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 | NNU4188 | |
| Bore diameter | d | 440 mm |
| Outside diameter | D | 720 mm |
| Width | B | 280 mm |
| Basic dynamic load rating | C | 5600 kN |
| Basic static load rating | C0 | 11500 kN |
| Fatigue load limit | Pu | 1030 kN |
| Mass | ≈m | 450 kg |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 150 °C |
Manufacturer Identity3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 2409985 | |
| Brand | INA | |
| Base Type | NNU4188 |
Product Identity1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Short Description | Cylindrical roller bearing |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 440 mm | |
| Outside Diamater (D) | 720 mm | |
| Total Width (B) | 280 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 5,600,000 N | |
| Basic Static Load Rating, Radial (C0R) | 11,500,000 N | |
| Raceway Diameter Inner Ring (F) | 511 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed For Grease Lubrication (Ng Grea) | 1,170 1/min | |
| Minimum Diameter Shaft Shoulder (Da) | 466 mm | |
| Limiting Speed (Ng Oil) | 1,380 1/min | |
| Operating Temperature Max. (Tmax) | 150 °C | |
| Maximum Diameter Of Housing Shoulder (Da) | 694 mm | |
| Minimum Chamfer Dimension (R1 Min) | 6 mm | |
| Shoulder Diameter Outer Ring (D1) | 632 mm | |
| Axial Displacement (S) | 12.9 mm | |
| Maximum Recess Radius (Ra1 Max) | 5 mm | |
| Fatigue Load Limit, Radial (Cur) | 1,030,000 N |
