Needle roller bearings are roller bearings with cylindrical rollers that are thin and long relative to their diameter. Such rollers are called needle rollers. Although the cross-sectional area is small, roller bearings still have a high load-bearing capacity due to the fact that the entire surface of the roller carries the load, they are widely used in application with a limited radial installation dimensions.
Needle Roller & Thrust Combine Bearing Number | Dimensions | Basic Load Ratings | Limiting Speed | ||||||||||||||
Fw | D | D1 | D2 | C | C1 | C2 | dw | rsmin. | Radial | Axial | rpm | ||||||
max. | max. | -0.25 | -0.2 | E8 | |||||||||||||
without end cap | with end cap | mm | Dynamic Cr | Static Cor | Dynamic Cr | Static Cor | |||||||||||
weight | weight | ||||||||||||||||
g | g | KN | |||||||||||||||
NKX10TN | 34 | NKX10ZTN | 36 | 10 | 19 | 24.1 | 25.2 | 23 | 9 | 6.5 | 10 | 0.3 | 6.2 | 7.8 | 10 | 14 | 12000 |
NKX12 | 38 | NKX12Z | 40 | 12 | 21 | 26.1 | 27.2 | 23 | 9 | 6.5 | 12 | 0.3 | 9 | 11 | 10.3 | 15.4 | 11000 |
NKX15 | 44 | NKX15Z | 47 | 15 | 24 | 28.1 | 29.2 | 23 | 9 | 6.5 | 15 | 0.3 | 10.7 | 12.7 | 10.5 | 16.8 | 9500 |
NKX17 | 53 | NKX17Z | 55 | 17 | 26 | 30.1 | 31.2 | 25 | 9 | 8 | 17 | 0.3 | 11.9 | 15 | 10.8 | 18.2 | 8500 |
NKX20 | 83 | NKX20Z | 90 | 20 | 30 | 35.1 | 36.2 | 30 | 10 | 10.5 | 20 | 0.3 | 16.4 | 23.8 | 14.3 | 24.7 | 7500 |
NKX25 | 125 | NKX25Z | 132 | 25 | 37 | 42.1 | 43.2 | 30 | 11 | 9.5 | 25 | 0.6 | 18.8 | 30.5 | 19.6 | 37.5 | 6000 |
NKX30 | 141 | NKX30Z | 148 | 30 | 42 | 47.1 | 48.2 | 30 | 11 | 9.5 | 30 | 0.6 | 22.6 | 36 | 20.4 | 42 | 5000 |
NKX35 | 163 | NKX35Z | 168 | 35 | 47 | 52.1 | 53.2 | 30 | 12 | 9 | 35 | 0.6 | 24.3 | 41.5 | 21.2 | 47 | 4600 |
NKX40 | 200 | NKX40Z | 221 | 40 | 52 | 60.1 | 61.2 | 32 | 13 | 10 | 40 | 0.6 | 26 | 47 | 27 | 63 | 4000 |
NKX45 | 252 | NKX45Z | 265 | 45 | 58 | 65.2 | 66.5 | 32 | 14 | 9 | 45 | 0.6 | 27.5 | 53 | 28 | 69 | 3600 |
NKX50 | 280 | NKX50Z | 300 | 50 | 62 | 70.2 | 71.5 | 35 | 14 | 10 | 50 | 0.6 | 38 | 74 | 29 | 75 | 3300 |
NKX60 | 360 | NKX60Z | 380 | 60 | 72 | 85.2 | 86.5 | 40 | 17 | 12 | 60 | 1 | 42 | 90 | 41.5 | 113 | 2800 |
NKX70 | 500 | NKX70Z | 520 | 70 | 85 | 95.2 | 96.5 | 40 | 18 | 11 | 70 | 1 | 44.5 | 92 | 43 |