SKF BA1B311576 angular contact ball bearing. Single-row angular contact ball bearing configured to take combined radial and one-direction axial load. Contact angle 15°, 25°, 30° or 40° per suffix (BE / BEP / BECBP execution). Two bearings are commonly mounted in an opposing pair (back-to-back, face-to-face or tandem) so the pair carries axial load in both directions and takes moment load. Manufactured to ISO 492 Class Normal. Bore diameter d = 380 mm per ISO 15.
| Type | Angular contact ball bearing |
| Designation | SKF BA1B311576 |
| Standard | ISO 15 / DIN 623 dimension plan; ISO 492 Class Normal precision |
| HS code | 8482.10 |
| Bore diameter | 762 mm |
| Outside diameter | 889 mm |
| Width | 63.5 mm |
| Contact angle | 30 ° |
| Basic dynamic load rating | 449 kN |
| Basic static load rating | 1270 kN |
| Reference speed | 560 r/min |
| Limiting speed | 600 r/min |
| Contact type | Normal contact (two-point contact) |
| Number of rows | 1 |
| Locating feature, bearing outer ring | Without |
| Ring type | One-piece inner and outer rings |
| Cage | Non-metallic |
| Matched arrangement | No |
| Axial internal clearance | Not applicable |
| Tolerance class | Normal |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Indicative carbon footprint for new product | 214 kg CO2e |
| Product net weight | 57.8 kg |
| eClass code | 23-05-08-03 |
| UNSPSC code | 31171531 |
| Material | Bearing steel — 100Cr6 (through-hardened) or SNR-nitrided; cage as declared by suffix |
| Temperature range | -30 to +120 °C standard grease |
| Primary standard | ISO 15 / ISO 492 / DIN 623 |
| Dimensions | bore d = 380 mm |
| MOQ | 1 |
ISO 15 boundary-plan interchange — the numeric bore-code block is portable across every ISO 15 bearing manufacturer (SKF, Timken, NSK, NTN, FAG, Koyo, NACHI). Confirm suffix compatibility on cage, seal, clearance and precision class before substitution.