Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 12 mm |
| Outside diameter | D | 28 mm |
| Width | B | 12 mm |
| Basic dynamic load rating | C | 11.5 kN |
| Basic static load rating | C0 | 12.5 kN |
| Fatigue load limit | Pu | 1.81 kN |
| Reference speed | nref | 14300 r/min |
| Limiting speed | nG | 22900 r/min |
| Mass | ≈m | 0.03872 kg |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 120 °C |
Manufacturer Identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 393290 | |
| Brand | INA | |
| Base Type | NAO12X28X12 | |
| Old Designation | ["NAO 12X28X12"] | |
| X Life Marking | n.r. |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Radial roller bearing NAO | |
| Short Description | Radial roller bearing |
Technical Data20 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Outside Diamater (D) | 28 mm | |
| Total Width (B) | 12 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 11,500 N | |
| Basic Static Load Rating, Radial (C0R) | 12,500 N | |
| Shoulder Diameter Axial Guidance Nk/Shaft (Db) | 21.6 mm | |
| Raceway Diameter Inner Ring (F) | 16 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed For Grease Lubrication (Ng Grea) | 13,800 1/min | |
| Shoulder Diameter Outer Ring (Da) | 22.3 mm | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Limiting Speed (Limiting Spe) | 22,900 1/min | |
| Reference Speed (Nϑr) | 14,300 1/min | |
| Maximum Recess Radius (Ra Max) | 0.3 mm | |
| Axial Displacement (S) | 0.5 mm | |
| Bore Diameter (D) | 12 mm | |
| Shoulder Diameter Axial Guidance Nk/Housing (Db) | 16.4 mm | |
| Minimum Chamfer Dimension (Rmin) | 0.3 mm | |
| Raceway Diameter Outer Ring (E) | 22 mm | |
| Mounting Dimension (Da) | 15.7 mm | |
| Fatigue Load Limit, Radial (Cur) | 1,810 N |
