Needle roller bearings with thrust roller bearing is combinations of a radial bearing and a thrust bearing.
Needle roller bearings with thrust roller bearing is used as radial bearings and thrust ball bearings or thrust roller bearings are used as thrust bearings. They are compact and very economical, and can be subjected to radial loads and axial loads simultaneously.
They are widely used for machine tools, textile machinery, and industrial machinery.
Needle Roller Bearings with Thrust Roller Bearing
In this series, needle roller bearings are combined with thrust roller bearings to receive thrust loads.
Their axial load ratings are greater than those of bearings that are combined with thrust ball bearings. Also, elastic deformation of the rolling contact surfaces under load is minimal. Furthermore, the thrust bearing section is finished to high accuracy, and therefore high rotational accuracy is obtained in the case of both vertical and horizontal shafts.
Like the needle roller bearings with thrust ball bearing, this series also includes bearings with a dust cover and bearings with an inner ring.
COMBINED TYPE NEEDLE ROLLER BEARINGS
Needle Roller Bearings with Thrust Ball Bearing
Needle Roller Bearings with Thrust Roller Bearing
Without Inner Ring
Without Inner Ring
| Shaft Dia. | Part Number | Dimension | Load Rating | Limiting Speed | Weight(g) | ||||||||||||||||||||||
| Without retain cap | With retain cap | Radial Direction | Axial Direction | Without retain cap | With retain cap | ||||||||||||||||||||||
| Fw | D | D1Max. | D2Max. | C | C1 | C2 | dw | r min | |||||||||||||||||||
| Cr | Cor | Cr | Cor | ||||||||||||||||||||||||
| mm | mm | N | RPM | ||||||||||||||||||||||||
| 10 | NKX 10TV | NKX 10 ZTV | 10 | 19 | 24.1 | 25.2 | 23 | 9 | 6.5 | 10 | 0.3 | 7000 | 7800 | 10000 | 14000 | 12400 | 34 | 36 | |||||||||
| 12 | NKX 12 | NKX 12 Z | 12 | 21 | 26.1 | 27.2 | 23 | 9 | 6.5 | 12 | 0.3 | 10100 | 11000 | 10300 | 15400 | 10900 | 38 | 40 | |||||||||
| 15 | NKX 15 | NKX 15 Z | 15 | 24 | 28.1 | 29.2 | 23 | 9 | 6.5 | 15 | 0.3 | 12100 | 12700 | 10500 | 16800 | 9200 | 44 | 47 | |||||||||
| 17 | NKX 17 | NKX 17 Z | 17 | 26 | 30.1 | 31.2 | 25 | 9 | 8 | 17 | 0.3 | 13500 | 15000 | 10800 | 18200 | 8400 | 53 | 55 | |||||||||
| 20 | NKX 20 | NKX 20 Z | 20 | 30 | 35.1 | 36.2 | 30 | 10 | 10.5 | 20 | 0.3 | 18600 | 23800 | 14300 | 24700 | 7200 | 83 | 90 | |||||||||
| 25 | NKX 25 | NKX 25 Z | 25 | 37 | 42.1 | 43.2 | 30 | 11 | 9.5 | 25 | 0.6 | 21300 | 30500 | 19600 | 37500 | 5800 | 125 | 132 | |||||||||
| 30 | NKX 30 | NKX 30 Z | 30 | 42 | 47.1 | 48.2 | 30 | 11 | 9.5 | 30 | 0.6 | 25500 | 36000 | 20400 | 42000 | 5000 | 141 | 148 | |||||||||
| 35 | NKX 35 | NKX 35 Z | 35 | 47 | 52.1 | 53.2 | 30 | 12 | 9 | 35 | 0.6 | 27500 | 41500 | 21200 | 47000 | 4400 | 161 | 168 | |||||||||
| 40 | NKX 40 | NKX 40 Z | 40 | 52 | 60.1 | 61.2 | 32 | 13 | 10 | 40 | 0.6 | 29500 | 47000 | 27000 | 63000 | 3900 | 200 | 208 | |||||||||
| 45 | NKX 45 | NKX 45 Z | 45 | 58 | 65.2 | 66.5 | 32 | 14 | 9 | 45 | 0.6 | 31000 | 53000 | 28000 | 69000 | 3500 | 252 | 265 | |||||||||
| 50 | NKX 50 | NKX 50 Z | 50 | 62 | 70.2 | 71.5 | 35 | 14 | 10 | 50 | 0.6 | 43000 | 74000 | 29000 | 75000 | 3200 | 280 | 300 | |||||||||
| 60 | NKX 60 | NKX 60 Z | 60 | 72 | 85.2 | 86.5 | 40 | 17 | 12 | 60 | 1 | 47500 | 90000 | 41500 | 113000 | 2750 | 360 | 380 | |||||||||
| 70 | NKX 70 | NKX 70 Z | 70 | 85 | 95.2 | 96.5 | 40 | 18 | 11 | 70 | 1 | 50000 | 92000 | 43000 | 127000 | 2320 | 500 | 520 | |||||||||
Notes
(1) Minimum allowable value of chamfer dimension r
(2) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 70% of this value is allowable in the NAX series, and a maximum of 25% of this value is allowable in the NBX series.
Remarks
1. The outer ring has an oil groove and an oil hole.
2. Grease is not prepacked. Perform proper lubrication.
1N=0.102kgf=0.2248lbs.
1mm=0.03937inch
COMBINED TYPE NEEDLE ROLLER BEARINGS
Needle Roller Bearings with Thrust Ball Bearing
Needle Roller Bearings with Thrust Roller Bearing
With Inner Ring
With Inner Ring
Notes
(1) Minimum allowable value of chamfer dimension r or r 1
(2) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 70% of this value is allowable in the NAXI series, and a maximum of 25% of this value is allowable in the NBXI series.
Remarks
1. The outer ring has an oil groove and an oil hole.
2. Grease is not prepacked. Perform proper lubrication.
1N=0.102kgf=0.2248lbs.
1mm=0.03937inch
