"Cylindrical roller bearings are available in a wide range of designs, series, variants and sizes. The main design differences are the number of roller rows and the inner/outer ring flanges as well as cage designs and materials. The bearings can meet the challenges of applications faced with heavy radial loads and high speeds. Accommodating axial displacement (except for bearings with flanges on both the inner and outer rings), they offer high stiffness, low friction and long service life. Cylindrical roller bearings are also available in sealed or split designs. In sealed bearings, the rollers are protected from contaminants, water and dust, while providing lubricant retention and contaminant exclusion. This provides lower friction and longer service life. Split bearings are intended primarily for bearing arrangements which are difficult to access, such as crank shafts, where they simplify maintenance and replacements. "
Dimensions (mm) | Bearing Numbers | Weight | ||||||||||
d | D | B | r | r1 | FW | EW | NU series | NJ series | NUP series | N series | NF series | (kg) |
20 | 47 | 14 | 1 | 0.6 | 27 | 40 | NU204 | NJ204 | NUP204 | N204 | NF204 | 0.108 |
47 | 14 | 1 | 0.6 | 26.5 | - | NU204E | NJ204E | NUP204E | - | - | 0.112 | |
47 | 18 | 1 | 0.6 | 27 | - | NU2204 | NJ2204 | NUP2204 | - | - | 0.146 | |
47 | 18 | 1 | 0.6 | 26.5 | - | NU2204E | NJ2204E | NUP2204E | - | - | 0.146 | |
52 | 15 | 1.1 | 0.6 | 28.5 | 44.5 | NU304 | NJ304 | NUP304 | N304 | NF304 | 0.147 | |
52 | 15 | 1.1 | 0.6 | 27.5 | - | NU304E | NJ304E | NUP304E | - | - | 0.153 | |
52 | 21 | 1.1 | 0.6 | 28.5 | - | NU2304 | NJ2304 | NUP2304 | - | - | 0.212 | |
52 | 21 | 1.1 | 0.6 | 27.5 | - | NU2304E | NJ2304E | NUP2304E | - | - | 0.215 | |
25 | 47 | 12 | 0.6 | 0.3 | 30.5 | - | NU1005 | - | NUP1005 | - | - | 0.084 |
52 | 15 | 1 | 0.6 | 32 | 45 | NU205 | NJ205 | NUP205 | N205 | NF205 | 0.132 | |
52 | 15 | 1 | 0.6 | 31.5 | - | NU205E | NJ205E | NUP205E | - | - | 0.138 | |
52 | 18 | 1 | 0.6 | 32 | - | NU2205 | NJ2205 | NUP2205 | - | - | 0.163 | |
52 | 18 | 1 | 0.6 | 31.5 | - | NU2205E | NJ2205E | NUP2205E | - | - | 0.166 | |
62 | 17 | 1.1 | 1.1 | 35 | 53 | NU305 | NJ305 | NUP305 | N305 | NF305 | 0.241 | |
62 | 17 | 1.1 | 1.1 | 34 | - | NU305E | NJ305E | NUP305E | - | - | 0.243 | |
62 | 24 | 1.1 | 1.1 | 35 | - | NU2305 | NJ2305 | NUP2305 | - | - | 0.34 | |
62 | 24 | 1.1 | 1.1 | 34 | - | NU2305E | NJ2305E | NUP2305E | - | - | 0.35 | |
30 | 55 | 13 | 1 | 0.6 | 36.5 | - | NU1006 | - | NUP1006 | - | - | 0.121 |
62 | 16 | 1 | 0.6 | 38.5 | 53.5 | NU206 | NJ206 | NUP206 | N206 | NF206 | 0.2 | |
62 | 16 | 1 | 0.6 | 37.5 | - | NU206E | NJ206E | NUP206E | - | - | 0.209 | |
62 | 20 | 1 | 0.6 | 38.5 | - | NU2206 | NJ2206 | NUP2206 | - | - | 0.262 | |
62 | 20 | 1 | 0.6 | 37.5 | - | NU2206E | NJ2206E | NUP2206E | - | - | 0.262 | |
62 | 23.8 | 1 | 1 | 38.5 | - | NU3206 | - | - | - | - | 0.343 |
Dimensions (mm) | Bearing Numbers | Weight | ||||||||||
d | D | B | r | r1 | FW | EW | NU series | NJ series | NUP series | N series | NF series | (kg) |
30 | 72 | 19 | 1.1 | 1.1 | 42 | 62 | NU306 | NJ306 | NUP306 | N306 | NF306 | 0.358 |
72 | 19 | 1.1 | 1.1 | 40.5 | - | NU306E | NJ306E | NUP306E | - | - | 0.361 | |
72 | 27 | 1.1 | 1.1 | 42 | - | NU2306 | NJ2306 | NUP2306 | - | - | 0.5 | |
72 | 27 | 1.1 | 1.1 | 40.5 | - | NU2306E | NJ2306E | NUP2306E | - | - | 0.534 | |
72 | 30.2 | 1.1 | 1.1 | 42 | - | NU3306 | - | - | - | - | 0.65 | |
90 | 23 | 1.5 | 1.5 | 45 | 73 | NU406 | NJ406 | NUP406 | N406 | NF406 | 0.753 | |
35 | 62 | 14 | 1 | 0.6 | 42 | - | NU1007 | - | NUP1007 | - | - | 0.182 |
72 | 17 | 1.1 | 0.6 | 43.8 | 61.8 | NU207 | NJ207 | NUP207 | N207 | NF207 | 0.293 | |
72 | 17 | 1.1 | 0.6 | 44 | - | NU207E | NJ207E | NUP207E | - | - | 0.306 | |
72 | 23 | 1.1 | 0.6 | 43.8 | - | NU2207 | NJ2207 | NUP2207 | - | - | 0.402 | |
72 | 23 | 1.1 | 0.6 | 44 | - | NU2207E | NJ2207E | NUP2207E | - | - | 0.404 | |
72 | 27 | 1.1 | 1.1 | 43.8 | - | NU3207 | - | - | - | - | 0.524 | |
80 | 21 | 1.5 | 1.1 | 46.2 | 68.2 | NU307 | NJ307 | NUP307 | N307 | NF307 | 0.477 | |
80 | 21 | 1.5 | 1.1 | 46.2 | - | NU307E | NJ307E | NUP307E | - | - | 0.482 | |
80 | 31 | 1.5 | 1.1 | 46.2 | - | NU2307 | NJ2307 | NUP2307 | - | - | 0.696 | |
80 | 31 | 1.5 | 1.1 | 46.2 | - | NU2307E | NJ2307E | NUP2307E | - | - | 0.729 | |
80 | 34.9 | 1.5 | 1.5 | 46.2 | - | NU3307 | - | - | - | - | 0.908 | |
100 | 25 | 1.5 | 1.5 | 53 | 83 | NU407 | NJ407 | NUP407 | N407 | NF407 | 1.02 | |
40 | 68 | 15 | 1 | 0.6 | 47 | - | NU1008 | - | NUP1008 | - | - | 0.223 |
80 | 18 | 1.1 | 1.1 | 50 | 70 | NU208 | NJ208 | NUP208 | N208 | NF208 | 0.366 | |
80 | 18 | 1.1 | 1.1 | 49.5 | - | NU208E | NJ208E | NUP208E | - | - | 0.384 | |
80 | 23 | 1.1 | 1.1 | 50 | - | NU2208 | NJ2208 | NUP2208 | - | - | 0.49 | |
80 | 23 | 1.1 | 1.1 | 49.5 | - | NU2208E | NJ2208E | NUP2208E | - | - | 0.49 |
Boundary Dimensions (mm) | Bearing Numbers | Weight | ||||||||||
d | D | B | r | r1 | FW | EW | NU series | NJ series | NUP series | N series | NF series | (kg) |
40 | 80 | 30.2 | 1.1 | 1.1 | 50 | - | NU3208 | - | - | - | - | 0.711 |
90 | 23 | 1.5 | 1.5 | 53.5 | 77.5 | NU308 | NJ308 | NUP308 | N308 | NF308 | 0.657 | |
90 | 23 | 1.5 | 1.5 | 52 | - | NU308E | NJ308E | NUP308E | - | - | 0.664 | |
90 | 33 | 1.5 | 1.5 | 53.5 | - | NU2308 | NJ2308 | NUP2308 | - | - | 0.956 | |
90 | 33 | 1.5 | 1.5 | 52 | - | NU2308E | NJ2308E | NUP2308E | - | - | 0.962 | |
90 | 36.5 | 1.5 | 1.5 | 53.5 | - | NU3308 | - | - | - | - | 1.19 | |
110 | 27 | 2 | 2 | 58 | 92 | NU408 | NJ408 | NUP408 | N408 | NF408 | 1.3 | |
45 | 75 | 16 | 1 | 0.6 | 52.5 | - | NU1009 | - | NUP1009 | - | - | 0.289 |
85 | 19 | 1.1 | 1.1 | 55 | 75 | NU209 | NJ209 | NUP209 | N209 | NF209 | 0.427 | |
85 | 19 | 1.1 | 1.1 | 54.5 | - | NU209E | NJ209E | NUP209E | - | - | 0.439 | |
85 | 23 | 1.1 | 1.1 | 55 | - | NU2209 | NJ2209 | NUP2209 | - | - | 0.536 | |
85 | 23 | 1.1 | 1.1 | 54.5 | - | NU2209E | NJ2209E | NUP2209E | - | - | 0.536 | |
85 | 30.2 | 1.1 | 1.1 | 55 | - | NU3209 | - | - | - | - | 0.77 | |
100 | 25 | 1.5 | 1.5 | 58.5 | 86.5 | NU309 | NJ309 | NUP309 | N309 | NF309 | 0.87 | |
100 | 25 | 1.5 | 1.5 | 58.5 | - | NU309E | NJ309E | NUP309E | - | - | 0.909 | |
100 | 36 | 1.5 | 1.5 | 58.5 | - | NU2309 | NJ2309 | NUP2309 | - | - | 1.25 | |
100 | 36 | 1.5 | 1.5 | 58.5 | - | NU2309E | NJ2309E | NUP2309E | - | - | 1.32 | |
100 | 39.7 | 1.5 | 1.5 | 58.5 | - | NU3309 | - | - | - | - | 1.59 | |
50 | 80 | 16 | 1 | 0.6 | 57.5 | - | NU1010 | - | NUP1010 | - | - | 0.306 |
90 | 20 | 1.1 | 1.1 | 60.4 | 80.4 | NU210 | NJ210 | NUP210 | N210 | NF210 | 0.479 | |
90 | 20 | 1.1 | 1.1 | 59.5 | - | NU210E | NJ210E | NUP210E | - | - | 0.497 | |
90 | 23 | 1.1 | 1.1 | 60.4 | - | NU2210 | NJ2210 | NUP2210 | - | - | 0.58 | |
90 | 23 | 1.1 | 1.1 | 59.5 | - | NU2210E | NJ2210E | NUP2210E | - | - | 0.58 |
Dimensions (mm) | Bearing Numbers | Weight | ||||||||||
d | D | B | r | r1 | FW | EW | NU series | NJ series | NUP series | N series | NF series | (kg) |
50 | 90 | 30.2 | 1.1 | 1.1 | 60.4 | - | NU3210 | - | - | - | - | 0.829 |
110 | 27 | 2 | 2 | 65 | 95 | NU310 | NJ310 | NUP310 | N310 | NF310 | 1.15 | |
110 | 27 | 2 | 2 | 65 | - | NU310E | NJ310E | NUP310E | - | - | 1.15 | |
110 | 40 | 2 | 2 | 65 | - | NU2310 | NJ2310 | NUP2310 | - | - | 1.69 | |
110 | 40 | 2 | 2 | 65 | - | NU2310E | NJ2310E | NUP2310E | - | - | 1.76 | |
110 | 44.4 | 2 | 2 | 65 | - | NU3310 | - | - | - | - | 2.14 | |
55 | 90 | 18 | 1.1 | 1 | 64.5 | - | NU1011 | - | NUP1011 | - | - | 0.445 |
100 | 21 | 1.5 | 1.1 | 66.5 | 88.5 | NU211 | NJ211 | NUP211 | N211 | NF211 | 0.64 | |
100 | 21 | 1.5 | 1.1 | 66 | - | NU211E | NJ211E | NUP211E | - | - | 0.65 | |
100 | 25 | 1.5 | 1.1 | 66.5 | - | NU2211 | NJ2211 | NUP2211 | - | - | 0.78 | |
100 | 25 | 1.5 | 1.1 | 66 | - | NU2211E | NJ2211E | NUP2211E | - | - | 0.806 | |
100 | 33.3 | 1.5 | 1.5 | 66.5 | - | NU3211 | - | - | - | - | 1.14 | |
60 | 95 | 18 | 1.1 | 1 | 69.5 | - | NU1012 | - | NUP1012 | - | - | 0.477 |
110 | 22 | 1.5 | 1.5 | 73.5 | 97.5 | NU212 | NJ212 | NUP212 | N212 | NF212 | 0.823 | |
110 | 22 | 1.5 | 1.5 | 72 | - | NU212E | NJ212E | NUP212E | - | - | 0.83 | |
110 | 28 | 1.5 | 1.5 | 73.5 | - | NU2212 | NJ2212 | NUP2212 | - | - | 1.07 | |
110 | 28 | 1.5 | 1.5 | 72 | - | NU2212E | NJ2212E | NUP2212E | - | - | 1.09 | |
110 | 36.5 | 1.5 | 1.5 | 73.5 | - | NU3212 | - | - | - | - | 1.52 | |
65 | 100 | 18 | 1.1 | 1 | 74.5 | - | NU1013 | - | NUP1013 | - | - | 0.506 |
70 | 110 | 20 | 1.1 | 1 | 80 | - | NU1014 | - | NUP1014 | - | - | 0.702 |
Hot Products
- Date
- 22/04/2021
SKF Timken NTN NSK Koyo Brand Cylindrical Roller Bearing Nnu4960
Blog of Cylindrical Roller Bearing
What Is The Bearing Static Load Rating And Dynamic Load Rating?
The three basic parameters that are often used in the design of rolling bearings are: the basic rated dynamic load Cr (radial) or Ca (axial) that meets certain fatigue life requirements; the basic rated static strength Cor (diameter) that meets certain static strength requirements direction) or Coa (axial) and limiting speed No to control bearing wear.How To Improve The Installation Accuracy Of SKF Bearings?
Measure the size of the shaft and the SKF bearing seat hole to determine the matching accuracy of the SKF bearing. The matching requirements are as follows: the inner ring and the shaft adopt an interference fit, and the interference is 0 ~ +4 μm (at light load and high precision, it is 0); the outer ring and the SKF bearing seat hole adopt clearance fit, the clearance amount is 0~+6μm (but when the bearing at the free end uses angular contact ball bearing, the clearance can also be increased); the roundness error of the shaft and the seat hole surface is 2μm Below, the end face parallelism of spacers used in SKF bearings is less than 2 μm, the runout of the inner end of the shaft shoulder to the outer end face is less than 2 μm; the runout of the shoulder of the SKF bearing housing hole to the axis is less than 4 μm; Beat below 4μm.Causes And Prevention And Control Measures Of Freight Car Bearing Seal Cover Falling Off
In most cases, the sealing cover is not caused by one reason, but by the coupling of multiple factors, some of which pop up instantly, and some of which move out little by little. Let's analyze the main reasons that cause the sealing cover to come out:
FAQs of Cylindrical Roller Bearing
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