NJ - - - 540 85 5 5 1400000 2070000 1100 1300 89.200
    NU1064 - - N NF 320 480 74 4 4 905000 1470000 1200 1400 46.100
    N264 - - N - 580 92 5 5 1540000 2270000 950 1200 110.000
    NU264 NJ - - - 580 92 5 5 1540000 2270000 950 1200 112.000
    NU1068 NJ - N NF 340 520 82 5 5 1080000 1740000 1100 1300 61.800
    NU1072 - - N NF 360 540 82 5 5 1110000 1830000 1000 1300 64.600
    NU1076 - - - - 380 560 82 5 5 1140000 1910000 1000 1200 67.500
    NU1080 - NUP N - 400 600 90 5 5 1360000 2280000 900 1100 88.200
    NU1084 - - N - 420 620 90 5 5 1390000 2380000 850 1100 91.700
    NU1088 - - - - 440 650 94 6 6 1470000 2530000 800 1000 105.000
    NU1092 - NUP N - 460 680 100 6 6 1580000 2740000 750 950 123.000
    NU1096 NJ - N - 480 700 100 6 6 1620000 2860000 750 900 127.000
    NU10/500 - - N - 500 720 100 6 6 1660000 2970000 710 850 131.000
    For more specifications and customized bearing designs, please visit: www.jito.cc

    Service Advantages & Manufacturing Guarantee

    Tailored Solution

    Our dedicated engineering team collaborates closely with customers to analyze application requirements and formulate ideal technical solutions.

    Quality Control (Q/C)

    Operating under ISO standards with advanced inspection instruments to guarantee zero-defect manufacturing from raw material to final packaging.

    Custom Packaging

    Standardized export-grade protective packing with options for custom branding, individual cartons, barcoding, and heavy-duty wooden crating.

    Global Logistics

    Flexible ocean shipping, airfreight, and door-to-door express delivery solutions to meet urgent timelines and bulk commercial consignments.

    12-Month Warranty

    12-month standard warranty coverage against material and workmanship defects from the delivery date.

    Frequently Asked Questions (FAQ)

    What are the primary dimensions and specifications of the NU2308 bearing?

    The NU2308 bearing has an inner diameter (bore) of 40 mm, an outer diameter of 90 mm, a width of 33 mm, and a total weight of approximately 0.951 kg. It delivers a dynamic load rating of 82.5 kN and a static load rating of 88 kN.

    What is the difference between NU and NJ/NUP type cylindrical roller bearings?

    NU-type bearings have two integral ribs on the outer ring and no ribs on the inner ring, allowing non-locating axial displacement in both directions. In contrast, NJ bearings have a single rib on the inner ring to take one-direction axial load, and NUP bearings provide bidirectional axial location with an additional loose rib.

    What is the maximum operating speed for the NU2308 bearing?

    Under standard lubrication conditions, the NU2308 bearing achieves a grease limiting speed of up to 7,000 r/min and an oil lubrication limiting speed of up to 8,200 r/min.

    What raw material is used for manufacturing NU series roller bearings?

    High-purity Chrome Steel (GCr15 / 100Cr6 / SAE 52100) is standardly used for rings and rollers, ensuring superior hardness, wear resistance, fatigue life, and dimensional stability within -40℃ to +120℃ operating environments.

    Can you provide OEM branding and customized clearance tolerances?

    Yes. We provide complete OEM/ODM services, including customized laser markings, private label packaging, and precision clearances ranging from C0 to C2, C3, C4, and C5 based on specific operating requirements.

    Why is NU2308 suitable as a free-end (floating) bearing?

    Because the inner ring has no flanges, the roller assembly moves freely inside the raceway without inducing secondary axial stress. This accommodates thermal elongation of long shafts in gearboxes, pumps, and heavy industrial drives.

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