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 | 3904 | |
| Bore diameter | d | 20 mm |
| Outside diameter | D | 37 mm |
| Width | B | 13 mm |
| Basic dynamic load rating | C | 9.1 kN |
| Basic static load rating | C0 | 6.8 kN |
| Fatigue load limit | Pu | 0.355 kN |
| Reference speed | nref | 12100 r/min |
| Limiting speed | nG | 15000 r/min |
| Mass | ≈m | 0.055 kg |
| Minimum operating temperature | Tmin | -20 °C |
| Maximum operating temperature | Tmax | 100 °C |
Manufacturer Identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 361151 | |
| Brand | INA | |
| Base Type | 3904 | |
| Old Designation | ["3904 2Z"] | |
| X Life Marking | n.r. |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Angular contact ball bearing 39..-B-2RZ-TVH, double row, shields, plastic cage | |
| Short Description | Angular contact ball bearing |
Technical Data20 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 20 mm | |
| Outside Diameter (D) | 37 mm | |
| Width (B) | 13 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 9,100 N | |
| Basic Static Load Rating, Radial (C0R) | 6,800 N | |
| Operating Temperature Min. (Tmin) | -20 °C | |
| Limiting Speed (Ng) | 15,000 1/min | |
| Operating Temperature Max. (Tmax) | 100 °C | |
| Reference Speed (Nϑr) | 12,100 1/min | |
| Caliber Diameter Outer Ring (D2) | 33.45 mm | |
| Fatigue Load Limit, Radial (Cur) | 355 N | |
| Minimum Diameter Shaft Shoulder (Da Min) | 23.2 mm | |
| Shoulder Diameter Inner Ring (D1) | 27.08 mm | |
| Maximum Diameter Of Housing Shoulder (Da Max) | 33.8 mm | |
| Minimum Chamfer Dimension (Rmin) | 0.6 mm | |
| Caliber Diameter Inner Ring (D1) | 24.6 mm | |
| Maximum Fillet Radius (Ra Max) | 0.6 mm | |
| Shoulder Diameter Outer Ring (D1) | 32.85 mm | |
| Contact Angle (Α) | 25 ° | |
| Distance Between The Apexes Of The Pressure Cones (A) | 18.8 mm |