Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Tapered roller bearings | |
| Bore diameter | d | 317.5 mm |
| Outside diameter | D | 422.275 mm |
| Basic dynamic load rating | C | 3924 kN |
| Basic static load rating | C0 | 7800 kN |
| Fatigue load limit | Pu | 655 kN |
| Mass | ≈m | 99.4 kg |
| Sealing | Seal on both sides | |
| Cage | Sheet metal | |
| Lubricant | None |
Dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 317.5 mm | |
| Outside diameter | 422.275 mm | |
| Width, total | 269.875 mm | |
| Width, inner ring | 269.875 mm | |
| Width, outer ring | 269.875 mm | |
| Contact angle | 12.0 ° |
Product identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official product category | Tapered roller bearings | |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/tapered-roller-bearings/four-row-tapered-roller-bearings | |
| Structure group ID | BT4_001 | |
| Available from SKF | Yes | |
| Remanufacturable | Yes |
Engineering — Calculation data11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| SKF performance class | SKF Explorer | |
| Basic dynamic load rating | C | 3924 kN |
| Basic static load rating | C 0 | 7800 kN |
| Fatigue load limit | P u | 655 kN |
| Comparative radial load rating | C F | 950 kN |
| Comparative axial load rating | C Fa | 150 kN |
| Thrust factor | K | 1.8 |
| Limiting value | e | 0.31 |
| Calculation factor | Y 1 | 2.2 |
| Calculation factor | Y 2 | 3.3 |
| Calculation factor | Y 0 | 2.2 |
Engineering — Dimensions8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 317.5 mm |
| Outside diameter | D | 422.275 mm |
| Total bearing width over inner rings | B | 269.875 mm |
| Total bearing width over outer rings | T | 269.875 mm |
| Abutment diameter shaft | d 1 | ≈ 335 mm |
| Abutment diameter housing | D 1 | ≈ 384 mm |
| Chamfer dimension inner ring | r 1,2 | min. 1.5 mm |
| Outer ring radius (chamfer) | r 3,4 | min. 3.3 mm |
Engineering — Engineering specifications2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Design variant/feature | TQOSN/GWSI | |
| Bore type | Cylindrical with helical groove |
Logistics1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 99.4 kg |
Performance3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 3924.0 kN | |
| Basic static load rating | 7800.0 kN | |
| SKF performance class | SKF Explorer |
Properties16 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bearing part | Complete bearing | |
| Design | TQO | |
| Number of rows | 4 | |
| Locating feature, bearing outer ring | Without | |
| Bore type | Cylindrical with helical groove | |
| Cage | Sheet metal | |
| Arrangement of contact angle (double-row bearing) | Not applicable | |
| Matched arrangement | No | |
| Coating | Without | |
| Sealing | Seal on both sides | |
| Sealing type | Contact | |
| Lubricant | None | |
| Relubrication feature | With | |
| Candidate for remanufacturing | Yes | |
| Indicative carbon footprint for new product | 368.0 kg CO 2 e | |
| Indicative carbon footprint for remanufactured product | 122.0 kg CO 2 e |
