Alignment needle roller bearings are self-aligning and offer a compact solution in applications where less space is available. Owing to their large number of rollers, they have a high load carrying capacity. Their internal design, where a convex outer ring meets two concave seating rings encased in a drawn sleeve, enables the bearings to compensate for initial errors of alignment. Bearings with an inner ring are used for applications where the shaft cannot be hardened and ground.
- High radial load carrying capacity
- Accommodate static initial misalignment
- Low cross-sectional height
Alignment Needle Roller Bearings with an Inner Ring
| ID | OD | Width | RPM | Limit Speed | Model | Variation |
|---|---|---|---|---|---|---|
| 12 | 28 | 12 | 24,000 | 28,000 | PNA 12/28 | |
| 15 | 32 | 16 | 22,000 | 24,000 | PNA 15/32 | |
| 17 | 35 | 16 | 19,000 | 22,000 | PNA 17/35 | |
| 20 | 42 | 20 | 16,000 | 18,000 | PNA 20/42 | |
| 22 | 44 | 20 | 14,000 | 16,000 | PNA 22/44 | |
| 25 | 47 | 20 | 13,000 | 15,000 | PNA 25/47 | |
| 30 | 52 | 20 | 11,000 | 13,000 | PNA 30/52 | |
| 35 | 55 | 20 | 10,000 | 11,000 | PNA 35/55 | |
| 40 | 62 | 20 | 9,000 | 10,000 | PNA 40/62 |