Technical Specifications
Product Overview
Needle Roller Bearings Without Inner Ring
These needle roller bearings are engineered for applications where space is at a premium and a hardened, ground shaft can function as the inner raceway. Featuring a machined outer ring, needle roller, and cage assembly, they provide high radial load-carrying capacity in a compact form factor. The design includes a lubrication groove and hole in the outer ring to ensure reliable performance and extended service life in demanding industrial environments.
Technical Specifications
Available Series
NKNKINKSRNA49RNA69
- Components
- Machined outer ringNeedle rollerCageLubrication grooveLubrication hole
Performance Data
Key Performance Metrics
| Designation | Dynamic Load (N) | Static Load (N) | Limiting Speed (rpm) |
|---|---|---|---|
| NA4900 | 8,006 | 9,000 | 23,700 |
| NA4901 | 5,047 | 6,352 | 20,000 |
| NA4902 | 6,447 | 9,053 | 18,800 |
| NA4903 | 7,010 | 10,010 | 17,000 |
| NK10/12 | 4,750 | 5,350 | 23,500 |
| NK12/12 | 6,050 | 6,400 | 21,640 |
