Recently, Seiko has developed a tire mounted on the cover member and mounted on the vehicle body parts integrated assembly bearing "with high reliability seal wheel bearing assembly." It is understood that Japan's Seiko plans for emerging countries, led to the global market launch of the product, and strive to make 2016 sales of 4 billion yen (US $ 051 million).

    Wheel bearing assembly mounted on a vehicle in the position closest to the road, although it is easy to be exposed to muddy water environment, but because it is an important part of supporting the body, and therefore need to have high reliability.

    So far, Japan has been carrying out precision improved water resistance of the high standard seal seal bearing hub assembly operations in emerging countries, it led to a global market. However, since Russia and other low-temperature region extremely harsh road environment, thus bearing resistance of mud is also highly anticipated. Seiko developed the hub bearing assembly, the additional auxiliary lip seal, lip seal can prevent obstruction of the main activities of dirt intrusion, water resistance is 1.5 times the previous products.

    Furthermore, the high seal and seal the same size as conventional products, without changing the wheel bearing assembly of the size, it can be applied to high reliability seal. By computer analysis, optimization of the surface pressure distribution of the sealing lip, even if additional auxiliary lip can be suppressed to increase the overall oil seal sliding resistance. By this measure, and in the past to achieve a wheel bearing assembly of the same friction.