SKF · rolling bearings
SKF BT4B 331452 G/HA1
Tapered roller bearings — manufacturer technical reference and quotation support in Saudi Arabia.
لطلب عرض سعر في السعودية، أرسل رقم القطعة أو المقاس والكمية والمدينة. يُرجى تأكيد التوافق والتوفر والسعر مع فريقنا.
| Bore diameter | 288.925 mm |
|---|---|
| Outside diameter | 406.4 mm |
| Width, total | 298.45 mm |
| Width, inner ring | 298.45 mm |
| Width, outer ring | 292.45 mm |
| Contact angle | 12.7 ° |
| Basic dynamic load rating | 3580 kN |
| Basic static load rating | 9000 kN |
| 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 | Without |
| Lubricant | None |
| Relubrication feature | With |
| Candidate for remanufacturing | Yes |
| Indicative carbon footprint for new product | 463 kg CO_2e |
| Indicative carbon footprint for remanufactured product | 154 kg CO_2e |
| Product net weight | 125 kg |
| eClass code | 23-05-09-10 |
| Design variant/feature | TQO/GWI |
| Dimensions · Bore diameter · (d) | 288.925 mm |
| Dimensions · Outside diameter · (D) | 406.4 mm |
| Dimensions · Total bearing width over inner rings · (B) | 298.45 mm |
| Dimensions · Total bearing width over outer rings · (T) | 292.45 mm |
| Dimensions · Abutment diameter shaft · (d_1) · ≈ | 310 mm |
| Dimensions · Abutment diameter housing · (D_1) · ≈ | 368 mm |
| Dimensions · Chamfer dimension inner ring · (r_1,2) · min. | 3.3 mm |
| Dimensions · Outer ring radius (chamfer) · (r_3,4) · min. | 3.3 mm |
| Calculation data · Basic dynamic load rating · (C) | 3580 kN |
| Calculation data · Basic static load rating · (C_0) | 9000 kN |
| Calculation data · Fatigue load limit · (P_u) | 750 kN |
| Calculation data · Comparative radial load rating · (C_F) | 950 kN |
| Calculation data · Comparative axial load rating · (C_Fa) | 159 kN |
| Calculation data · Thrust factor · (K) | 1.7 |
| Calculation data · Limiting value · (e) | 0.33 |
| Calculation data · Calculation factor · (Y_1) | 2 |
| Calculation data · Calculation factor · (Y_2) | 3 |
| Calculation data · Calculation factor · (Y_0) | 2 |
Family specifications and selection conditions
| Product description | Four-row tapered roller bearings can accommodate combined heavy radial and axial loads at low to moderate speeds. They are used almost exclusively in work roll applications such as rolling mills. SKF manufactures four-row tapered roller bearings in TQO and TQI designs, in many variants and with different features. |
|---|---|
| Manufacturer features | Very high radial load carrying capacity • Accommodate axial loads in both directions • Axial space-saving solution for roll necks • Low friction • Long service life |
Manufacturer references
Follow the complete manufacturer documentation for application restrictions, materials, tolerances and installation requirements. Limits may not apply simultaneously. We do not publish inferred stock, pricing or ratings.