478857.5 47*88*57.5mm Hight- quality Front Wheel Hub Bearing The 478857.5 high-quality front wheel hub bearing, with dimensions 47×88×57.5mm, is engineered for vehicle front wheel systems. It enables ultra-smooth, low-friction rotation, directly enhancing steering responsiveness and driving stability—critical for front-end control during turns and braking.Crafted from premium materials, it withstands heavy radial loads from the vehicle’s weight and frequent axial forces from