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 |
|---|---|---|
| Series | K7X9X7 | |
| Bore diameter | d | 7 mm |
| Outside diameter | D | 9 mm |
| Width | B | 7 mm |
| Basic dynamic load rating | C | 1.68 kN |
| Basic static load rating | C0 | 1.7 kN |
| Fatigue load limit | Pu | 0.207 kN |
| Reference speed | nref | 40500 r/min |
| Limiting speed | nG | 35500 r/min |
| Minimum operating temperature | Tmin | -20 °C |
| Maximum operating temperature | Tmax | 120 °C |
Manufacturer Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 379974 | |
| Brand | INA | |
| Base Type | K7X9X7 | |
| X Life Marking | n.r. |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Needle roller cage assembly K..-TV, single row | |
| Short Description | Needle roller cage assembly |
Technical Data10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Inner Diameter Of Needle Roller Complement (Fw) | 7 mm | |
| Outside Diameter Of Needle Roller Complement (Ew) | 9 mm | |
| Width (Bc) | 7 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 1,680 N | |
| Basic Static Load Rating, Radial (C0R) | 1,700 N | |
| Operating Temperature Min. (Tmin) | -20 °C | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Limiting Speed (Limiting Spe) | 35,500 1/min | |
| Reference Speed (Nϑr) | 40,500 1/min | |
| Fatigue Load Limit, Radial (Cur) | 207 N |