Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | NA4905 | |
| Bore diameter | d | 25 mm |
| Outside diameter | D | 42 mm |
| Width | B | 18 mm |
| Basic dynamic load rating | C | 21.8 kN |
| Basic static load rating | C0 | 24.2 kN |
| Fatigue load limit | Pu | 4.65 kN |
| Mass | ≈m | 0.0913 kg |
| Minimum operating temperature | Tmin | -20 °C |
| Maximum operating temperature | Tmax | 100 °C |
Manufacturer Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 383271 | |
| Brand | INA | |
| Base Type | NA4905 | |
| X Life Marking | XL |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Needle roller bearings NA49..-RSR, dimension series 49, lip seal on one side | |
| Short Description | Needle roller bearing |
Technical Data12 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 25 mm | |
| Outside Diamater (D) | 42 mm | |
| Width Inner Ring (B) | 18 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 21,800 N | |
| Basic Static Load Rating, Radial (C0R) | 24,200 N | |
| Raceway Diameter Inner Ring (F) | 30 mm | |
| Operating Temperature Min. (Tmin) | -20 °C | |
| Limiting Speed For Grease Lubrication (Ng Grea) | 8,600 1/min | |
| Operating Temperature Max. (Tmax) | 100 °C | |
| Width, Outer Ring (C) | 17 mm | |
| Minimum Chamfer Dimension (Rmin) | 0.3 mm | |
| Fatigue Load Limit, Radial (Cur) | 4,650 N |
