Click image to view original image
Cylindrical rollers and raceways are line contact bearings. Load capacity, mainly bear radial load. The rolling element has little friction with the ferrule rib and is suitable for high speed rotation. According to the ferrule with or without ribs, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing is a separable structure of the inner ring and the outer ring
Bearing No. | Boundary dimensions | Basic load rating(kN) | Limiting speeds | Mass | ||||||
mm | Dynamic | Static | rpm | Kg | ||||||
d | D | B | rs min | rs1 min | Cr | Cor | Grease | Oil | ||
N208 | 40 | 80 | 18 | 1.1 | 1.1 | 43.5 | 43 | 9,400 | 11,000 | 0.37 |
N209 | 45 | 85 | 19 | 1.1 | 1.1 | 46 | 47 | 8,400 | 9,900 | 0.423 |
N210 | 50 | 90 | 20 | 1.1 | 1.1 | 48 | 51 | 7,600 | 9,000 | 0.46 |
N211 | 55 | 100 | 21 | 1.5 | 1.1 | 58 | 62.5 | 6,900 | 8,200 | 0.626 |
N212 | 60 | 110 | 22 | 1.5 | 1.5 | 68.5 | 75 | 6,400 | 7,600 | 0.802 |
N213 | 65 | 120 | 23 | 1.5 | 1.5 | 84 | 94.5 | 5,900 | 7,000 | 1 |
N214 | 70 | 125 | 24 | 1.5 | 1.5 | 83.5 | 95 | 5,500 | 6,500 | 1.1 |
N215 | 75 | 130 | 25 | 1.5 | 1.5 | 96.5 | 111 | 5,100 | 6,000 | 1.21 |
N216 | 80 | 140 | 26 | 2 | 2 | 106 | 122 | 4,800 | 5,700 | 1.47 |
N217 | 85 | 150 | 28 | 2 | 2 | 120 | 140 | 4,500 | 5,300 | 1.83 |
N218 | 90 | 160 | 30 | 2 | 2 | 152 | 178 | 4,300 | 5,000 | 2.25 |
N219 | 95 | 170 | 32 | 2.1 | 2.1 | 166 | 195 | 4,000 | 4,700 | 2.72 |
N220 | 100 | 180 | 34 | 2.1 | 2.1 | 183 | 217 | 3,800 | 4,500 | 3.26 |
N221 | 105 | 190 | 36 | 2.1 | 2.1 | 201 | 241 | 3,600 | 4,300 | 3.87 |
N222 | 110 | 200 | 38 | 2.1 | 2.1 | 240 | 290 | 3,400 | 4,000 | 4.54 |
N224 | 120 | 215 | 40 | 2.1 | 2.1 | 260 | 320 | 3,200 | 3,700 | 5.46 |
N226 | 130 | 230 | 40 | 3 | 3 | 270 | 340 | 2,900 | 3,400 | 6.17 |
N228 | 140 | 250 | 42 | 3 | 3 | 310 | 400 | 2,700 | 3,100 | 7.72 |
N230 | 150 | 270 | 45 | 3 | 3 | 345 | 435 | 2,500 | 2,900 | 9.72 |
