The needle roller bearing without inner ring is suitable for the parts of which the radial size is limited.Because of no inner ring, the surface of shaft journal fitted with it is acted directly as rolling surface. It is requested that the surface hardness be no less than HRC60, surface roughness, no more than 0.63um. This kind of bearing does not limit the axial shift of shaft and housing and has high limiting rotational speed.
The inner ring has no shoulder in this bearing. For this purpose, the inner ring, outer ring complete set of needles and cage can be mounted respectively. This bearing does not limit the axial shift of shaft and outer housing. Since the cage separates the needles so as to reduce friction. It can be used for the parts with high rotational speed.
Because of no inner ring, this needle roller bearing is suitable for parts of which the radial size is limited.The surface of shaft journal fitted with it is acted directly as rolling surface. lt is requested that the surface hardness of shaft journal be no less than HRC60 and the surface roughness Ra value, no more than 0.63hm.This kind of bearing does not limit the axial shift of shaft and housing .
Shaft diameter | Model | Boundary Dimensions | Basic load rating | Limiting speed | ||||
FW | D | C | rS | dynamic | static | oil | ||
C | Co | |||||||
mm | mm | Min. | N | rpm | ||||
5 | +NK 5/10 TN | 5 | 10 | 10 | 0.15 | 2350 | 1920 | 39000 |
+NK 5/12 TN | 5 | 10 | 12 | 0.15 | 3000 | 2650 | 39000 | |
6 | +NK 6/10 TN | 6 | 12 | 10 | 0.15 | 2600 | 2280 | 37000 |
+NK 6/12 TN | 6 | 12 | 12 | 0.15 | 3350 | 3150 | 37000 | |
7 | +NK 7/10 TN | 7 | 14 | 10 | 0.3 | 2850 | 2650 | 34000 |
+NK 7/12 TN | 7 | 14 | 12 | 0.3 | 3650 | 3600 | 34000 | |
8 | +NK 8/12 TN | 8 | 15 | 12 | 0.3 | 3950 | 4100 | 32000 |
+NK 8/16 TN | 8 | 15 | 16 | 0.3 | 5100 | 5800 | 32000 | |
+NKS 8 TN | 8 | 16 | 13 | 0.3 | 5000 | 4700 | 32000 | |
9 | +NK 9/12 TN | 9 | 16 | 12 | 0.3 | 4500 | 5000 | 31000 |
+NK 9/16 TN | 9 | 16 | 16 | 0.3 | 5900 | 7100 | 31000 | |
10 | +NK 10/12 TN | 10 | 17 | 12 | 0.3 | 4750 | 5500 | 29000 |
+NK 10/16 TN | 10 | 17 | 16 | 0.3 | 6200 | 7800 | 29000 | |
+NKS 10 TN | 10 | 19 | 13 | 0.3 | 5800 | 6000 | 29000 | |
12 | NK 12/12 | 12 | 19 | 12 | 0.3 | 6400 | 7100 | 27000 |
NK 12/16 | 12 | 19 | 16 | 0.3 | 9000 | 11000 | 27000 | |
+NKS 12 TN | 12 | 22 | 16 | 0.6 | 9600 | 10400 | 26000 | |
14 | NK 14/16 | 14 | 22 | 16 | 0.3 | 10100 | 11500 | 25000 |
NK 14/20 | 14 | 22 | 20 | 0.3 | 12800 | 15600 | 25000 | |
+NKS 14 | 14 | 25 | 16 | 0.6 | 14400 | 13800 | 24000 | |
RNA 4900 | 14 | 22 | 13 | 0.3 | 8500 | 9200 | 25000 | |
15 | NK 15/16 | 15 | 23 | 16 | 0.3 | 10700 | 12700 | 24000 |
NK 15/20 | 15 | 23 | 20 | 0.3 | 13600 | 17200 | 24000 | |
+NKS 15 | 15 | 26 | 16 | 0.6 | 14400 | 14000 | 23000 | |
16 | NK 16/16 | 16 | 24 | 16 | 0.3 | 11300 | 13900 | 23000 |
NK 16/20 | 16 | 24 | 20 | 0.3 | 14400 | 18800 | 23000 | |
+NKS 16 | 16 | 28 | 16 | 0.6 | 15700 | 15800 | 22000 | |
RNA 4901 | 16 | 24 | 13 | 0.3 | 9400 | 10900 | 23000 | |
RNA 6901 | 16 | 24 | 22 | 0.3 | 16000 | 21600 | 23000 | |
17 | NK 17/16 | 17 | 25 | 16 | 0.3 | 11900 | 15000 | 23000 |
NK 17/20 | 17 | 25 | 20 | 0.3 | 15100 | 20400 | 23000 | |
18 | NK 18/16 | 18 | 26 | 16 | 0.3 | 12500 | 16200 | 22000 |
NK 18/20 | 18 | 26 | 20 | 0.3 | 15800 | 22000 | 22000 | |
+NKS 18 | 18 | 30 | 16 | 0.6 | 16800 | 17700 | 21000 | |
19 | NK 19/16 | 19 | 27 | 16 | 0.3 | 13000 | 17400 | 22000 |
NK 19/20 | 19 | 27 | 20 | 0.3 | 16500 | 23600 | 22000 | |
20 | NK20/16 | 20 | 28 | 16 | 0.3 | 13000 | 17500 | 21000 |
NK20/20 | 20 | 28 | 20 | 0.3 | 16400 | 23800 | 21000 | |
NKS 20 | 20 | 32 | 20 | 0.6 | 23000 | 25000 | 20000 | |
RNA4902 | 20 | 28 | 13 | 0.3 | 10600 | 13600 | 21000 | |
RNA6902 | 20 | 28 | 23 | 0.3 | 17300 | 25500 | 21000 | |
21 | NK21/16 | 21 | 29 | 16 | 0.3 | 13500 | 18700 | 21000 |
NK21/20 | 21 | 29 | 20 | 0.3 | 17100 | 25500 | 21000 | |
22 | NK22/16 | 22 | 30 | 16 | 0.3 | 14000 | 19900 | 20000 |
NK22/20 | 22 | 30 | 20 | 0.3 | 17700 | 27000 | 20000 | |
NKS 22 | 22 | 35 | 20 | 0.6 | 24500 | 28000 | 18000 | |
RNA4903 | 22 | 30 | 13 | 0.3 | 11000 | 14600 | 20000 | |
RNA6903 | 22 | 30 | 23 | 0.3 | 18600 | 29000 | 20000 | |
24 | NK24/16 | 24 | 32 | 16 | 0.3 | 15000 | 22300 | 18000 |
NK24/20 | 24 | 32 | 20 | 0.3 | 19000 | 30500 | 18000 | |
NKS24 | 24 | 34 | 20 | 0.6 | 26000 | 31000 | 17000 | |
25 | NK25/16 | 25 | 33 | 16 | 0.3 | 14900 | 22400 | 18000 |
NK25/20 | 25 | 33 | 20 | 0.3 | 18800 | 30500 | 18000 | |
NKS 25 | 25 | 38 | 20 | 0.6 | 27500 | 33500 | 17000 | |
RNA4904 | 25 | 37 | 17 | 0.3 | 21000 | 25500 | 17000 | |
RNA6904 | 25 | 37 | 30 | 0.3 | 36000 | 51000 | 17000 | |
26 | NK26/16 | 26 | 34 | 16 | 0.3 | 15300 | 23600 | 17000 |
NK26/20 | 26 | 34 | 20 | 0.3 | 19400 | 32000 | 17000 | |
28 | NK28/20 | 28 | 37 | 20 | 0.3 | 22000 | 34000 | 16000 |
and so on.
Our Needle Roller Bearing Catalogue
Cylindrical Roller Bearing
Auto Parts
Automobile Bearings
Bearing Inner Ring
Clutch Bearing
Combined Needle Roller Bearing
Combined Needle Roller Bearing With The Inner Ring
Curve Roller Bearings
Cylindrical Roller Bearings With Snap Ring
Cylindrical Roller Bearings With Snap Ring Groores
Drawn Cup Needle Roller Bearing With Retainer
Drawn Cup Needle Roller Bearing With Ring
Drawn Cup Needle Roller Bearing With Seal Ring
Drawn Cup Needle Roller Clutch
Drawn Cup Full Complement Needle Roller Bearings
Drawn Cup Needle Roller Bearing
Drawn Cup Needle Roller Clutch Assembly
Full Complement Cylindrical Roller Bearings
Full Coplement Needle Roller Bearing With Or Without Inner Ring
Heavy Duty Bearing
Needle Bearing Inner Ring
Needle Bearing Manufacturer
Needle Roller And Cage Assemblies
Needle Roller Bearing
Needle Roller Bearing Without Inner Ring
Needle Roller Without Shoulder And Inner Ring
Needle Roller Without Shoulder And With Inner Ring
No Collar Slab Roller And Cage Assemblies
Non-Standard Bearings
One Way Clutch
One-Way Needle Roller Bearing
Overrunning Clutch
Radial Needle Roller And Cage Assemblies
Rod-Use Needle Roller And Cage Assemblies
Roller Pins
Rollering Bearings
Seal Ring Needle Roller Bearing With Inner Ring Or Without Inner Ring
Sealed Needle Roller Bearings
Seat Ring
Self-Aligning Needle Bearing
Shaft Ring
Solid Collar Needle Roller Bearing
Sprag Type One-Way Clutch
Supporting Roller Bearings
Thrust Ball Bearing With Flat Seat
Thrust Cylindrical Roller And Cage Assemblies Seat Ring Shaft Ring
Thrust Needle Roller Bearings
Thrust Washer etc.