Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | K39412 | |
| Outside diameter | D | 104.775 mm |
| Mass | ≈m | 0.18 kg |
| Precision class | ABMA4 — Class 4 (ANSI/ABMA 19.2:2013) | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 200 °C |
Product characteristics5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Tolerance class | ABMA4 | Class 4 (ANSI/ABMA 19.2:2013) |
| Heat treatment | W215A | Bainitic hardened |
| Internal design | Standard | |
| Quality level | Standard | |
| Number of rows | 1 | Single-row design |
Main Dimensions & Performance Data3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Outside diameter | D | 104.775 mm4.125 in |
| Width, outer ring | C | 15.875 mm0.625 in |
| Mass | ≈m | 0.18 kg0.397 lbs |
Mounting dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter of housing shoulder | Da min | 96 mm3.78 in |
| Minimum diameter of housing shoulder | Db min | 100 mm3.937 in |
| Maximum fillet radius of housing | rb max | 2 mm0.079 in |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension of outer ring back face | r3, 4 min | 2 mm0.079 in |
| Inside diameter of outer ring back face | E | 90.948 mm3.581 in |
| Contact angle | α | 14.5 ° |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 200 °C392 °F |
Capabilities & suitability5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial load capacity | Yes | |
| Axial load capacity in one direction | Yes | |
| Suitable for grease lubrication | Yes | |
| Suitable for oil lubrication | Yes | |
| Unsealed design | Yes |
Manufacturer Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 2441991 | |
| Brand | FAG | |
| Base Type | K39412 | |
| Base product | 2305BA0303 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Tapered roller bearings without inner subunit (Cup) K-Series, in inch sizes | |
| Short Description | Outer ring |
Technical Data10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Outside Diameter (D) | 104.775 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Operating Temperature Max. (Tmax) | 200 °C | |
| Contact Angle (Α) | 14.5 ° | |
| Maximum Fillet Radius Of Housing (Rb Max) | 2 mm | |
| Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M) | 2 mm | |
| Minimum Diameter Of Housing Shoulder (Da Min) | 96 mm | |
| Minimum Diameter Of Housing Shoulder (Db Min) | 100 mm | |
| Width, Outer Ring (C) | 15.875 mm | |
| Inside Diameter Of Outer Ring Back Face (E) | 486 mm |