Technical Specification
The DAC42780038 is a precision-engineered, sealed wheel hub bearing used in many front-wheel drive vehicles. Designed with double-row ball raceways, it effectively balances radial and axial loads. Its durable sealing structure keeps moisture and particles out, reducing the risk of premature wear. This bearing ensures smoother driving, improved wheel alignment, and noise reduction. It’s a reliable solution for auto manufacturers, garages, and distributors worldwide.
Technical Specification

| Wheel hub bearing | DAC42780038 | |
| Item Number | 42BWD09 | |
| d | 42 mm | Bore diameter |
| D | 78 mm | Outside diameter |
| B | 38 mm | Width of inner ring |
| Mass | 0.69 kg | / |
| Package | Industrial Packaging, Individual Packaging | |

Product Properties | |
| Bore | C - Cylindrical Bore |
| Seal | 2RS - Rubber Seal on Two Sides |
| Cage Type | S - Steel or Standard Cage |
| External Modification | No External Modification |
Radial Internal Play | Cn Normal Internal Play |
Precision | Standard Precision |
| Lubrication | Standard Lubrication |
| Heat Stabilization | No Heat Stabilization - Temperatures up to 120 °C |
| Split Inner ring / Outer ring | Standard |
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