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 | NNU4144 | |
| Bore diameter | d | 220 mm |
| Outside diameter | D | 370 mm |
| Width | B | 150 mm |
| Basic dynamic load rating | C | 1620 kN |
| Basic static load rating | C0 | 2950 kN |
| Fatigue load limit | Pu | 355 kN |
| Mass | ≈m | 65.2 kg |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 150 °C |
Manufacturer Identity3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 2871780 | |
| Brand | INA | |
| Base Type | NNU4144 |
Product Identity1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Short Description | Cylindrical roller bearing |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 220 mm | |
| Outside Diamater (D) | 370 mm | |
| Total Width (B) | 150 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 1,620,000 N | |
| Basic Static Load Rating, Radial (C0R) | 2,950,000 N | |
| Raceway Diameter Inner Ring (F) | 258 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed For Grease Lubrication (Ng Grea) | 2,410 1/min | |
| Minimum Diameter Shaft Shoulder (Da) | 237 mm | |
| Limiting Speed (Ng Oil) | 2,850 1/min | |
| Operating Temperature Max. (Tmax) | 150 °C | |
| Maximum Diameter Of Housing Shoulder (Da) | 353 mm | |
| Minimum Chamfer Dimension (R1 Min) | 4 mm | |
| Shoulder Diameter Outer Ring (D1) | 321.5 mm | |
| Axial Displacement (S) | 4.9 mm | |
| Maximum Recess Radius (Ra1 Max) | 3 mm | |
| Fatigue Load Limit, Radial (Cur) | 355,000 N |
