Wheel Bearing Kit For BMW 5 VKBA3445
Width: 41 mm
Inner Diameter: 45 mm
Supplementary Article/Info 2: with ABS sensor ring
Flange Diameter: 4.88 In.
Bolt Circle Diameter: 4.17 In.
Wheel Pilot Diameter: 3.54 In.
Brake Pilot Diameter: 3.54 In.
Flange Offset: 1.46 In.
Hub Pilot Diameter: 3.46 In.
Hub Bolt Circle Diameter: 4.2 In.
Bolt Size: M10
Bolt Quantity: N/A
Bolt Hole qty: 4
ABS Sensor: Has ABS with Sensor not on Hu
Number of Splines: N/A
Second generation wheel bearing
On the basis of the first generation, the tapping holes and flanges of the second generation of hub bearing fixing nuts are mounted on the suspension bracket.
The second generation of hub bearings is characterized by fewer components, lighter weight and easier installation. The second generation of hub bearing outer ring with flange is connected directly to the suspension via the shackle (inner ring rotation type) or to the brake disc and steel ring (outer ring rotation type).
The second generation of wheel bearings are generally suitable for: Volkswagen LT, Kia, Renault, Saab, Jetta, Lavida, polo, etc.
The structure of the second-generation bearing is a bit more complicated, and the hub is integrated on the basis of a generation of bearings.
Compared with the first-generation bearing, this step of pressing into the hub is omitted during assembly, but it also needs to be assembled with the knuckle with an interference fit. The assembly accuracy is only slightly higher than that of the first-generation bearing. However, it also has the disadvantage of poor performance.
At present, in addition to some car manufacturers still insist on using on the rear wheel hub (I will not say that this car factory is Volkswagen), and it is used less and less like a generation of bearings, and eventually disappeared.
Third generation wheel bearing
The third-generation hub bearing unit with ABS sensor, the hub unit comprises an inner flange and an outer flange, the inner flange is bolted to the rim (steel ring), the outer flange and the outer ring of the bearing are integrated into one, and the steering is mounted On the festival.
The third generation of wheel bearings are generally suitable for Cadillac, Mazda, and many other high-class cars.
In terms of integration, the inner ring of the third-generation bearing integrates a hub, and the outer ring is integrated with a flange connecting the steering knuckle, and the steering knuckle can be connected by bolts. Assembly accuracy is greatly improved. And because all dimensions are precisely controlled at the supplier, performance is the best.