The machined ring of this bearing type contains needle rollers and a cage. The outer ring and the needle rollers are inseparable from each other by means of double-side ribs on the outer ring or side plates. Because of its machined (solid) outer ring enabling to make it more rigid and upgrade the bearing accuracy, this Machined Ring Needle Roller Bearings bearing type is suitable for an application requiring high speed, high load and high running accuracy. These machined ring needle roller bearings are available in two types one without inner ring and another with inner ring considering the case of using a shaft as the direct raceway surface without using inner ring.
NTN Needle Roller Bearing, Machined-Ring, Series: RNA49, 180 mm Bore Dia, 220 mm Outside Dia, 1 Row, 60 mm W, Open Closure, 650000 N, High Carbon Chrome Steel Bearing, Steel Cage, 1500 rpm Grease/2200 rpm Oil Maximum, -40 to 120 deg C
| Bearing Material | : | High Carbon Chrome Steel |
| Bore Diameter | : | 180 mm |
| Cage Material | : | Steel |
| Closure Type | : | Open |
| Load Capacity | : | 650000 N |
| Maximum Speed | : | 1500 rpm Grease/2200 rpm Oil |
| Number of Rows | : | 1 |
| Outside Diameter | : | 220 mm |
| Series | : | RNA49 |
| Temperature Rating | : | -40 to 120 deg C |
| Type | : | Machined-Ring |
| Width | : | 60 mm |
- Greater load-bearing capacity in a more compact design
- Low inertial force and high rigidity
- Needle roller bearings are suitable for applications with oscillatory movement
- High permissible speeds
- ISO class 0 tolerance rating
- 270000 N dynamic/650000 N static
- Without inner ring
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