Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications14 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | 30252 | |
| Bore diameter | d | 260 mm |
| Outside diameter | D | 480 mm |
| Width | B | 89 mm |
| Basic dynamic load rating | C | 1460 kN |
| Basic static load rating | C0 | 2090 kN |
| Fatigue load limit | Pu | 206 kN |
| Reference speed | nref | 860 r/min |
| Limiting speed | nG | 1440 r/min |
| Mass | ≈m | 62.8 kg |
| Precision class | PN — Normal (ISO 492:2023) | |
| Cage | Standard — Sheet steel cage, window cage, roller-guided | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 200 °C |
Product characteristics6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Tolerance class | PN | Normal (ISO 492:2023) |
| Heat treatment | Standard | |
| Cage | Standard | Sheet steel cage, window cage, roller-guided |
| Internal design | Standard | |
| Quality level | Standard | |
| Number of rows | 1 | Single-row design |
Main Dimensions & Performance Data11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 260 mm10.236 in |
| Outside diameter | D | 480 mm18.898 in |
| Width, inner ring | B | 80 mm3.15 in |
| Width, outer ring | C | 67 mm2.638 in |
| Width, total | T | 89 mm3.504 in |
| Basic dynamic load rating, radial | Cr | 1,460,000 N328,237.41 lbf |
| Basic static load rating, radial | C0r | 2,090,000 N469,874.101 lbf |
| Fatigue load limit, radial | Cur | 206,000 N46,312.95 lbf |
| Limiting speed | nG | 1,440 1/min |
| Thermal speed rating | nϑr | 860 1/min |
| Mass | ≈m | 62.8 kg138.45 lbs |
Mounting dimensions9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Maximum diameter of shaft shoulder | da max | 310 mm12.205 in |
| Minimum diameter of shaft shoulder | db min | 280 mm11.024 in |
| Minimum diameter of housing shoulder | Da min | 419 mm16.496 in |
| Maximum diameter of housing shoulder | Da max | 457 mm17.992 in |
| Minimum diameter of housing shoulder | Db min | 447 mm17.598 in |
| Minimum axial space | Ca min | 10 mm0.394 in |
| Minimum axial space | Cb min | 22 mm0.866 in |
| Maximum fillet radius of shaft | ra max | 6 mm0.236 in |
| Maximum fillet radius of housing | rb max | 5 mm0.197 in |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension of inner ring back face | r1, 2 min | 6 mm0.236 in |
| Minimum chamfer dimension of outer ring back face | r3, 4 min | 5 mm0.197 in |
| Distance between the apexes of the pressure cones | a | 89 mm3.504 in |
| Guidance rib diameter of inner ring | d1 | 357 mm14.055 in |
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 | 0.4 |
| Dynamic axial load factor | Y | 1.48 |
| Static axial load factor | Y0 | 0.81 |
Capabilities & suitability6 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 | |
| Largebearing | Yes |
Manufacturer Identity8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 1848470 | |
| Brand | FAG | |
| Base Type | 30252 | |
| SAP material number | 0392508490000 | |
| Base product | 2305091001 | |
| Bearing X designation | 30252-A | |
| Mounting Manager ID | 30252-A | |
| Grease application ID | 30252-A |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Tapered roller bearings 302, main dimensions acc. to DIN 720, separable | |
| Short Description | Tapered roller bearing |
Technical Data28 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 260 mm | |
| Outside Diameter (D) | 480 mm | |
| Width (B) | 89 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 1,460,000 N | |
| Basic Static Load Rating, Radial (C0R) | 2,090,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed (Ng) | 1,440 1/min | |
| Operating Temperature Max. (Tmax) | 200 °C | |
| Reference Speed (Nϑr) | 860 1/min | |
| Maximum Fillet Radius Of Housing (Rb Max) | 5 mm | |
| Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M) | 5 mm | |
| Minimum Diameter Of Housing Shoulder (Da Min) | 419 mm | |
| Minimum Diameter Of Housing Shoulder (Db Min) | 447 mm | |
| Width, Outer Ring (C) | 67 mm | |
| Fatigue Load Limit, Radial (Cur) | 206,000 N | |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.4 | |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 310 mm | |
| Minimum Diameter Of Shaft Shoulder (Db Min) | 280 mm | |
| Maximum Diameter Of Housing Shoulder (Da Max) | 457 mm | |
| Dynamic Axial Load Factor (Y) | 1.48 | |
| Maximum Fillet Radius (Ra Max) | 6 mm | |
| Minimum Axial Space (Cb Min) | 22 mm | |
| Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M) | 6 mm | |
| Guidance Rib Diameter Of Inner Ring (D1) | 357 mm | |
| Minimum Axial Space (Ca Min) | 10 mm | |
| Width, Inner Ring (B) | 80 mm | |
| Static Axial Load Factor (Y0) | 0.81 | |
| Distance Between The Apexes Of The Pressure Cones (A) | 89 mm |