Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications12 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | NKIB5904 | |
| Bore diameter | d | 20 mm |
| Outside diameter | D | 37 mm |
| Width | B | 25 mm |
| Basic dynamic load rating | C | 23.7 kN |
| Basic static load rating | C0 | 25.5 kN |
| Fatigue load limit | Pu | 4.7 kN |
| Reference speed | nref | 14000 r/min |
| Limiting speed | nG | 17200 r/min |
| Mass | ≈m | 0.107 kg |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 120 °C |
Manufacturer Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 397369 | |
| Brand | INA | |
| Base Type | NKIB5904 | |
| X Life Marking | XL |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Needle roller/angular contact ball bearings NKIB, double direction axial component | |
| Short Description | Needle roller/angular contact ball bearing |
Technical Data16 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 20 mm | |
| Outside Diamater (D) | 37 mm | |
| Total Width (B) | 25 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 23,700 N | |
| Basic Static Load Rating, Radial (C0R) | 25,500 N | |
| Basic Dynamic Load Rating, Axial (Ca) | 4,900 N | |
| Basic Static Load Rating, Axial (C0A) | 7,400 N | |
| Raceway Diameter Inner Ring (F) | 25 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Limiting Speed (Limiting Spe) | 17,200 1/min | |
| Reference Speed (Nϑr) | 14,000 1/min | |
| Fatigue Load Limit, Axial (Cua) | 335 N | |
| Width, Outer Ring (C) | 23 mm | |
| Minimum Chamfer Dimension (Rmin) | 0.3 mm | |
| Fatigue Load Limit, Radial (Cur) | 4,700 N |
