RNA4900
The RNA4900 bearing is a Needle roller bearing with an inner diameter of 14 mm , an outer diameter of 22 mm, a width of 13 mm. It typically uses P0 P6 P5 P4 P2 grade precision tolerances and RS 2RS type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
1.The bearing must be used with a hardened inner ring, or a hardened shaft.
2.Some sizes are available with either a single seal or two seals.
| Attributes | Values |
| Bearing Type | Single Row, Heavy Duty |
| Outer Dia (D) | 22.0000 |
| Width (B) | 13.0000 |
| Dynamic Load Rating (Cr) | 8500 |
| Static Load Rating (Cor) | 9200 |
| Max Speed (Oil) (X1000 RPM) | 25000 |
| Shaft (Fw) | 14.000 |
| Weight (g) | 16.50 |
| Material | 52100 Chrome steel, or equivalent |
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 0.63μm. 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.
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