INA NKIA/NKIB5911-NA Combined Needle Roller/Angular Contact Ball Bearing
INA NKIA/NKIB5911-NA Combined Needle Roller / Angular Contact Ball Bearing
The INA NKIA/NKIB5911-NA combined bearing integrates a radial needle roller bearing with an axial angular contact ball bearing, providing high radial load capacity together with reliable axial load support in both directions.
Manufacturer: INA
Type: Combined Needle Roller / Angular Contact Ball Bearing
Model: NKIA/NKIB5911-NA
Ideal for applications requiring compact design with simultaneous high radial and axial load capacity such as gearboxes, machine tools, and heavy-duty industrial equipment.
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| Bore Diameter (d) | 55 mm |
| Outer Diameter (D) | 80 mm |
| Width (B) | 38 mm |
| Basic Dynamic Load Rating, Radial (Cr) | 65,000 N |
| Basic Static Load Rating, Radial (C0r) | 100,000 N |
| Basic Dynamic Load Rating, Axial | 12,100 N |
| Basic Static Load Rating, Axial | 29,500 N |
| Fatigue Load Limit, Radial | 17,600 N |
| Fatigue Load Limit, Axial | 1,340 N |
| Reference Speed | 6,000 1/min |
| Limiting Speed | 7,300 1/min |
