Needle Roller Bearing Without Inner Ring
Needle roller bearings without an inner ring feature a machined outer ring, needle rollers, and a cage. These bearings are designed for applications where hardened and ground shafts serve as the inner raceway.
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 |
