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 | K28995 | |
| Bore diameter | d | 62.738 mm |
| Basic dynamic load rating | C | 117 kN |
| Basic static load rating | C0 | 135 kN |
| Fatigue load limit | Pu | 21.9 kN |
| Reference speed | nref | 4450 r/min |
| Limiting speed | nG | 8400 r/min |
| Mass | ≈m | 0.48903 kg |
| Precision class | ABMA4 — Class 4 (ANSI/ABMA 19.2:2013) | |
| Cage | Standard — Sheet steel cage, window cage, roller-guided | |
| 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 | W215FB | Bainitic hardened |
| Cage | Standard | Sheet steel cage, window cage, roller-guided |
| Quality level | XL | X-life |
| Number of rows | 1 | Single-row design |
Main Dimensions & Performance Data8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 62.738 mm2.47 in |
| Width, inner ring | B | 25.4 mm1 in |
| Basic dynamic load rating, radial | Cr | 117,000 N26,303.957 lbf |
| Basic static load rating, radial | C0r | 135,000 N30,350.719 lbf |
| Fatigue load limit, radial | Cur | 21,900 N4,923.561 lbf |
| Limiting speed | nG | 8,400 1/min |
| Thermal speed rating | nϑr | 4,450 1/min |
| Mass | ≈m | 489.03 g17.25 oz |
Mounting dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Maximum diameter of shaft shoulder | da max | 69 mm2.717 in |
| Minimum diameter of shaft shoulder | db min | 75 mm2.953 in |
| Minimum axial space | CRa min | 3 mm0.118 in |
| Maximum axial space | CRb max | 0 mm0 in |
| Maximum fillet radius of shaft | ra max | 3.6 mm0.142 in |
Dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension of inner ring back face | r1, 2 min | 3.6 mm0.142 in |
| Distance between the apexes of the pressure cones | a | 23 mm0.906 in |
| Guidance rib diameter of inner ring | d1 | 82.6 mm3.252 in |
| Outer envelope circle | Ew | 98.417 mm3.875 in |
| Contact angle | α | 15.833 ° |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 200 °C392 °F |
Calculation factors3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y | e | 0.43 |
| Dynamic axial load factor | Y | 1.41 |
| Static axial load factor | Y0 | 0.78 |
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 Identity7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 1452922 | |
| Brand | FAG | |
| Base Type | K28995 | |
| X Life Marking | XL | |
| SAP material number | 0930340590000 | |
| Base product | 2305091003 | |
| Mounting Manager ID | K28995-XL-W215FB |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Tapered roller bearings without outer ring (Cone) K-Series, in inch sizes | |
| Short Description | Tapered roller bearing |
Technical Data21 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 62.738 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 117,000 N | |
| Basic Static Load Rating, Radial (C0R) | 135,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed (Ng) | 8,400 1/min | |
| Operating Temperature Max. (Tmax) | 200 °C | |
| Reference Speed (Nϑr) | 4,450 1/min | |
| Contact Angle (Α) | 15.833 ° | |
| Fatigue Load Limit, Radial (Cur) | 21,900 N | |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.43 | |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 69 mm | |
| Minimum Diameter Of Shaft Shoulder (Db Min) | 75 mm | |
| Dynamic Axial Load Factor (Y) | 1.41 | |
| Maximum Fillet Radius (Ra Max) | 3.6 mm | |
| Maximum Axial Space (Crb Max) | 0 mm | |
| Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M) | 3.6 mm | |
| Guidance Rib Diameter Of Inner Ring (D1) | 82.6 mm | |
| Minimum Axial Space (Cra Min) | 3 mm | |
| Width, Inner Ring (B) | 25.4 mm | |
| Static Axial Load Factor (Y0) | 0.78 | |
| Distance Between The Apexes Of The Pressure Cones (A) | 23 mm |
