 
            - 1.38 in Inner Diameter
- 2.17 in Outer Diameter
- 0.79 in Overall Width
features
- Without ribs
- Metric series
- Ground raceways
| Outer Ring Width | 0.79 in, 20 mm | 
| Overall Width | 0.79 in, 20 mm | 
| Bearing Material | High Carbon Chrome Steel | 
| No. of Rows | 1 | 
| Static Load Rating | 51.7 kN | 
| Radial Internal Clearance | Normal | 
| Cage Material | Steel | 
| Radial Internal Clearance Specification | Normal Clearance | 
| Limiting Speed - Oil | 10000 rpm | 
| I.D. | 35 mm | 
| Self Aligning | No | 
| Bearing Design | Removable Inner Ring – Straight | 
| Rolling Element | Needle Roller | 
| Capacity | Standard Capacity | 
| Component | Assembly | 
| Oil Hole | w/Oil Hole | 
| Operating Temperature [Max] | 230 ˚F | 
| Relubrication Feature | No | 
| Inner Ring O.D. | 42 mm | 
| Bore Type | Round Bore, Metric Type | 
| O.D. | 55 mm | 
| Cage Type | Riveted | 
| Precision Class | ABEC 1 | 
| Relubricatable | No | 
| Speed (Max) Oil | 10000 rpm | 
| Operating Temperature [Min] | -22 ˚F | 
| Tolerance | Iso Class 0 (RBEC 1) | 
| Lubricant | Rust Preventative | 
| Dynamic Load Rating | 32.8 kN | 
| End Type | Open End | 
| Speed (Max) Grease | 6700 rpm | 
| O.D. Type | Straight | 
| Fillet Radius | 0.6 in | 
| Precision Ground | Yes | 
| Origin | Needle Radial | 
| Enclosure | Open | 
| Series | NA4900 | 
| Weight | 0.41 LB | 
| EAN or UPC | 605790200816 | 
 
        

