Detailed description
IKO Roller Bearing 52x68x22mm Needle Roller Bearings RNA 4909
For RNA 4909, is RNA type need roller bearing without inner ring, and has particularly compact radial dimensions require a shaft raceway that is hardened and ground. Thus this type of bearing is most
common apply in engine components, just like rocker arm pivots, pumps, compressors and transmissions, etc.
Now, please see the IKO bearings technical data indicated as follows for reference,
Designation:RNA 4909
Brand: IKO
d:52mm
D:68mm
B:22mm
Mass:0.182 kg
Basic dynamic load rating,73 KN
Basic static load rating,51 KN
Reference speed,4550 r/min
Limited speed,8200 r/min
Type:Needle roller bearing
| Bearings | d (mm) | D (mm) | B (mm) |
| RNA 6912 | 60 | 85 | 45 |
| RNA 6911 | 55 | 80 | 45 |
| RNA 6910 | 50 | 72 | 40 |
| RNA 6909 | 45 | 68 | 40 |
| RNA 6908 | 40 | 62 | 40 |
| RNA 6907 | 35 | 55 | 36 |
| RNA 69/32 | 32 | 52 | 36 |
| NA 6919 | 95 | 130 | 63 |
| NA 6918 | 90 | 125 | 63 |
| NA 6917 | 85 | 120 | 63 |
| NA 6916 | 80 | 110 | 54 |
| NA 6915 | 75 | 105 | 54 |
| NA 6914 | 70 | 100 | 54 |
| NA 6913 | 65 | 90 | 45 |
| NA 6912 | 60 | 85 | 45 |
| NA 6911 | 55 | 80 | 45 |
| NA 6910 | 50 | 72 | 40 |
| NA 6909 | 45 | 68 | 40 |
| NA 6908 | 40 | 62 | 40 |
| NA 6907 | 35 | 55 | 36 |
| NA 69/32 | 32 | 52 | 36 |
| RNA 4928 | 140 | 190 | 50 |
| RNA 4926 | 130 | 180 | 50 |
| RNA 4924 | 120 | 165 | 45 |
| RNA 4922 | 110 | 150 | 40 |
| RNA 4920 | 100 | 140 | 40 |
| RNA 4919 | 95 | 130 | 35 |
| RNA 4918 | 90 | 125 | 35 |
| RNA 4917 | 85 | 120 | 35 |
| RNA 4916 | 80 | 110 | 30 |
| RNA 4915 | 75 | 105 | 30 |
| RNA 4914 | 70 | 100 | 30 |
| RNA 4913 | 65 | 90 | 25 |
| RNA 4912 | 60 | 85 | 25 |
| RNA 4911 | 55 | 80 | 25 |
| RNA 4910 | 50 | 72 | 22 |
| RNA 4909 | 45 | 68 | 22 |
| RNA 4908 | 40 | 62 | 22 |
| RNA 4907 | 35 | 55 | 20 |
| RNA 49/32 | 32 | 52 | 20 |
| RNA 4906 | 30 | 47 | 17 |
| RNA 49/28 | 28 | 45 | 17 |
| RNA 4905 | 25 | 42 | 17 |
| RNA 49/22 | 22 | 39 | 17 |
| RNA 4904 | 20 | 37 | 17 |





