NN and NNU double row cylindrical roller bearings have a low cross section, high load carrying capacity and high stiffness, therefore it is mostly used in machine tool spindle stands. FC, FCD, FCDP four row cylindrical roller bearings with large capacity of radial load, mostly applied in rolling mill and heavy machinery.
Depending on the existence of ribs on their rings, Cylindrical Roller Bearings are classified into the following types:
Bearing No. | Boundary dimensions | Mass | ||
mm | Kg | |||
d | D | B | ≈ | |
NN3006K | 30 | 55 | 19 | 0.192 |
NN3007K | 35 | 62 | 20 | 0.21 |
NN3008K | 40 | 68 | 21 | 0.298 |
NN3009K | 45 | 75 | 23 | 0.4 |
NN3010K | 50 | 80 | 23 | 0.415 |
NN3011K | 55 | 90 | 26 | 0.618 |
NN3012K | 60 | 95 | 26 | 0.668 |
NN3013K | 65 | 100 | 26 | 0.708 |
NN3014K | 70 | 110 | 30 | 1.03 |
NN3015K | 70 | 115 | 30 | 1.08 |
NN3016K/W33 | 80 | 125 | 34 | 1.53 |
NN3017K/W33 | 85 | 130 | 34 | 1.63 |
NN3018K/W33 | 90 | 140 | 37 | 2.12 |
NN3019K/W33 | 95 | 145 | 37 | 2.21 |
NN3020K/W33 | 100 | 150 | 37 | 2.3 |
NN3021K/W33 | 105 | 160 | 41 | 2.95 |
NN3022K/W33 | 110 | 170 | 45 | 3.74 |
NN3024K/W33 | 120 | 180 | 46 | 3.86 |
NN3026K/W33 | 130 | 200 | 52 | 5.76 |
NN3028K/W33 | 140 | 210 | 53 | 6.43 |