| Aligning needle roller bearing is punched by alloy plate. It has thin-walled outer ring and circle outer surface. This kind of bearing be used widely for its aligning function.
Mainly characteristic ►It can instead some aligning roller bearing ►Small radial space ►Low cost, easy to assemble ►Bear large load
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| Ring-2 | Ring-1 Cage | Roller | |
| Material | GCr15 chrome steel | SPCC or 20# Steel | GCr15 chrome steel |
| Process | Lathing Grinding | Lathing | Grinding |
| Heat treatment | Quenching | Carburization Black | Quenching HRC60-64 |
| Model | Structure instruction |
| RPNA | Without inner ring |
| PNA | With inner ring |
| Model | |||||
| Shaft | Mass | Dimensions | |||
| mm | Without IR | g | Fw | D | C |
| 15 | RPNA15/28 | 32 | 15 | 28 | 12 |
| 18 | RPNA18/32 | 52 | 18 | 32 | 16 |
| 20 | RPNA20/35 | 62 | 20 | 35 | 16 |
| 25 | RPNA25/42 | 109 | 25 | 42 | 20 |
| 28 | RPNA28/44 | 112 | 28 | 44 | 20 |
| 30 | RPNA30/47 | 125 | 30 | 47 | 20 |
| 35 | RPNA35/52 | 131 | 35 | 52 | 20 |
| 40 | RPNA40/55 | 141 | 40 | 55 | 20 |
| 45 | RPNA45/62 | 176 | 45 | 62 | 20 |
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