Nok Corporation

Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Kaoru Anzue

Satoshi Yamanaka

Jun Isomoto

Hideyuki Furuyama

Nobuo Takei

Kouichi Mizunoya

A sealing device comprising an annular support structure, a first annular sealing lip made of rubber and supported by the annular support structure, and a second annular sealing lip adjacent to the first annular sealing lip, the second annular sealing lip being made of resin and supported by the annular support structure. The first sealing lip made of rubber is located on the side to be scaled of the second sealing lip made of resin, and grease is held in a space formed by the first and second sealing lips and a shaft.

Sealing device

A sealing device including an annular support structure, a first annular sealing lip made of rubber and supported by the annular support structure, and a second annular sealing lip adjacent to the first annular sealing lip, the second annular sealing lip being made of resin and supported by the annular support structure. The first sealing lip made of rubber is located on the side to be sealed of the second sealing lip made of resin, and grease is held in a space formed by the first and second sealing lips and a shaft.

A sealing assembly is adapted to be disposed between a stationary part and a rotary shaft in the stationary part so as to provide a seal in the gap between the stationary part and the rotary shaft. The sealing assembly has a slinger capable of rotating as a unit with the rotary shaft, and a rubber seal having a lip which makes a sliding contact with the slinger. The portion of the slinger contacted by the lip of the rubber seal is provided with apertures which allow a lubricating oil to flow into the region of the sliding contact between the lip of the seal rubber and the portion of the slinger.

Excluder type seal with sliding friction reducing feature

A sealing device is adapted to be disposed between a stationary part and a rotary shaft in the stationary part so as provide a seal in the gap between the stationary part and the rotary shaft. The sealing device has a slinger secured to one of the stationary part and the rotary shaft and a rubber seal secured to the other of the stationary part and the rotary shaft and provided with a lip which makes a resilient pressure contact with the slinger. When the rotation speed of the rotary shaft is increased, centrifugal force is increased to cause a tendency to decrease the pressure of contact between the lip and the slinger so that the wear of the lip is prevented to improve the durability of the sealing device. In addition, the resistance torque produced by the sealing device is not increased substantially even when the speed of rotation of the rotary shaft is increased.

Growing community of inventors

Nihonmatsu, Japan

Kaoru Anzue