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 | NKXR25 | |
| Bore diameter | d | 25 mm |
| Outside diameter | D | 37 mm |
| Width | B | 30 mm |
| Basic dynamic load rating | C | 21.3 kN |
| Basic static load rating | C0 | 30.5 kN |
| Fatigue load limit | Pu | 5.4 kN |
| Reference speed | nref | 3400 r/min |
| Limiting speed | nG | 8500 r/min |
| Mass | ≈m | 0.11917 kg |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 120 °C |
Manufacturer Identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 397512 | |
| Brand | INA | |
| Base Type | NKXR25 | |
| Old Designation | ["NKXR25"] | |
| X Life Marking | XL |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Needle roller/axial cylindrical roller bearings NKXR, axial component, single direction, to DIN 5429, without end cap, for oil lubrication | |
| Short Description | Needle roller/axial cylindrical roller bearing |
Technical Data20 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (Fw) | 25 mm | |
| Outside Diamater (D) | 37 mm | |
| Height (C) | 30 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 21,300 N | |
| Basic Static Load Rating, Radial (C0R) | 30,500 N | |
| Basic Dynamic Load Rating, Axial (Ca) | 33,500 N | |
| Basic Static Load Rating, Axial (C0A) | 76,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Limiting Speed (Limiting Spe) | 8,500 1/min | |
| Reference Speed (Nϑr) | 3,400 1/min | |
| Fatigue Load Limit, Axial (Cua) | 7,200 N | |
| Maximum Outerside Diameter Flange (D1 Max) | 42.1 mm | |
| Maximum Recess Radius (Ra Max) | 0.6 mm | |
| Mounting Dimension Shaft Shoulder (Da) | 37.7 mm | |
| Distance To Lubrication Hole (C2) | 9.5 mm | |
| Width Of The Axial Brearing Component (C1) | 11 mm | |
| Bore Diameter Of Shaft Washer (Dw) | 25 mm | |
| Minimum Chamfer Dimension (Rmin) | 0.6 mm | |
| Fatigue Load Limit, Radial (Cur) | 5,400 N |
