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 | NAO25X40X17 | |
| Bore diameter | d | 25 mm |
| Outside diameter | D | 40 mm |
| Width | B | 17 mm |
| Basic dynamic load rating | C | 22.1 kN |
| Basic static load rating | C0 | 34 kN |
| Fatigue load limit | Pu | 5.4 kN |
| Reference speed | nref | 8100 r/min |
| Limiting speed | nG | 15100 r/min |
| Mass | ≈m | 0.084112 kg |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 120 °C |
Manufacturer Identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 393308 | |
| Brand | INA | |
| Base Type | NAO25X40X17 | |
| Old Designation | ["NAO25X40X17"] | |
| X Life Marking | XL |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Needle roller bearings NAO, without ribs | |
| Short Description | Needle roller bearing |
Technical Data19 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 25 mm | |
| Outside Diamater (D) | 40 mm | |
| Total Width (B) | 17 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 22,100 N | |
| Basic Static Load Rating, Radial (C0R) | 34,000 N | |
| Shoulder Diameter Axial Guidance Nk/Shaft (Db) | 34.4 mm | |
| Raceway Diameter Inner Ring (F) | 30 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Shoulder Diameter Outer Ring (Da) | 35.5 mm | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Limiting Speed (Limiting Spe) | 15,100 1/min | |
| Reference Speed (Nϑr) | 8,100 1/min | |
| Maximum Recess Radius (Ra Max) | 0.3 mm | |
| Axial Displacement (S) | 0.8 mm | |
| Shoulder Diameter Axial Guidance Nk/Housing (Db) | 30.6 mm | |
| Minimum Chamfer Dimension (Rmin) | 0.3 mm | |
| Raceway Diameter Outer Ring (E) | 35 mm | |
| Mounting Dimension (Da) | 29.5 mm | |
| Fatigue Load Limit, Radial (Cur) | 5,400 N |
